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Применить Всего найдено 4165. Отображено 100.
10-10-2004 дата публикации

СИСТЕМА УМЯГЧЕНИЯ ВОДЫ NA-КАТИОНИРОВАНИЕМ

Номер: RU0000040914U1
Автор: Ермаков П.П.

Система умягчения воды Na-катионированием, содержащая по крайней мере три ионообменных фильтра, трубопроводы подачи исходной воды, взрыхляющей воды, регенерирующего раствора с патрубками и задвижками, трубопроводы отвода умягченной воды, воды от взрыхления, отработанного регенерационного раствора, отмывочной воды с патрубками и задвижками, отличающаяся тем, что дополнительно содержит трубную разводку, соединяющую трубопроводы подачи воды на взрыхление по крайней мере трех ионообменных фильтров и имеющую задвижку. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 40 914 (13) U1 (51) МПК B01J 49/00 (2000.01) C02F 1/42 (2000.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2004114149/22 , 11.05.2004 (24) Дата начала отсчета срока действия патента: 11.05.2004 (45) Опубликовано: 10.10.2004 (72) Автор(ы): Ермаков П.П. (RU) (73) Патентообладатель(и): Ермаков Петр Петрович (RU) U 1 4 0 9 1 4 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Система умягчения воды Na-катионированием, содержащая по крайней мере три ионообменных фильтра, трубопроводы подачи исходной воды, взрыхляющей воды, регенерирующего раствора с патрубками и задвижками, трубопроводы отвода умягченной воды, воды от взрыхления, отработанного регенерационного раствора, отмывочной воды с патрубками и задвижками, отличающаяся тем, что дополнительно содержит трубную разводку, соединяющую трубопроводы подачи воды на взрыхление по крайней мере трех ионообменных фильтров и имеющую задвижку. 4 0 9 1 4 (54) СИСТЕМА УМЯГЧЕНИЯ ВОДЫ NA-КАТИОНИРОВАНИЕМ R U Адрес для переписки: 423800, Республика Татарстан, г. Набережные Челны, Элеваторная гора, ул. Спартаковская, 25, П.П. Ермакову U 1 U 1 4 0 9 1 4 4 0 9 1 4 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 40 914 U1 Полезная модель относится к системам водоподготовки котельных, ТЭЦ, обессоливания очистных сооружений сточных вод, и может быть использована в отраслях промышленности, применяющих ...

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27-07-2005 дата публикации

УСТРОЙСТВО ДЛЯ ВОССТАНОВЛЕНИЯ ГИДРОПОННЫХ СУБСТРАТОВ

Номер: RU0000046680U1

Устройство для восстановления гидропонных субстратов, содержащее камеру предварительной промывки и установку для ультразвуковой обработки, отличающееся тем, что оно включает установку для обработки в магнитом поле. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 46 680 (13) U1 (51) МПК B01J 20/34 (2000.01) B01J 49/00 (2000.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2005104346/22 , 17.02.2005 (24) Дата начала отсчета срока действия патента: 17.02.2005 (45) Опубликовано: 27.07.2005 R U 4 6 6 8 0 Формула полезной модели Устройство для восстановления гидропонных субстратов, содержащее камеру предварительной промывки и установку для ультразвуковой обработки, отличающееся тем, что оно включает установку для обработки в магнитом поле. Ñòðàíèöà: 1 U 1 U 1 (54) УСТРОЙСТВО ДЛЯ ВОССТАНОВЛЕНИЯ ГИДРОПОННЫХ СУБСТРАТОВ 4 6 6 8 0 (73) Патентообладатель(и): Министерство сельского хозяйства Российской Федерации Федеральное государственное образовательное учреждение высшего профессионального образования "Челябинский государственный агроинженерный университет" (ФГОУ ВПО ЧГАУ) (RU) R U Адрес для переписки: 454080, г.Челябинск, пр. Ленина, 75, ФГОУ ВПО ЧГАУ (72) Автор(ы): Авдеев М.В. (RU), Воловик Е.Л. (RU) , Трушин П.М. (RU), Попов В.М. (RU), Басарыгина Е.М. (RU) RU 5 10 15 20 25 30 35 40 45 50 46 680 U1 Полезная модель относится к сельскохозяйственному производству, а именно получению продукции растениеводства на гидропонной основе. Известна установка для очистки синтетических органических ионитов (Блянкман Л.М. Очистка фильтрующих материалов. - М.: Энергоиздат, 1981), содержащая генератор ультразвуковых колебаний, емкость для загрязненного материала, камеру для ультразвуковой обработки и цилиндр для отмывки. Однако данная установка недостаточно эффективна, поскольку требует многократной очистки сильно загрязненного материала. Наиболее близкой по технической сущности к заявленному техническому ...

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10-09-2006 дата публикации

УСТАНОВКА С ПРОТИВОТОЧНОЙ РЕГЕНЕРАЦИЕЙ ИОНООБМЕННОГО ФИЛЬТРА

Номер: RU0000056216U1

1. Установка с противоточной регенерацией ионообменного фильтра, состоящая из накопительной емкости для исходного раствора, ионообменного противоточного фильтра, снабженного патрубками, к которым присоединены трубопроводы с клапанами, обеспечивющими последовательное пропускание через фильтр исходного раствора и в противоточном направлении регенерирующего раствора и промывной воды, отличающаяся тем, что на патрубках установлены нижний и верхний солемеры, снизу и сверху фильтра размещены два клапана, которые соединены трубопроводами с накопительной емкостью для исходного раствора, причем верхний солемер соединен с клапаном возврата промывного раствора и клапаном выдачи регенерата, а нижний солемер соединен с клапаном возврата промывного раствора и клапаном выдачи очищенного раствора линиями управления с возможностью открытия клапанов в противофазе. 2. Установка по п.1, отличающаяся тем, что в качестве линии управления используют пневматическую или электрическую линию. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 56 216 (13) U1 (51) МПК B01J 49/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2006103870/22 , 10.02.2006 (24) Дата начала отсчета срока действия патента: 10.02.2006 (45) Опубликовано: 10.09.2006 (73) Патентообладатель(и): Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт неорганических материалов имени академика А.А. Бочвара" (RU) U 1 5 6 2 1 6 R U Ñòðàíèöà: 1 U 1 Формула полезной модели 1. Установка с противоточной регенерацией ионообменного фильтра, состоящая из накопительной емкости для исходного раствора, ионообменного противоточного фильтра, снабженного патрубками, к которым присоединены трубопроводы с клапанами, обеспечивющими последовательное пропускание через фильтр исходного раствора и в противоточном направлении регенерирующего раствора и промывной воды, отличающаяся тем, что на патрубках установлены нижний ...

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10-03-2007 дата публикации

СИСТЕМА ВЫНОСНОЙ РЕГЕНЕРАЦИИ ИОНИТОВ ВОДОПОДГОТОВИТЕЛЬНЫХ УСТАНОВОК

Номер: RU0000061583U1

1. Система выносной регенерации ионитов водоподготовительных установок, включающая рабочий фильтр смешанного действия с впускным и выпускным патрубками гидроперегрузки ионитов, фильтр разделения катионита и анионита и регенерации катионита с впускным и выпускным патрубками гидроперегрузки ионитов, верхним и нижним дренажными устройствами, средним дренажным устройством с выпускным патрубком гидроперегрузки ионитов и с содержащимся в этом фильтре слоем перегруженных на регенерацию ионитов, фильтр-регенератор анионита с впускным и выпускным патрубками гидроперегрузки ионитов, фильтр для промежуточного слоя с впускным и выпускным патрубками гидроперегрузки ионитов и трубопроводы напорной системы гидроперегрузки ионитов, отличающаяся тем, что в фильтре разделения катионита и анионита и регенерации катионита выше уровня расположения средней дренажной системы установлено дополнительное дренажное устройство с выпускным патрубком гидроперегрузки ионитов, а выпускной патрубок фильтра для промежуточного слоя ионитов связан трубопроводом системы напорной гидроперегрузки с впускным патрубком гидроперегрузки ионитов рабочего фильтра смешанного действия. 2. Система по п.1, отличающаяся тем, что высота расположения дополнительной дренажной системы над уровнем расположения средней дренажной системы в фильтре разделения катионита и анионита и регенерации катионита составляет 0,15-0,25 высоты общего слоя ионитной загрузки в этом фильтре. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 61 583 (13) U1 (51) МПК B01D 41/02 (2006.01) B01J 49/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2006135532/22 , 09.10.2006 (24) Дата начала отсчета срока действия патента: 09.10.2006 (45) Опубликовано: 10.03.2007 U 1 6 1 5 8 3 R U Формула полезной модели 1. Система выносной регенерации ионитов водоподготовительных установок, включающая рабочий фильтр смешанного действия с впускным и выпускным патрубками ...

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20-10-2008 дата публикации

УСТРОЙСТВО ВОССТАНОВЛЕНИЯ ОТРАБОТАННОГО РАСТВОРА ПОСЛЕ РЕГЕНЕРАЦИИ АНИОНИТНОГО ФИЛЬТРА

Номер: RU0000077265U1

1. Устройство восстановления отработанного раствора после регенерации анионитного фильтра, содержащее анионитный фильтр, соединенный с диафрагменным электролизером, диафрагма которого разделяет его рабочий объем на анодную и катодную зоны, причем последняя соединена с анионитным фильтром, отличающееся тем, что анионитный фильтр соединен с анодной зоной электролизера, а к его катодной зоне подведен водопровод. 2. Устройство по п.1, отличающееся тем, что диафрагма электролизера выполнена из водоотталкивающей ткани. 3. Устройство по п.1, отличающееся тем, что в качестве диафрагмы электролизера установлена мембрана, например сульфокатионитная. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 77 265 (13) U1 (51) МПК C02F 1/42 (2006.01) B01J 49/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008120344/22 , 22.05.2008 (24) Дата начала отсчета срока действия патента: 22.05.2008 (45) Опубликовано: 20.10.2008 (73) Патентообладатель(и): Закрытое акционерное общество "Производственное объединение Геоэкология" (RU) U 1 7 7 2 6 5 R U Ñòðàíèöà: 1 U 1 Формула полезной модели 1. Устройство восстановления отработанного раствора после регенерации анионитного фильтра, содержащее анионитный фильтр, соединенный с диафрагменным электролизером, диафрагма которого разделяет его рабочий объем на анодную и катодную зоны, причем последняя соединена с анионитным фильтром, отличающееся тем, что анионитный фильтр соединен с анодной зоной электролизера, а к его катодной зоне подведен водопровод. 2. Устройство по п.1, отличающееся тем, что диафрагма электролизера выполнена из водоотталкивающей ткани. 3. Устройство по п.1, отличающееся тем, что в качестве диафрагмы электролизера установлена мембрана, например сульфокатионитная. 7 7 2 6 5 (54) УСТРОЙСТВО ВОССТАНОВЛЕНИЯ ОТРАБОТАННОГО РАСТВОРА ПОСЛЕ РЕГЕНЕРАЦИИ АНИОНИТНОГО ФИЛЬТРА R U Адрес для переписки: 630032, г.Новосибирск, ул. Станционная, 2а, ЗАО "ПО ...

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27-12-2011 дата публикации

ФИЛЬТР-КОНТЕЙНЕР

Номер: RU0000111772U1

1. Фильтр-контейнер, включающий цилиндрический корпус с крышкой и днищем, патрубки подвода и отвода воды, патрубки гидрозагрузки и гидровыгрузки мелкозернистого материала и фильтрующий элемент, отличающийся тем, что фильтрующий элемент выполнен в виде вертикальной оправки с боковой спиральной фильтрующей поверхностью, проницаемой для воды и непроницаемой для загружаемого мелкозернистого материала, и зафиксирован с возможностью съема в центре днища соосно патрубку отвода воды. 2. Фильтр-контейнер по п.1, отличающийся тем, что фильтрующий элемент зафиксирован с возможностью съема в центре днища соосно патрубку отвода воды резьбовым соединением. 3. Фильтр-контейнер по п.1, отличающийся тем, что фильтрующий элемент зафиксирован с возможностью съема в центре днища соосно патрубку отвода воды фланцевым соединением. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 111 772 U1 (51) МПК B01D 41/02 (2006.01) B01J 49/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2011125915/05, 24.06.2011 (73) Патентообладатель(и): Открытое акционерное общество "Машиностроительный завод "ЗиОПодольск" (ОАО "ЗиО-Подольск") (RU) 24.06.2011 Приоритет(ы): (22) Дата подачи заявки: 24.06.2011 1 1 1 7 7 2 R U Формула полезной модели 1. Фильтр-контейнер, включающий цилиндрический корпус с крышкой и днищем, патрубки подвода и отвода воды, патрубки гидрозагрузки и гидровыгрузки мелкозернистого материала и фильтрующий элемент, отличающийся тем, что фильтрующий элемент выполнен в виде вертикальной оправки с боковой спиральной фильтрующей поверхностью, проницаемой для воды и непроницаемой для загружаемого мелкозернистого материала, и зафиксирован с возможностью съема в центре днища соосно патрубку отвода воды. 2. Фильтр-контейнер по п.1, отличающийся тем, что фильтрующий элемент зафиксирован с возможностью съема в центре днища соосно патрубку отвода воды резьбовым соединением. 3. Фильтр-контейнер по п.1, отличающийся тем, что фильтрующий ...

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08-03-2012 дата публикации

Process for the treatment of an ion exchange resin

Номер: US20120059073A1
Автор: Trevor Huw Morris
Принадлежит: Lucite International UK Ltd

A process for the reactivation of an acidic ion exchange resin is described. The invention relates to the treatment of an at least partially deactivated resin which has been deactivated by contact with an impure ethylenically unsaturated acid or ester containing target impurities. The reactivation includes the step of contacting the at least partially deactivated resin with an alcohol to thereby increase the activity thereof. The invention extends to reactivating a resin deactivated by contact with an impure ethylenically unsaturated acid, ester or nitrile containing target impurities by contacting the at least partially deactivated resin with an alcohol and a carboxylic acid to thereby increase the activity thereof. A reactivated resin and a process for preparing and purifying an ethylenically unsaturated acid or ester of the following formula:— R 1 —C(═(CH 2 )—COOR 2 are also described.

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15-03-2012 дата публикации

Method of Recovering Potassium from Waste Waters for Use in Purification of Waste Water, including the Waste Water from which the potassium is Recycled, while retaining the Potassium in forms suitable for use as a Nutrient in Growing Microbes, Plants and Algae

Номер: US20120061315A1
Автор: Gerald J Grott
Принадлежит: Individual

A method for recovering and/or utilizing potassium from waste waters for a plurality of applications. As algae and plants are able to survive and flourish in environments with high salt concentrations, waste waters containing potassium can be applied as fertilizers to the growth of microbes, algae and plants. The microbes, plants, and algae are able to absorb the necessary nutrients, such as nitrogen and potassium, from the waste waters. After depletion of the potassium content from the waste water, that waste water can then be treated to separate other contaminants. In another aspect of the present invention, the potassium content may be first separated from the waste water to be applied for growth of microbes, plants, and algae and again used for regeneration of cation resins in specific potassium forms. The remaining contaminants that are separated through treatment of the waste water can be utilized for different productions.

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07-06-2012 дата публикации

Removal of light fluoroalkanes from hydrocarbon streams

Номер: US20120142792A1
Принадлежит: ExxonMobil Research and Engineering Co

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C 3 to C 5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

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06-09-2012 дата публикации

Method for recovering a boron adsorbent

Номер: US20120225957A1
Принадлежит: Toshiba Corp

The present embodiment relates to a method for recovering a boron adsorbent, including: preparing water having an electric resistivity of 0.01 MΩ·cm or more and kept at a temperature within a temperature range; and contacting the water with the boron adsorbent to release boron adsorbed at the boron adsorbent.

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13-09-2012 дата публикации

Process and apparatus for carbon dioxide capture via ion exchange resins

Номер: US20120228553A1
Автор: Anthony P. Tirio
Принадлежит: Lanxess Sybron Chemicals Inc

A process for the reduction of carbon dioxide (or CO 2 ) from various types of gas emitting sources containing carbon dioxide, including the reduction of carbon dioxide from industrial gas emitting sources via the use of an ion exchange material in which a heated stream of carbon dioxide is utilized in the regeneration of the ion exchange material.

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20-09-2012 дата публикации

Method of removing acids from compositions comprising ionic liquids

Номер: US20120234766A1
Принадлежит: BASF SE

Method of separating acids from liquid compositions using a weakly basic ion exchanger, wherein the compositions comprise salts of an organic cation and an anion and the concentration of these salts in the composition is at least 1% by weight.

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08-11-2012 дата публикации

Ion exchange regeneration and upw treatment system

Номер: US20120283343A1
Принадлежит: General Electric Co

An improved process for regenerating ion exchange resin, includes a regeneration step of displacing captured ions from the resin to regenerate its ion-capture functionality, followed by one or more fluid-employing post-regeneration steps such as a fluid displacement or rinse, a fluid transporting or mixing, and a rinse down to quality. To avoid problems of early leakage of weakly held ions such as boron, the post-chemical or postdisplacement steps use water that is essentially free of boron, or otherwise avoid localized contamination in the regenerated resin which is used in bottles or beds ( 30 ). A two-stage polish may be operated with modified lead/lag bottles. A detector (D) for an indicator condition (conductivity, silica breakthrough) between stages determines when to shift the lag bottle forward, and periodically both bottles are replaced.

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15-11-2012 дата публикации

Method for producing potable water and/or purifying water including the elimination of a target compound and filtration within a filter drum

Номер: US20120285888A1

The invention relates to a method for treating water laden with pollutants for the purpose of making the water drinkable, said method including: an elimination step consisting of contacting said water laden with pollutants, within a stirred contact tank ( 2 ), with an active particulate material ( 19 ) using a predetermined concentration of the active particulate material ( 19 ) in said water; an extraction step consisting of continuously extracting from said contact tank ( 2 ) a mixture consisting of water and of active particulate material ( 19 ); a separation step consisting of continuously separating said active particulate material ( 19 ) from said mixture. According to the invention, the separation step consists in particular of feeding the mixture of water and active particulate material into a filter drum ( 4 ).

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13-12-2012 дата публикации

Control valve assembly

Номер: US20120313018A1
Автор: Raymond Lillback
Принадлежит: Individual

A control valve assembly ( 10 ) controls the flow of water to and from a treatment tank ( 16 ) and the regeneration of the treatment material therein. A housing of the valve assembly includes connections for a tank inlet and tank outlet, an inlet chamber ( 60 ), outlet chamber ( 34 ), a pressure-operated inlet valve ( 24 ) and an outlet valve ( 32 ). A pair of venturi chambers ( 81 a, 81 b ) are configured to provide co-current and counter-current regeneration. A subsystem includes a turbine ( 104 ) and a nozzle. An external port ( 130 ) receives fluid to to drive the turbine in order to initiate regeneration. The inlet valve ( 24 ) has dual seating surfaces for controlling the communication between the inlet chamber, transfer chamber ( 70 ), a bypass chamber and tank inlet ( 26 ). The bypass chamber may receive a blocking wall for blocking communication between the chamber and the outlet.

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30-05-2013 дата публикации

Steam purification

Номер: US20130134099A1
Принадлежит: LANXESS DEUTSCHLAND GMBH

This invention relates to an improved process for producing weakly acidic cation exchange resins, in particular the purification of weakly acidic cation exchange resins derived from crosslinked poly(acrylonitrile) and also the use of steam for reducing the leaching of weakly acidic cation exchangers and finally a process for increasing the performance of water treatment systems, preferably of tap water treatment systems, using the weakly acidic cation exchangers produced according to the invention.

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13-06-2013 дата публикации

ACID REGENERATION OF ION EXCHANGE RESINS FOR INDUSTRIAL APPLICATIONS

Номер: US20130146086A1
Принадлежит: ECOLAB USA INC.

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A system employing an ion exchange resin regenerated by an acid comprising:an inlet for providing a water source;a water treatment reservoir;a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;an outlet; anda water delivery line in fluid communication with a cleaning application and/or storage reservoir to provide the treated water source to the cleaning application and/or storage reservoir;wherein the inlet is in fluid communication with the water treatment reservoir;wherein a first end of the outlet is in fluid communication with the water treatment reservoir and a second end is in fluid communication with the water delivery line;wherein the treated water source is a softened, acidic, and low total dissolved solids (TDS) water having a hardness level of less than about 2 grains and a pH less than about 6.2. The system according to claim 1 , wherein said ion exchange resin is a weak acid cation exchange resin and/or a strong acid cation exchange resin.3. The system according ...

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13-06-2013 дата публикации

INTEGRATED ACID REGENERATION OF ION EXCHANGE RESINS FOR INDUSTRIAL APPLICATIONS

Номер: US20130146087A1
Принадлежит: ECOLAB USA INC.

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. An integrated system employing an ion exchange resin regenerated by an acid for producing an acidic softened water source comprising:an inlet for providing a water source;a water treatment reservoir, wherein the inlet is in fluid communication with the water treatment reservoir;a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;an outlet, wherein the outlet is in fluid communication with the water treatment reservoir;a chamber into which articles are placed for cleaning;a treated water delivery line in fluid communication between the outlet and the chamber;a wash tank, wherein the wash tank is in fluid communication with a dispensing module that dispenses a wash agent into the wash tank;a wash agent delivery line in fluid communication with the wash tank and the chamber;an acid delivery line in fluid communication with the water treatment reservoir, wherein an acid regenerant is delivered to the water ...

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11-07-2013 дата публикации

ELECTRICALLY REGENERABLE WATER SOFTENING APPARATUSES AND METHODS OF OPERATING THE SAME

Номер: US20130175221A1
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Electrically regenerable water softening apparatuses, and methods of operating the same, include a first electrode and a second electrode facing each other; a first electrolyte chamber, a first cation exchange membrane, an ion exchange chamber, a second cation exchange membrane, and a second electrolyte chamber which are interposed between the first electrode and the second electrode; an inflow water flow channel configured to introduce inflow water to the ion exchange chamber; a first treated water flow channel configured to discharge treated water softened in the ion exchange chamber; a second treated water flow channel connecting at least one chamber selected from the first electrolyte chamber and the second electrolyte chamber with an ion exchange chamber; and a current applier configured to apply current to the first electrode and the second electrode. The ion exchange chamber is filled with a cation exchanger. 1. An electrically regenerable water softening apparatus , comprising:a first electrode and a second electrode facing each other;a first electrolyte chamber, a first cation exchange membrane, an ion exchange chamber filled with a cation exchanger, a second cation exchange membrane, and a second electrolyte chamber, which are interposed between the first electrode and the second electrode;an inflow water flow channel configured to introduce inflow water to the ion exchange chamber;a first treated water flow channel configured to discharge treated water softened in the ion exchange chamber;a second treated water flow channel connecting at least one chamber selected from the first electrolyte chamber and the second electrolyte chamber with the ion exchange chamber; anda current applier configured to apply a current to the first electrode and the second electrode.2. The electrically regenerable water softening apparatus of claim 1 , wherein the inflow water has a concentration of hardness ions; andthe inflow water flow channel is configured to introduce the ...

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01-08-2013 дата публикации

ACID REGENERATION OF ION EXCHANGE RESINS FOR INDUSTRIAL APPLICATIONS

Номер: US20130192639A1
Принадлежит: ECOLAB USA INC.

Methods and systems for employing softened acidified water sources from an acid regenerated ion exchange resins are disclosed. Various methods of dispensing and/or using the softened acidic water generated by an acid regenerate-able ion exchange resin are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, including water conditioning agents, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A dispensing system employing an ion exchange resin regenerated by an acid comprising:an inlet for providing a water source to a water conditioning unit, wherein the inlet is in fluid communication with the water conditioning unit;a water conditioning unit comprising a water treatment component housed within, wherein said water treatment component comprises at least one weak acid and/or strong acid ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source; andan outlet for providing the treated water source to a water delivery line, wherein the water delivery line is in fluid communication with the water conditioning unit and a blending unit, wherein the blending unit generates and/or dispenses a use solution of a cleaning composition by combining the treated water source with a concentrated cleaning composition.wherein the treated water source meets a defined water specification, and wherein the water specification is a softened, acidic water having a total dissolved solids (TDS) below about 200 ppm, a hardness level of less than about 2 grains and a pH less than about 6.2. The system according to claim 1 , further comprising a cleaning composition use solution delivery line that is in fluid connection with the blending unit to provide the ...

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01-08-2013 дата публикации

SULPHUR-CONTAINING AND SULPHONATED AROMATIC PERFLUOROALKANE MONOMER

Номер: US20130197110A1
Автор: Fedurco Milan
Принадлежит:

A sulphur-containing and sulphonated aromatic perfluoroalkane monomer is provided that can be used for the manufacture of a polymer membrane for a PEM-type fuel cell. The perfluoroalkane monomer is a functionalized polymer that has a structure corresponding to a formula (I): 19-. (canceled)11. The monomer according to claim 10 , wherein n is in a range from 2 to 20.12. The monomer according to claim 10 , wherein n is in a range from 2 to 8.13. The monomer according to claim 10 , wherein Eand E claim 10 , which are identical or different claim 10 , are chosen from a group that includes: halogens claim 10 , carboxyls claim 10 , acyl chloride claim 10 , sulphonyl chloride claim 10 , sulphonyl fluoride claim 10 , isocyanate claim 10 , and combinations thereof.14. The monomer according to claim 13 , wherein Eand E claim 13 , which are identical or different claim 13 , represent halogens.15. The monomer according to claim 14 , wherein the monomer corresponds to a formula (II):{'br': None, 'sub': 1', '1', '2', 'n', '2', '2, 'F—Ar—X—(CF)—X—Ar—F\u2003\u2003(II).'}16. The monomer according to claim 14 , wherein the monomer corresponds to a formula (III):{'br': None, 'sub': 1', '1', '2', 'n', '2', '2, 'Cl—Ar—X—(CF)—X—Ar—Cl\u2003\u2003(III).'}17. The monomer according to claim 10 , wherein n is equal to 4.18. The monomer according to claim 11 , wherein n is equal to 4.19. The monomer according to claim 12 , wherein n is equal to 4.20. The monomer according to claim 13 , wherein n is equal to 4.21. The monomer according to claim 14 , wherein n is equal to 4.22. The monomer according to claim 15 , wherein n is equal to 4.23. The monomer according to claim 16 , wherein n is equal to 4. The present invention relates to the monomers which can be used for the synthesis of polymers intended in particular, in the sulphonated form, to constitute a solid electrolyte or membrane in a fuel cell.It relates more particularly to the above monomers of the aromatic type comprising a central ...

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20-03-2014 дата публикации

Twin tank water treatment method

Номер: US20140076813A1
Принадлежит: Pentair Residential Filtration LLC

Embodiments of the invention provide a twin tank water treatment system and method. The water treatment system includes first tank with a first set of sensors and a first resin bed, a second tank with a second set of sensors and a second resin bed, and a valve assembly with a flow meter and a controller in communication with the first set of sensors, the second set of sensors, and the flow meter. The method includes determining when the resin beds are exhausted based on input from the flow meter, the sensors, and a water hardness setting.

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20-03-2014 дата публикации

APPARATUS AND CIRCULATING FLUIDIZED BED SYSTEM

Номер: US20140076816A1
Принадлежит:

A novel apparatus for an ion exchange system is provided. The apparatus comprises a first column for housing a first fluidized bed through which particles are flowed countercurrently to an ion-containing fluid to yield ion-loaded particles, a second column through which the ion-loaded particles are flowed countercurrently to an eluent fluid to yield regenerated particles, and a transport section which transfers the regenerated particles for re-introduction into the first column to repeat the ion exchange cycle in a continuous manner. A continuous method of ion exchange is also provided. 1. An apparatus for a fluidized ion exchange bed system comprising:a first column for housing a first fluidized bed, said first column comprising a first particle-feeding means to feed ion exchange or adsorbent particles into an upper region of said first column and a first fluid-feeding means to feed a first ion-containing fluid into a lower region of said first column to form a fluidized bed in the first column, said first column further comprising a first fluid outlet in the upper region at a height above the first particle-feeding means, said lower region being remote from said upper region such that said particles and said fluid flow counter-currently in the first fluidized bed, wherein the upper region comprises a first end of the first column and the lower region comprises a second end of the first column;a second column for housing a second fluidized bed, a second particle-feeding means to feed particles into an upper end of said second column and a second fluid-feeding means to feed a second ion-eluting fluid into a lower end of said second column to form a second fluidized bed in the second column, a second fluid outlet at the upper end of the second column at a height above the second particle-feeding means, said upper and lower ends being remote such that said particles and said fluid flow counter-currently through said second column;a first means connecting the first and ...

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07-01-2021 дата публикации

Antioxidant Protection for Ion Exchange Resins

Номер: US20210001323A1
Принадлежит: Evoqua Water Technologies LLC

Methods of stabilizing virgin ion exchange resin material are provided. The methods include cleansing the virgin ion exchange resin material with a preparation comprising a non-ionic detergent. The methods include cleansing the virgin ion exchange resin material with a preparation comprising an alcohol solvent. The methods include rinsing virgin ion exchange resin material with deoxygenated water. the methods include introducing the cleansed/rinsed virgin ion exchange resin material into a gas impermeable vessel and hermetically sealing the vessel. The methods include introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing a cleansed virgin ion exchange resin material in deoxygenated water is also disclosed. 1. A method of stabilizing virgin ion exchange resin material , the method comprising:cleansing the virgin ion exchange resin material with a preparation comprising a non-ionic detergent at a concentration below the non-ionic detergent's critical micelle concentration to produce a cleansed virgin ion exchange resin material;introducing the cleansed virgin ion exchange resin material into a gas impermeable vessel; andhermetically sealing the vessel.2. The method of claim 1 , further comprising rinsing the cleansed virgin ion exchange resin material with deoxygenated water.3. The method of claim 1 , wherein the non-ionic detergent comprises at least one of ethoxylated octyl phenol claim 1 , polysorbate claim 1 , polyoxyethylene and a metabolite thereof4. The method of claim 3 , wherein the preparation comprises less than about 0.125 g/L ethoxylated octyl phenol.5. The method of claim 1 , comprising introducing the cleansed virgin ion exchange resin material into a liquid impermeable container of the gas impermeable vessel.6. A method of stabilizing virgin ion exchange resin material claim 1 , the method comprising:cleansing the ...

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02-01-2020 дата публикации

GAS RECOVERY AND CONCENTRATION DEVICE

Номер: US20200001233A1
Автор: OKANO Hiroshi
Принадлежит: SEIBU GIKEN CO., LTD.

An energy efficient and durable thermal swing type carbon dioxide recovery and concentration device can be made smaller and use low-temperature heat waste of 100° C. or less. A honeycomb rotor carries adsorption particles having a sorption capacity for carbon dioxide. The rotor is rotated in a sealed casing divided into at least an sorption zone and a desorption zone and is brought into contact with material gas that contains carbon dioxide in a state wherein the honeycombs in the sorption zone are moist so as to adsorb the carbon dioxide while carrying out evaporative cooling of water. Then, the honeycombs that have adsorbed the carbon dioxide are moved to the desorption zone and brought into contact with low pressure vapor so as to desorb high concentration carbon dioxide. Thus, it is possible to continuously recover carbon dioxide at a high recovery rate and high concentration. 111-. (canceled)12. A method comprising:providing a honeycomb rotor which supports non-water soluble carbon dioxide sorption particles having a sorption capability for carbon dioxide;rotating the honeycomb rotor though at least a sorption zone and a desorption zone which are sealed from each other; and making said sorption zone contact with a mixed gas which contains carbon dioxide while said sorption zone is wet, to sorb carbon dioxide from the mixed gas by cooling the mixed gas and vaporizing water in said sorption zone; and', 'after rotating the honeycomb rotor, desorbing the carbon dioxide by providing water vapor to the desorption zone and introducing the water vapor into honeycombs of said honeycomb rotor which have sorbed carbon dioxide, to thereby desorb carbon dioxide from the desorption zone in a state of high concentration., 'performing a recovery concentration method for carbon dioxide while rotating said honeycomb rotor, the recover concentration method comprising13. A carbon dioxide recovery concentration device comprising:a honeycomb rotor which supports non-water soluble ...

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04-01-2018 дата публикации

CHROMATOGRAPHY MEDIA AND ION EXCHANGE RESIN PERFORMANCE RESTORATION

Номер: US20180001314A1
Принадлежит:

An ion exchange resin rejuvenation system includes a vessel, a source of a first cleaning solution including an enzyme fluidly connected to the vessel, a source of a second cleaning solution fluidly connected to the vessel, a source of rinse solution connected to the vessel, and a source of a resin regeneration solution fluidly connected to the vessel. 113.-. (canceled)14. A method of rejuvenating ion exchange resin , the method comprising:treating an ion exchange resin contaminated with a protein layer with a first cleaning solution including an enzyme to provide a stripped ion exchange resin and protein fragments.15. The method of claim 14 , wherein treating the ion exchange resin with the first cleaning solution includes treating the ion exchange resin with a protease.16. The method of claim 15 , wherein treating the ion exchange resin with the first cleaning solution includes treating the ion exchange resin with subtilisin.17. The method of claim 14 , wherein treating the ion exchange resin with the first cleaning solution includes treating the ion exchange resin with the first cleaning solution at a temperature of about 55° C.18. The method of claim 14 , wherein treating the ion exchange resin with the first cleaning solution includes treating the ion exchange resin with the first cleaning solution at a pH of about 9.19. The method of claim 14 , further comprising backwashing the protein fragments.20. The method of claim 14 , further comprising treating the stripped ion exchange resin with a second cleaning solution to provide a cleaned ion exchange resin.21. The method of claim 20 , wherein treating the stripped ion exchange resin with the second cleaning solution comprises treating the stripped ion exchange resin with an acid.22. The method of claim 20 , wherein treating the stripped ion exchange resin with the second cleaning solution includes treating the stripped ion exchange resin with at least one of a caustic solution claim 20 , a base solution claim 20 ...

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20-01-2022 дата публикации

METHOD FOR CONDITIONING ION EXCHANGE RESINS AND APPARATUS FOR CARRYING OUT THE METHOD

Номер: US20220020507A1
Принадлежит:

A method for conditioning of spent ion exchange resins from nuclear facilities comprises the steps of: mixing the spent ion exchange resins with water to form a reaction mixture; setting and controlling the pH of the reaction mixture in a range from 1.0 to 3.5, preferably in a range from 2.0 to 3.0; adding an oxidant to the reaction mixture, with the temperature of the reaction mixture maintained at 90 ° ° C. or less so that the spent ion exchange resin and the oxidant react with each other to form an aqueous reaction solution comprising the organic reaction products of the spent ion exchange resin; and electrochemically oxidizing the organic reaction products, wherein carbon dioxide is produced and a carbon-depleted aqueous reaction solution having a TOC (total organic carbon) value of less than 50 ppm is obtained. Furthermore, an apparatus for the conditioning of spent ion exchange resins from nuclear facilities is described. 1. A method for conditioning of spent ion exchange resins from nuclear facilities , comprising the steps of:mixing the spent ion exchange resins with water to form a reaction mixture;{'b': 3', '5, 'setting and monitoring the pH of the reaction mixture in a range from 1.0 to .;'}adding an oxidant to the reaction mixture, with the temperature of the reaction mixture maintained at 90° C. or less, so that the spent ion exchange resin and the oxidant react with each other to form an aqueous reaction solution comprising organic reaction products of the spent ion exchange resin; andelectrochemically oxidizing the organic reaction products in the reaction solution by means of a boron-doped diamond electrode, wherein carbon dioxide is produced and a carbon-depleted aqueous reaction solution having a TOC (total organic carbon) value of less than 50 ppm is obtained.2. The method according to claim 1 , characterized in that the ion exchange resins contain organic complexing agents.3. The method according to claim 1 , characterized in that the reaction ...

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11-01-2018 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20180008974A1
Принадлежит:

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid salt regenerant;generating the treated water source within a ware wash machine; andproviding the treated water source to a chamber into which articles are placed for cleaning;wherein the treated water source meets a defined water specification, and wherein the water specification is a softened, acidic water with a total dissolved solids (TDS) of less than about 300 ppm, a hardness level of less than about 2 grains and a pH less than about 6,wherein the use of said treated water source improves cleaning efficacy as measured by a reduction in spotting and filming and/or preventing scale build up on articles and ...

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14-01-2021 дата публикации

Multi-Column Continuous Resin Regeneration System

Номер: US20210008539A1
Принадлежит:

A continuous resin regeneration system includes a process by which resin in need of being recharged is continuously recharged and cleaned with a plurality of two-set filtration columns so that resin regeneration and the flow of influent is continuous and interrupted. Downstream filtration columns also undergo this cycling but at slower and related rates as the first column with the dirtiest water will naturally degrade resin faster than the downstream columns. Contaminated influent is cleaned by the continuously recharged resin in multiple column sets. The degree of cleaning of earlier filtration columns affects the resin flow rate of later filtration columns. 1. A continuous resin regeneration system for use in cleaning a water stream from a contaminated water reservoir , comprising:a first anion resin set having a first anion column and a second anion column in fluid communication with the first anion column, said first anion column and said second anion column of said first anion resin set including an anion resin;a first cation resin set having a first cation column and a second cation column in fluid communication with the first cation column, said first cation column and said second cation column of said first cation resin set including a cation resin;a first set control valve in fluid communication with the water reservoir, with said first anion column of said first anion resin set, and with said second anion column of said first anion resin set;a second set control valve in fluid communication with the water reservoir, said first cation column of said first cation resin set, and with said second cation column of said first cation resin set; anda controller in data communication with said first set control valve, said controller configured to determine if said anion resin associated with said first anion column of said first anion resin set is greater than a predetermined parameter and, if so, to actuate said first set control valve to direct the water stream ...

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27-01-2022 дата публикации

Resin for desalination and process of regeneration

Номер: US20220025091A1
Принадлежит: NEWSOUTH INNOVATIONS PTY LTD

Disclosed is an ion exchange resin comprising a polymer having strong acid and strong base groups on the same polymer. In some forms the resin comprises a high density of polymers having strong acid and strong base groups on the same polymer. In some forms the strong acid and strong base groups are in close proximity to one another on the polymer. The disclosure further relates to a mixed bead resin for high salt level desalination.

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10-01-2019 дата публикации

Process for Stripping Carbamate from Ion Exchange Resin

Номер: US20190009268A1
Автор: SHEEDY Michael A.
Принадлежит:

In a preferred embodiment, there is provided a process for separating an amine compound or a conjugate acid thereof and a carbamate compound or a conjugate acid thereof from a mixture having the amine compound, the carbamate compound, carbon dioxide and at least one anionic contaminant salt using an anionic exchange column, the process including passing the mixture through the column to obtain a first effluent and passing through the column an extraction fluid to obtain a second effluent, where the extraction fluid most preferably includes carbonic acid. 1. A process for separating an amine compound or a conjugate acid thereof and a carbamate compound or a conjugate acid thereof from a mixture having the amine compound , the carbamate compound , carbon dioxide and at least one anionic contaminant salt using an anionic exchange column having a plurality of anion exchange sites ,{'sub': 3−x', 'x', 'y', '2−y', '1', '8', '1', '4', '1', '4, 'sup': 1', '1', '1', '1', '−', '1', '1, 'the amine compound being an optionally substituted piperazine or having formula (1) of RN(R-Q-R—OH)and the carbamate compound being an optionally substituted piperazine carbamate or piperazine dicarbamate, or having formula (2) of (HO—R-Q-R)NHC(O)O, wherein at least a portion of the carbamate compound is present in the mixture from a reversible reaction between the amine compound and the carbon dioxide to produce the carbamate compound and a hydrogen atom or the conjugate acid of the amine compound, wherein x and y are independently of each other 1 or 2, R is a hydrogen atom or optionally substituted straight or branched C-Calkyl, Ris nothing or optionally substituted straight or branched C-Calkylene, and Q is nothing, O or S, and wherein the optionally substituted piperazine comprises at least one ring nitrogen atom bonded to a hydrogen atom, at least one R is a hydrogen atom, and at least Rin each said formulas (1) and (2) is optionally substituted straight or branched C-Calkylene;'} passing ...

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10-01-2019 дата публикации

DEIONIZATION DEVICE

Номер: US20190010063A1
Автор: SCHMIDT Harald
Принадлежит:

A deionization device for liquids includes a first chamber for a first ion exchange agent that has a first intake opening and a first discharge opening. A second chamber for a second ion exchange agent has a second intake opening and a second discharge opening. A line connects the first chamber and the second chamber that has a third intake opening and a third discharge opening. The third intake opening is dedicated to the first discharge opening of the first chamber and the third discharge opening is dedicated to the second intake opening of the second chamber. The line also has a first regeneration opening for a first regeneration liquid, wherein the first regeneration opening can be closed for deionization, and wherein the line can be closed for regenerating the deionization device such that the third intake opening can be isolated from the third discharge opening. 1. A deionization device for liquids , comprising:a first chamber for a first ion exchange agent that has a first intake opening and a first discharge opening, a second chamber for a second ion exchange agent that has a second intake opening and a second discharge opening, a line for connecting the first chamber and the second chamber, that has a third intake opening and a third discharge opening, wherein the third intake opening is dedicated to the first discharge opening of the first chamber and the third discharge opening is dedicated to the second intake opening of the second chamber, wherein the line also has a first regeneration opening for a first regeneration liquid, wherein the first regeneration opening is closed for deionization, and wherein the line is closed for regenerating the deionization device such that the third intake opening can be is isolated from the third discharge opening.2. The deionization device according to claim 1 , wherein the line has a second regeneration opening for a second regeneration liquid claim 1 , wherein the second regeneration opening is closed for ...

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09-01-2020 дата публикации

Valve Controller System and Method

Номер: US20200011197A1
Принадлежит:

Embodiments of the invention provide a valve controller configured to network with one or more other valve controllers in a water condition system, providing on-board communication between valves. The valve controller can provide, among other features, improved demand recall, user settings protection, dynamic addressing and automatic master unit selection, network settings push capabilities, and/or descriptive error log displays. 1. A valve controller configured to control a valve in a water conditioning system , the valve controller comprising:a controller housing;a user interface on the controller housing, the user interface including a display and one or more buttons configured to receive user inputs; and communicate with one or more other valve controllers in the water conditioning system,', 'store a plurality of system parameters in memory,', 'control the motor to operate the valve based on one or more of the system parameters,', 'update one or more of the system parameters based on the user inputs received through the user interface, and', 'push the updated system parameters to the one or more other valve controllers in the water conditioning system., 'a control board supported by the controller housing, the control board including a microcontroller in communication with the display, the one or more buttons, and a motor configured to the control the valve, the microcontroller configured to2. The valve controller of claim 1 , wherein the microcontroller is further configured to display an error log to a user via the display claim 1 , wherein each error in the error log includes an error description and a timestamp.3. The valve controller of claim 1 , wherein the microcontroller is further configured to restrict access to the plurality of system parameters unless a specified user input is received claim 1 , the specified user input including one of a pre-set button hold delay claim 1 , a pre-set passcode claim 1 , or a pre-set clock time.4. The valve controller ...

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16-01-2020 дата публикации

Reclaiming method

Номер: US20200016529A1

A reclaiming method is disclosed including conducting evaporation by introducing a part of the absorbent to recover CO2 or H2S in a gas in a closed system recovery unit and separating a degraded substance contained in the absorbent from the absorbent to be introduced into an evaporator and obtain recovery steam containing an absorbent and CO2 or H2S by a heating section that is provided on a circulation line that circulates in the evaporator; and removing ionic degraded substance by cooling the concentrate obtained in the evaporation and removing an ionic degraded substance in the concentrate after the cooling, wherein a purified concentrate from which the ionic degraded substance has been removed is reused as a purified absorbent.

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24-01-2019 дата публикации

FLUID PURIFICATION BY FORWARD OSMOSIS, ION EXCHANGE AND RE-CONCENTRATION

Номер: US20190022591A1
Автор: GRIESSLER Thomas
Принадлежит:

An apparatus () for purifying fluid, wherein the apparatus () comprises an osmosis unit () configured for pre-purifying the fluid to be purified by forward osmosis of the fluid, which is to be purified, through an osmosis membrane () into a chamber () comprising dissolved first ions, in particular first cations and first anions, an ion exchange unit () configured for exchanging at least part of the first ions, in particular at least part of at least one of the first cations and the first anions, by second ions, in particular at least one of second cations and second anions, and a re-concentration unit () configured for separating the pre-purified fluid after the ion exchange into purified fluid and into a re-concentrate enriched with the respective ions, in particular anions and cations. 1. An apparatus for purifying fluid , the apparatus comprising:an osmosis unit configured for pre-purifying the fluid to be purified by forward osmosis of the fluid to be purified through an osmosis membrane into a chamber comprising dissolved first ions, in particular first cations and first anions;an ion exchange unit configured for exchanging at least part of the first ions, in particular at least part of at least one of the first cations and the first anions, by second ions, in particular at least one of second cations and second anions;a re-concentration unit configured for separating the pre-purified fluid after the ion exchange into purified fluid and into a re-concentrate enriched with the respective ions, in particular anions and cations.2. The apparatus according to claim 1 , wherein the osmosis unit is configured for promoting a flow of the fluid to be purified through the osmosis membrane while inhibiting a flow of contaminants from the fluid to be purified towards the chamber and while inhibiting the first ions claim 1 , in particular the first cations and the first anions claim 1 , from flowing through the osmosis membrane towards the fluid to be purified.3. The ...

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10-02-2022 дата публикации

Processes and systems for producing and/or purifying gallium-68

Номер: US20220044835A1
Принадлежит: SOCPRA Sciences et Genie SEC

The present disclosure relates processes and systems for producing and/or purifying 68Ga from an irradiated substrate of 68Zn. In some embodiments, the process rely on the use two cation-exchange chromatography columns to separate 68Ga from 68Zn and other radionuclides and metallic impurities. The process achieves a high overall yield of 68Ga and a high effective molar activity while being implementable in a time compatible with the short half-life of 68Ga. In additional embodiments, the process is implemented by an automated system.

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02-02-2017 дата публикации

ION EXCHANGE PROCESS

Номер: US20170028395A1
Автор: Bewsey John Arthur
Принадлежит:

Disclosed herein is a process for carrying out an ion exchange process which involves providing two interacting sets of banks of continuously stirred tank reactors (CSTR's) each containing a bed of ion exchange resin and causing the resin to move in one direction through each bank of reactors and the feed solution and/or or eluant in the opposite direction. In carrying out the process, a feed solution is introduced in a first reactor causing dissolved ions to be captured on the resin, eluant is introduced into a reactor upstream of the first reactor in the direction of resin movement causing ions captured on the resin to be removed into the eluant and eluant rich in ions removed from the resin will be taken from a reactor upstream of the reactor in which the eluant was introduced, for further processing. Thus, in this form of the invention there is, in effect, a loading bank of reactors in which ions from the feed solution are captured followed by a regenerating bank of reactors in which the eluant removes the ions captured on the resin and regenerates the resin. 134-. (canceled)35. A process for carrying out an ion exchange process in which two interacting sets of banks of continuously stirred tank reactors (CSTR's) each containing a slurry of ion exchange resin are provided , and causing the resin to move in one direction through each bank of reactors and the feed solution and/or or eluent , countercurrent , in the opposite direction , the interacting sets of banks of CSTR's comprising:a first set of banks of catex CSTR's containing a cation exchange resin and comprising:a loading bank of catex CSTR's in which cations from a feed solution are captured, and a regenerating bank of catex CSTR's reactors in which an eluent removes the cations captured on the resin and regenerates the cation exchange resin; anda second set of banks of anex CSTR's containing an anion exchange resin and comprising:a loading bank of anex CSTR's in which anions from a feed solution are ...

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02-02-2017 дата публикации

PHYSICO-CHEMICAL PROCESS FOR REMOVAL OF NITROGEN SPECIES FROM RECIRCULATED AQUACULTURE SYSTEMS

Номер: US20170029299A1
Принадлежит:

Processes for removing nitrogen species from fresh water or high salinity water recirculated aquaculture systems. The processes are based on physico-chemical treatments which are performed at ambient temperatures and at low pH values thus keeping the total ammonia nitrogen concentrations below a value which is considered detrimental for the growth or survival rate of cultured fish/shrimp. 1. A process for removing ammonia from a saline water recirculated aquaculture system (RAS) while maintaining a total ammonia nitrogen (TAN) concentration in the water in said system between 15 and 50 mgN/L , the process comprising the steps of:a. maintaining the pH of the water in the RAS below 7.5 by adding an acid;b. extracting a portion of the water from the RAS;{'sub': '2', 'c. oxidizing the ammonia in the portion of the water to nitrogen gas by electrochemical treatment or by breakpoint chlorination in the presence of a solution comprising Clat concentrations required for attaining breakpoint chlorination;'}2. The process of claim 1 , further comprising the step of recycling at least some of the portion of the water obtained after step (c) back to the RAS.3. The process of claim 1 , wherein steps (b) and (c) are performed continuously.4. The process of claim 1 , wherein step (b) is performed continuously and step (c) is performed during low cost electricity hours.5. The process of claim 1 , wherein the solution comprising Clis generated in situ by electrooxidation of seawater.6. The process of claim 1 , wherein the acid is HSO.7. The process of claim 1 , further comprising adding a base during the electrolysis step.8. The process of claim 7 , wherein the base is selected from Ca(OH) claim 7 , CaO claim 7 , NaOH and KOH.9. The process of claim 1 , further comprising stripping of COwherein stripping of COcomprises the addition of pure oxygen or aeration.10. The process of claim 1 , wherein the recirculated aquaculture system (RAS) has a total ammonia nitrogen (TAN) ...

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17-02-2022 дата публикации

SYSTEMS AND METHODS FOR RECYCLING WASTE ION EXCHANGE MATERIALS

Номер: US20220048020A1
Принадлежит:

Embodiments of the present disclosure are directed to methods for recycling waste ion exchange materials comprising a first alkali metal salt and a second alkali metal salt comprising reducing the size of the waste ion exchange materials to produce a plurality of waste ion exchange particles having particle sizes from 0.10 mm to 5.0 mm, and regenerating the plurality of waste ion exchange particles to produce a plurality of regenerated ion exchange particles having a concentration of the first alkali metal salt greater than a concentration of the first alkali metal salt in the waste ion exchange materials. Systems for recycling a waste ion exchange materials comprising a first alkali metal salt and a second alkali metal salt are also disclosed. 1. A method for recycling waste ion exchange materials comprising a first alkali metal salt and a second alkali metal salt , the method comprising:reducing the size of the waste ion exchange materials to produce a plurality of waste ion exchange particles having particle sizes from 0.10 mm to 5.0 mm; andregenerating the plurality of waste ion exchange particles to produce a plurality of regenerated ion exchange particles having a concentration of the first alkali metal salt greater than a concentration of the first alkali metal salt in the waste ion exchange materials.2. The method of claim 1 , wherein the waste ion exchange materials comprise less than or equal to 95 wt. % of the first alkali metal salt based on the total weight of the waste ion exchange materials.3. The method of claim 1 , wherein the waste ion exchange materials comprise greater than or equal to 4 wt. % of the second alkali metal salt based on the total weight of the waste ion exchange materials.4. The method of claim 1 , wherein reducing the size of the waste ion exchange materials comprises introducing the waste ion exchange materials to a size reduction unit operable to crush the waste ion exchange materials.5. The method of claim 1 , wherein ...

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17-02-2022 дата публикации

Systems and methods for onsite sorbent material reuse

Номер: US20220048021A1

Methods, sorbent cartridges and cleaning devices are disclosed for refurbishing sorbent materials. In one implementation among multiple implementations, a medical fluid delivery method includes: providing a sorbent cartridge including H + ZP within a casing for a treatment; and after the treatment, refurbishing the H + ZP while maintained within the casing via (i) regenerating the non-disinfected H + ZP by flowing an acid solution through the casing, (ii) rinsing the regenerated H + ZP while maintained within the casing, (iii) disinfecting the regenerated and rinsed H + ZP by flowing a disinfecting agent through the casing, and (iv) rinsing the regenerated and disinfected H + ZP while maintained within the casing. Multiple batch sorbent refurbishing implementations are also disclosed.

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08-02-2018 дата публикации

WATER TREATMENT APPARATUS AND OPERATION METHOD FOR WATER TREATMENT APPARATUS

Номер: US20180037477A1
Принадлежит:

A water treatment apparatus of the present disclosure includes an electrochemical cell provided with an inlet and an outlet, a power supply that supplies electric power to electrodes, a first water flow path connected with the inlet, a second water flow path connected with the outlet, a soft water supply unit that feeds soft water to the inlet, and a flow adjustor that regulates a flow rate of water passing through the second water flow path. The water treatment apparatus further includes a controller that controls electric power supplied from the power supply to the electrodes, the flow rate of water passing through the second water flow path by use of the flow adjustor, and soft water fed to the inlet by use of the soft water supply unit when a process for regenerating the electrochemical cell is executed. As a result, the apparatus can reduce the hardness and electric conductivity of water fed into the electrochemical cell during regeneration of an ion exchange membrane and restrain scale formation. 1. A water treatment apparatus comprising: a casing provided with an inlet and an outlet,', 'a pair of electrodes disposed in the casing, the electrodes forming an anode and a cathode opposing each other, and', 'an ion exchange membrane disposed between the anode and the cathode, the ion exchange membrane including a cation exchange substrate and an anion exchange substrate;, 'an electrochemical cell including'}a power supply that supplies electric power to the electrodes;a first water flow path connected with the inlet;a second water flow path connected with the outlet;a soft water supply unit that feeds soft water to the inlet;a flow adjustor that is provided on the second water flow path and regulates a flow rate of water passing through the second water flow path;a controller that controls electric power supplied from the power supply to the electrodes, the flow rate of water passing through the second water flow path by use of the flow adjustor, and the soft ...

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24-02-2022 дата публикации

Sustainable System and Method for Removing and Concentrating Per- and Polyfluoroalkyl Substances (PFAS) from Water

Номер: US20220055923A1
Принадлежит:

A sustainable system for removing and concentrating per- and polyfluoroalkyl substances (PFAS) from water. The system includes an anion exchange vessel having a selected anion exchange resin therein configured to remove PFAS from the water. A line coupled to the vessel introduces a flow of water contaminated with PFAS such that the PFAS bind to the selected anion exchange resin and are thereby removed from the water. A regenerant solution line is coupled to the anion exchange vessel to introduce an optimized regenerant solution to the anion exchange vessel to remove the PFAS from the anion exchange resin, thereby regenerating the anion exchange resin and generating a spent regenerate solution comprised of the removed PFAS and the optimized regenerant solution. A separation and recovery subsystem recovers the optimized regenerant solution for reuse and separates and concentrates the removed PFAS. 1. A system for reducing an amount of a toxic spent regenerant solution produced by a system which removes per- and polyfluoroalkyl substances (PFAS) from contaminated water , the system comprising:a concentration subsystem configured to separate and concentrate the PFAS in the contaminated water to produce the toxic spent regenerant solution; anda separation and recovery subsystem configured to receive the toxic spent regenerant solution, the separation and recovery subsystem including at least one of a distillation subsystem, an evaporation subsystem, or a membrane separation subsystem, at least one of the distillation subsystem, the evaporation subsystem, or the membrane separation subsystem configured to concentrate the PFAS, water, and salt in the toxic spent regenerant solution to reduce the amount of toxic spent regenerant solution.2. The system of in which the concentration subsystem includes an anion exchange vessel including an anion exchange resin therein configured to receive a flow of the contaminated water such that the PFAS in the contaminated water bind to ...

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07-02-2019 дата публикации

Novel Modified Acid Compositions as Alternatives to Conventional Acids in the Oil and Gas Industry

Номер: US20190040298A1
Принадлежит:

An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids. 1. An aqueous modified acid composition comprising:a mineral acid and an alkanolamine in a molar ratio of not more than 15:1.2. A aqueous modified acid composition comprising:hydrochloric acid and an alkanolamine in a molar ratio of not more than 15:1.3. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.4. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.5. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.6. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not less than 3:1.7. The aqueous modified acid composition according to any one of to claim 2 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.8. The aqueous modified acid composition according to any one of to claim 2 , wherein the alkanolamine is monoethanolamine.9. The aqueous modified acid composition according to any one of to claim 2 , wherein the alkanolamine is diethanolamine.10. The aqueous modified acid composition according to any one of to claim 2 , further comprising a metal iodide or iodate.11. The composition according to claim 1 , wherein the mineral acid is selected from the group consisting of: HCl claim 1 , nitric acid claim 1 , sulfuric acid claim 1 , ...

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18-02-2021 дата публикации

Method of Converting a Brominated Hydrocarbon to a Chlorinated Hydrocarbon

Номер: US20210047250A1
Автор: Sherwood Scott A.
Принадлежит:

The present invention provides a method of converting a brominated hydrocarbon to a chlorinated hydrocarbon that involves contacting together the brominated hydrocarbon and a chlorinated ion exchange resin that has a water content of less than or equal to 30 percent by weight, based on the total weight of the chlorinated ion exchange resin and the water. The brominated hydrocarbon includes at least one replaceable bromo group, where each replaceable bromo group is independently covalently bonded to an sphybridized carbon. Contact between the brominated hydrocarbon and the chlorinated ion exchange resin results in replacement of at least one replaceable bromo group of the brominated hydrocarbon with a chloro group, and correspondingly conversion of at least a portion of the brominated hydrocarbon to the chlorinated hydrocarbon. 1. A method of converting a brominated hydrocarbon to a chlorinated hydrocarbon comprising:{'sup': '3', '(a) providing said brominated hydrocarbon, wherein said brominated hydrocarbon comprises at least one replaceable bromo group, wherein each replaceable bromo group is independently covalently bonded to a sphybridized carbon;'}(b) contacting together said brominated hydrocarbon and an ion exchange resin comprising chloride groups, wherein said ion exchange resin comprises water in an amount of less than or equal to 30 percent by weight, based on the total weight of said ion exchange resin and water, thereby replacing at least one replaceable bromo group of said brominated hydrocarbon with a chloro group, and converting at least a portion of said brominated hydrocarbon to said chlorinated hydrocarbon; and(c) isolating said chlorinated hydrocarbon from said ion exchange resin.2. The method of wherein claim 1 , said ion exchange resin has a molar equivalents of chloride groups claim 1 , said brominated hydrocarbon has a molar equivalents of replaceable bromo groups claim 1 , and a ratio of said molar equivalents of chloride groups of said ion ...

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06-02-2020 дата публикации

Liquid Treatment System

Номер: US20200041478A1
Автор: Bowden Harvey
Принадлежит:

The present invention relates to a liquid treatment system having a sensor comprising a body, the body having a sensing material disposed therein, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough; an actuating means disposed within the body and associated with the sensing material; wherein the actuating means is movable between a first position and a second position in response to the change in size of the sensing material to thereby mechanically actuate a switch member, such that when the actuating means is in the first position, flow of an actuating stream of the liquid is allowed by the switch member to thereby hydraulically actuate operation of the liquid treatment system; and when the actuating means is in the second position, flow of the actuating stream of the liquid is prevented by the switch member. 1. A liquid treatment system , comprising:a liquid treatment tank;a sensing material disposed within the liquid treatment tank, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough;an actuating means associated with the sensing material;wherein the actuating means is movable between a first position and a second position in response to the change in size of the sensing material to thereby mechanically control operation of an actuating stream outlet, such that when the actuating means is in the first position, flow of an actuating stream of the liquid via the actuating stream outlet is allowed to thereby hydraulically actuate operation of the liquid treatment system; and when the actuating means is in the second position, flow of the actuating stream of the liquid via the actuating stream outlet is prevented.2. The liquid treatment system according to claim 1 , further comprising a switch member operable with the actuating means; wherein the switch member is adapted to open the actuating stream outlet thereby allowing flow of the ...

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19-02-2015 дата публикации

WATER SOFTENING COMPOSITIONS AND METHODS

Номер: US20150048029A1
Принадлежит:

Novel water softening products and methods of treating hard water are provided. The products comprise a salt and a metal chelating agent. The products are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions, while having dramatically increased efficiencies over prior art products. 1. A method of increasing the efficiency of a salt at treating water , the method comprising contacting an ion exchange material with an aqueous solution or dispersion comprising the salt and a metal chelating agent to yield a regenerated ion exchange material , wherein , during said contact , at least about 50% more metal ions are removed than under the same conditions but in the absence of said metal chelating agent.2. The method of claim 1 , wherein said metal chelating agent is present in said aqueous solution or dispersion at levels of less than about 75 ppm claim 1 , based on the salt.3. The method of claim 1 , wherein said metal chelating agent is selected from the group consisting of sodium citrate claim 1 , potassium citrate claim 1 , sodium succinate claim 1 , potassium succinate claim 1 , aspartate claim 1 , maleate claim 1 , ethylenediamine tetraacetate claim 1 , ethylene glycol tetraacetate claim 1 , polyacrylate claim 1 , polymaleate claim 1 , polymerized amino acids claim 1 , 1 claim 1 ,2-bis(o-aminophenoxy)ethane-N claim 1 ,N claim 1 ,N′ claim 1 ,N′-tetraacetate claim 1 , sulfonated polycarboxylate copolymers claim 1 , and polymethacrylate.4. The method of claim 2 , wherein said metal chelating agent is selected from the group consisting of sodium citrate claim 2 , potassium citrate claim 2 , sodium succinate claim 2 , potassium succinate claim 2 , aspartate claim 2 , maleate claim 2 , ethylenediamine tetraacetate claim 2 , ethylene glycol tetraacetate claim 2 , polyacrylate claim 2 , polymaleate claim 2 , polymerized amino acids claim 2 , 1 claim 2 ,2-bis(o-aminophenoxy)ethane-N ...

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22-02-2018 дата публикации

ION EXCHANGE RESIN TRANSPORATION AND STORAGE

Номер: US20180050337A1
Принадлежит:

A method of stabilizing virgin ion exchange resin material is provided. The method includes rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel and hermetically sealing the vessel. A vessel containing deoxygenated water and virgin ion exchange resin material is also provided. A method of facilitating water treatment in a site in need thereof by providing the gas impermeable vessel containing virgin ion exchange resin material and residual moisture from deoxygenated water is also provided. 1. A method of stabilizing virgin ion exchange resin material , the method comprising:rinsing the virgin ion exchange resin material with deoxygenated water to produce a rinsed virgin ion exchange resin material;introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel; andhermetically sealing the vessel.2. The method of claim 1 , wherein rinsing the virgin ion exchange resin material comprises rinsing with deoxygenated water having a concentration of dissolved oxygen of less than about 10 ppb.3. The method of claim 2 , wherein rinsing the virgin ion exchange resin material comprises rinsing with deoxygenated water having a concentration of dissolved chlorine of less than about 10 ppb.4. The method of claim 1 , wherein rinsing the virgin ion exchange resin material comprises introducing deoxygenated water into the gas impermeable vessel and removing interstitial deoxygenated water from the vessel.5. The method of claim 1 , comprising maintaining between about 40% to about 50% moisture content in the rinsed virgin ion exchange resin material.6. The method of claim 1 , further comprising producing the deoxygenated water by deoxygenating non-deoxygenated water.7. The method of claim 6 , comprising deoxygenating the non-deoxygenated water by one of passing the non-deoxygenated water through a deoxygenation membrane and subjecting the non-deoxygenated ...

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22-02-2018 дата публикации

Methods of Removing Perchlorate from Water and Vessels and Systems for Practicing the Same

Номер: US20180050932A1
Автор: COLINAS Ian, Oliver Scott

Provided are methods of removing perchlorate from water. The methods include contacting water suspected of containing perchlorate with a cationic material. The cationic material includes one or more cationic metal atoms connected by an atom or molecule into an extended structure, and a charge balancing anion. The contacting removes perchlorate (e.g., selectively), if present, from the water. Water treatment vessels, systems and facilities that find use in practicing the methods of the present disclosure are also provided. 1. A method of removing perchlorate from water , comprising:contacting water suspected of containing perchlorate with a cationic material, wherein the cationic material comprises:one or more cationic metal atoms connected by an atom or molecule into an extended structure; anda charge balancing anion,to remove perchlorate, if present, from the water.2. The method according to claim 1 , wherein the material is a metal-organic framework (MOF) material.3. The method according to claim 2 , wherein the MOF material is a one-dimensional MOF material.4. The method according to claim 2 , wherein the MOF material is a two-dimensional MOF material.5. The method according to claim 2 , wherein the MOF material is a three-dimensional MOF material.6. The method according to any one of to claim 2 , wherein the one or more cationic metal atoms comprises a cationic metal atom selected from the group consisting of: a transition d-block metal atom claim 2 , a rare earth f-block metal atom claim 2 , a main group p-block metal atom claim 2 , and an s-block alkali or alkaline earth metal atom.7. The method according to any one of to claim 2 , wherein the one or more cationic metal atoms comprises a Group 11 metal atom selected from the group consisting of: Ag claim 2 , Cu claim 2 , and Au.8. The method according to claim 7 , wherein the Group 11 metal atom is Ag(I).9. The method according to any one of to claim 7 , wherein the atom or molecule is an organic ligand.10. ...

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13-02-2020 дата публикации

Method of Initiating A Liquid Treatment Process In A Liquid Treatment System

Номер: US20200049684A1
Автор: Bowden Harvey
Принадлежит:

A method of initiating a liquid treatment process, comprising steps of: providing a sensing material inside a liquid treatment tank, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough; arranging an actuating means in association with the sensing material, the actuating means being movable in response to the change in size of the sensing material; and allowing flow of an actuating stream of the liquid in response to a mechanical movement of the actuating means to thereby hydraulically actuate operation of the liquid treatment system. 1. A method of initiating a liquid treatment process , comprising steps of:providing a sensing material inside a liquid treatment tank, the sensing material being subject to a change in size in response to a composition of a liquid flowing therethrough;arranging an actuating means in association with the sensing material, the actuating means being movable in response to the change in size of the sensing material; andallowing flow of an actuating stream of the liquid in response to a mechanical movement of the actuating means to thereby hydraulically actuate operation of the liquid treatment system.2. The method according to claim 1 , wherein the sensing material and the actuating means are provided as a sensing device claim 1 , the sensing device having a body with the sensing material and the actuating means disposed therein claim 1 , wherein the actuating means moved between a first position and a second position in response to the change in size of the sensing material to thereby mechanically actuate a switch member claim 1 , such that when the actuating means is in the first position claim 1 , flow of the actuating stream of the liquid is allowed by the switch member to thereby hydraulically actuate operation of the liquid treatment system; and when the actuating means is in the second position claim 1 , flow of the actuating stream of the liquid is prevented by the ...

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15-05-2014 дата публикации

Continuously flowing, inner circulatory, quasi-fluidized-bed reactor for resin ion exchange and adsorption

Номер: US20140131261A1

A continuously flowing, inner circulatory, quasi-fluidized-bed reactor for resin ion exchange and adsorption. The reactor comprises a main body casing, an inclined pipe separator, an outlet weir, an inlet pipe, an outlet pipe, a reducing fluidization tank, a guide plate, a resin regeneration tank, a resin discharge pipe, and a return pipe for regenerated resin and a distributing ejector. The reactor is particularly suitable for advanced treatment of supply water, wastewater, biochemical effluent and reclaimed water by using (magnetic) powder resin.

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10-03-2022 дата публикации

Sustainable System and Method for Removing and Concentrating Per- and Polyfluoroalkyl Substances (PFAS) from Water

Номер: US20220073379A1
Принадлежит:

A solvent purification system for removing carryover per- and polyfluoroalkyl substances (PFAS) from a reclaimed solvent for reuse having carryover PFAS therein. The system includes a solvent purification subsystem coupled to a separation and recovery subsystem configured to receive the reclaimed solvent for reuse having carryover PFAS therein. The solvent purification system includes an anion exchange resin housed in a vessel configured to remove the carryover PFAS to provide a purified, reclaimed solvent for reuse. 1. A solvent purification system for removing carryover per- and polyfluoroalkyl substances (PFAS) from a reclaimed solvent for reuse having carryover PFAS therein , the system comprising:a solvent purification subsystem coupled to a separation and recovery subsystem, the solvent purification subsystem configured to receive the reclaimed solvent for reuse having carryover PFAS therein, the solvent purification system including an anion exchange resin housed in a vessel configured to remove the carryover PFAS to provide a purified, reclaimed solvent for reuse.2. A solvent purification method for removing carryover per- and polyfluoroalkyl substances (PFAS) from a reclaimed solvent for reuse having carryover PFAS therein , the method comprising:receiving the reclaimed solvent for reuse having carryover PFAS therein; andremoving the carryover PFAS with an additional anion exchange resin configured to remove the carryover PFAS to provide a purified, reclaimed alcohol solvent for reuse. This application is a continuation of U.S. patent application Ser. No. 16/861,721 filed Apr. 29, 2020, and hereby claims benefit of and priority thereto under 35 U.S.C. §§ 119, 120, 363, 365, and 37 C.F.R. § 1.55 and § 1.78, which is incorporated herein by reference, and is a continuation of U.S. patent application Ser. No. 16/410,223 filed May 13, 2019 (now U.S. Pat. No. 11,027,988 issued Jun. 8, 2021), and hereby claims benefit of and priority thereto under 35 U.S.C. §§ 119 ...

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03-03-2016 дата публикации

Semiconductor-oxides nanotubes-based composite particles useful for dye-removal and process thereof

Номер: US20160059228A1

Semiconductor-oxide nanotubes-based composite particles are useful for dye-removal. A method involves an ion-exchange mechanism operating under a dark-condition in an aqueous solution, for the processing of products consisting of the nanotubes of semiconductor-oxides deposited on, anchored to or attached to the surface of fly ash particles and metal-oxide (magnetic and non-magnetic) nanoparticles. The resulting micro-nano and nano-nano integrated composite particles can be used in the removal of an organic synthetic-dye from an aqueous solution and industry effluent via a surface-adsorption process, involving ion-exchange and electrostatic-attraction mechanisms. The composite particles can be recycled for the next cycle of dye-adsorption by decomposing the previously adsorbed dye on their surfaces via the use of either noble-metal-deposited or magnetically separable magnetic photocatalysts and exposure to ultraviolet (UV) or solar-radiation.

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21-02-2019 дата публикации

METHOD FOR CHROMATOGRAPHY REUSE

Номер: US20190054396A1
Принадлежит:

The present invention provides methods for cleaning or regenerating a chromatography materiel for reuse. The methods of the invention can be used for cleaning or regenerating chromatography columns for reuse in the large-scale manufacture of multiple polypeptide products. 1. A method to clean a chromatography material for reuse , the method comprising the steps ofa) passing two or more material volumes of elution buffer through the material, wherein the elution buffer comprises about 0.15 M acetic acid and is about pH 2.9;b) statically holding the material in elution buffer for a time ranging from about 10 minutes to about 30 minutes;c) passing about two or more material volumes of elution buffer through the material; andd) passing about two or more material volumes of regeneration buffer through the material, wherein the regeneration buffer comprises about 0.1 N NaOH and is about pH 13.2. A method to clean a chromatography material for reuse , the method comprising the steps ofa) passing about two material volumes of elution buffer through the material, wherein the elution buffer comprises about 0.15 M acetic acid and is about pH 2.9;b) statically holding the material in elution buffer for about 30 minutes;c) passing about two material volumes of elution buffer through the material; andd) passing about four material volumes of regeneration buffer through the material, wherein the regeneration buffer comprises about 0.1 N NaOH and is about pH 13.3. A method to clean a chromatography material for reuse , the method comprising the steps ofa) passing about two material volumes of elution buffer through the material, wherein the elution buffer comprises about 0.15 M acetic acid and is about pH 2.9,b) statically holding the material in elution buffer for about 30 minutes,c) passing about two material volumes of elution buffer through the material, andd) passing about two and one-half material volumes of regeneration buffer through the material, wherein the regeneration ...

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21-02-2019 дата публикации

Composite Extractant-Enhanced Polymer Resin, Method of Making the Same, and Its Usage for Extraction of Valuable Metal(s)

Номер: US20190054457A1
Принадлежит:

A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, from an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of rare earth metals from acid-leaching slurries or solutions. 1. A composite comprising an extractant and a polymer resin.2. The composite of claim 1 , wherein the extractant is one of cationic claim 1 , non-ionic claim 1 , and anionic or a combination thereof.3. The composite of claim 1 , wherein the polymer resin comprises one of a non-functional polymer or a functional polymer.4. The composite of claim 1 , wherein the extractant comprises a cation extractant having at least one functional group selected from organophosphorus acids claim 1 , carboxylic acids claim 1 , and sulfonic acids.5. The composite of claim 1 , wherein the extractant comprises an anionic extractant having at least one amine functional group.6. The composite of claim 1 , wherein the extractant comprises at least one of di(2ethylhexyl)phosphoric acid (DEHPA) claim 1 , 2-ethyl-hexyl-2-ethyl-hexyl-phosphoric acid claim 1 , tri-butyl phosphate claim 1 , versatic acid claim 1 , and versavic 10.7. The composite of claim 1 , wherein the polymer resin comprises a porous non-functional polymer resin.8. The composite of claim 1 , wherein the polymer resin comprises at least one functional group selected from phosphoric acid groups claim 1 , sulfonic acid groups claim 1 , carboxylic acid groups claim 1 , iminodiacetic acid claim 1 , and ...

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04-03-2021 дата публикации

SYSTEMS AND METHODS FOR SELECTIVE RECOVERY OF METALS FROM ION EXCHANGE RESINS

Номер: US20210062296A1
Принадлежит:

Systems and methods for selectively recovering a target metal from an ion exchange resin are generally described. In certain embodiments, such methods and systems can be employed for metal purification and enrichment of target metal species from mixtures containing contaminating or non-target metals. In some embodiments, ion exchange is accomplished in the presence of one or more species that facilitate the recovery of a metal from a composition further comprising one or more other metals. The recovered metal-containing composition may contain the recovered metal at relatively high purity and/or in relatively large amounts. In some embodiments, the conditions present during ion exchange are varied in a manner that facilitates the enrichment of a metal from an initial (e.g. sample) composition further comprising one or more other metals to result in a product that contains the enriched metal at relatively high purity and/or in relatively large amounts 1. A method of selectively recovering a first metal from an ion exchange resin , comprising:{'sup': −5', '4, 'contacting a non-polar fluid and an extractant with the ion exchange resin, the first metal, and a second metal, wherein at least one of the first metal and the second metal are bound to the ion exchange resin, wherein the ion exchange resin comprises a plurality of functional groups having a proton dissociation constant of greater than or equal to 10and less than or equal to 10; and'}selectively eluting the first metal from the ion exchange resin into the non-polar fluid such that a ratio of the first metal to the second metal in the non-polar fluid is greater than a ratio of the first metal to the second metal bound to the ion exchange resin.2. The method of claim 1 , wherein contacting step comprises introducing the non-polar fluid and the extractant into a column containing the ion exchange resin claim 1 , the first metal claim 1 , and the second metal claim 1 , wherein at least one of the first metal and ...

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07-03-2019 дата публикации

METHOD OF PURIFYING WATER

Номер: US20190070600A1
Принадлежит:

Provided is a method of regenerating an acrylic resin (B2), comprising 1. A method of regenerating an acrylic resin (B2) , comprising(A) providing a collection of particles of acrylic resin (B2) that has calculated Hansch parameter of −1.0 to 2.5, wherein one or more humic acid, one or more fulvic acid, or a mixture thereof, is adsorbed onto said acrylic resin (B2), and(B) bringing said collection of particles of acrylic resin (B2) into contact with an aqueous solution (RA) having pH of 4 or lower, to form a mixture B2RA,(C) then separating acrylic resin (B3) from said mixture B2RA.2. The method of claim 1 , wherein said aqueous solution (RA) has pH of 1 or lower. It is often desired to purify water. For example, water from natural sources often contains undesirably high levels of dissolved organic compounds. Some of such compounds are humic acids and fulvic acids. It is often desirable to remove some or all of the dissolved organic compounds from the water. In the past, strong base ion exchange resins have been used for removing humic acids and fulvic acids from water. Strong base ion exchange resins, however, have the drawback that they are relatively difficult to regenerate.Cornelissen et al., in , vol. 42 (2008) pages 413-423, tested a variety of ion exchange resins for their ability to remove humic substances; they tested only one weak base resin, and they reported that the weak base resin was ineffective at removing humic substances. It is desired to provide a method of removing dissolved organic compounds from water without the drawbacks of strong base ion exchange resins.The following is a statement of the invention.The first aspect of the present invention is a method of purifying water comprisingA second aspect of the present invention is a method of regenerating an acrylic resin (B2), comprisingA third aspect of the present invention is a method of regenerating an acrylic resin (B2), comprisingThe following is a detailed description of the invention.As ...

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05-03-2020 дата публикации

STERILE CHROMATOGRAPHY RESIN AND USE THEREOF IN MANUFACTURING PROCESSES

Номер: US20200069822A1
Автор: Patil Rohan, Varner Chad
Принадлежит: Genzyme Corporation

Provided herein are methods of reducing bioburden of a chromatography resin that include exposing a container including a composition including (i) a chromatography resin and (ii) a liquid including at least on alcohol to a dose of gamma-irradiation sufficient to reduce the bioburden of the container and the chromatography resin, where the at least one alcohol are present in an amount sufficient to ameliorate the loss of binding capacity of the chromatography resin after/upon exposure to the dose of gamma-irradiation. Also provided are reduced bioburden chromatography columns including the reduced bioburden chromatography resin, compositions including a chromatography resin and a liquid including at least one alcohol, methods of performing reduced bioburden column chromatography using one of these reduced bioburden chromatography columns, and integrated, closed, and continuous processes for reduced bioburden manufacturing of a purified recombinant protein. 1. A method of reducing bioburden of a chromatography resin comprising: exposing a container comprising a composition comprising (i) a chromatography resin and (i) a liquid comprising at least one alcohol , to a dose of gamma-irradiation sufficient to reduce the bioburden of the container and the chromatography resin , wherein the at least one alcohol is present in an amount sufficient to ameliorate the loss of binding capacity of the chromatography resin after exposure to the dose of gamma-irradiation.2. (canceled)3. The method of claim 1 , wherein the container is a storage vessel.4. The method of claim 1 , wherein the container is a chromatography column.5. The method of claim 1 , wherein the container is a packed chromatography column.6. The method of claim 1 , wherein the composition is a slurry of sedimented chromatography resin.7. (canceled)8. The method of claim 1 , wherein the at least one alcohol is selected from the group of: benzyl alcohol claim 1 , cyclohexanol claim 1 , isobutyl alcohol claim 1 , 2- ...

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24-03-2022 дата публикации

Forming drilling fluid from produced water

Номер: US20220089931A1
Принадлежит: Saudi Arabian Oil Co

A system and method for generating water concentrated in calcium bromide from produced water, to provide for drilling fluid having the calcium bromide. The technique includes flowing the produced water through a bed of ion-exchange resin to sorb bromide ions from the produced water onto the ion-exchange resin, and then regenerating the ion-exchange resin to desorb the bromide ions for combination with calcium ions to acquire an aqueous solution with calcium and bromide.

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05-03-2020 дата публикации

System and Method for Restoring Kinetic Properties of Resin

Номер: US20200070143A1
Автор: Miller Thomas O.
Принадлежит:

A system and method configured to restore ion exchange kinetic properties and purify resin is described. Degraded ion exchange kinetic properties of anion resin will eventually result in impurity slippage through resin charges. This system and method employs an acid catalyst in combination with sulfite cleaning solution to remove organic material and to protonate iron oxides for deconstruction and removal from anion resins. The cleaning solution, when applied via a cleaning vessel utilizing an eductor(s)/plenum and wedge-wire screen draw chamber, while controlling all phases of cleaning by electronic monitoring, yields complete restoration of ion exchange kinetics on usable resin. As such, the system and method provides a safe, effective, and vastly improved method for restoring anion resin kinetics and improving regeneration quality, for improved resin performance and minimizing resin replacement costs. 1. A cleaning system configured to clean and regenerate kinetic and ion exchange properties of resin comprising:a vessel, said vessel equipped with a bottom having at least one sloped side for downward channeling of resins, at least one solution inlet, at least one waste outlet, at least one resin inlet, and at least one resin outlet;a separation screen draw chamber, said separation screen draw chamber disposed within said vessel inside said bottom of said vessel;wherein said separation screen draw chamber creates sloping sides inside said vessel;at least one eductor;a plenum, said plenum discharging from said at least one eductor ata top of said vessel;wherein said plenum is disposed in communication with said at least one eductor;an electronic monitoring and control system, said electronic monitoring and control system in communication with a data integrator having real-time monitoring capabilities, a programmable logic controller (PLC), and at least one sensor;wherein said at least one sensor is disposed on at least one interior side of said vessel;a first fouled ...

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07-03-2019 дата публикации

Ejector of a water softener valve, water softener valve, and water softener

Номер: US20190072199A1
Автор: Guohua Liu, Zhifeng He

Disclosed is an ejector of a water softener valve, a water softener valve and a water softener. The ejector includes: an ejecting part, the ejecting part internally defines an ejecting hole, the ejecting hole is gradually tapered along an ejecting direction; a confluence part, the confluence part internally defines a confluence hole, an inlet of the confluence hole faces an outlet of the ejecting hole, an aperture of the inlet of the confluence hole is greater than an aperture of the outlet of the ejecting hole, a surface of the confluence part and a surface of the ejecting part facing the surface of the confluence part cooperatively form a saline solution suction opening; and a connecting part, fixedly connected with the ejecting part and the confluence part, the connecting part, the ejecting part, and the confluence part are integrated together.

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14-03-2019 дата публикации

Processes for the recovery of uranium from wet-process phosphoric acid using dual or single cycle continuous ion exchange approaches

Номер: US20190078176A1
Принадлежит: K Technologies Inc, OCP SA

In alternative embodiments, the invention provides processes and methods for the recovery, removal or extracting of, and subsequent purification of uranium from a wet-process phosphoric acid using a continuous ion exchange processing approach, where the uranium is recovered from a phosphoric acid, or a phos-acid feedstock using either a dual or a single stage extraction methodology. In both cases an intermediate ammonium uranyl-tricarbonate solution is formed. In alternative embodiments, in the dual cycle approach, this solution is contacted in a second continuous ion exchange system with a strong anion exchange resin then subsequently recovered as an acidic uranyl solution that is further treated to produce an intermediate uranyl peroxide compound which is ultimately calcined to produce the final uranium oxide product. In alternative embodiments, in the single cycle case, the intermediate ammonium uranyl-tricarbonate solution is evaporated to decompose the ammonium carbonate and produce an intermediate uranium carbonate/oxide solid material. These solids are digested in an acid medium, and then processed in the same manner as the secondary regeneration solution from the dual cycle process to produce an intermediate uranyl peroxide that is calcined to produce a final uranium oxide product.

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31-03-2022 дата публикации

Method for Bleaching Sugar With Effluent Recycling

Номер: US20220098684A1
Принадлежит: Novasep Process Solutions SAS

The invention relates to a method for treating sugar comprising: placing a coloured sugar juice in contact with an ion exchange resin so as to charge the resin with colouring agents and to collect a bleached sugar juice; regenerating the colouring-charged resin, comprising: placing the charged resin in contact with a regeneration brine comprising a chloride salt; and collecting a regeneration effluent, the regeneration effluent comprising at least three fractions A, B and C, fraction A having a higher concentration of chloride salt than fractions B and C; and recycling the regeneration effluent, comprising: nanofiltration of fraction A of the regeneration effluent in order to obtain a first permeate and a first retentate; diafiltration of the first retentate, said diafiltration comprising: dilution of the first retentate with the fraction B of the regeneration effluent; nanofiltration of the mixture in order to obtain a second permeate and a second retentate; mixing of the first permeate with the second permeate and fraction C of the regeneration effluent,

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19-06-2014 дата публикации

WATER TREATMENT SYSTEM AND METHOD

Номер: US20140166582A1
Автор: Strain Peter
Принадлежит:

Embodiments of a water treatment system, a water treatment method, and an ozone kit for a water treatment system are provided. The water treatment system includes an ozone gas source; a regenerating fluid source; a water tank; a manifold having a first port in fluid communication with the regenerating fluid source, a second port in fluid communication with an outlet of the ozone gas source, and a third port in fluid communication with the water tank via a venturi nozzle; and a control system configured to: cause regenerating fluid to be drawn through the venturi nozzle into the water tank; and cause ozone gas to be drawn through the venturi nozzle into the water tank. 1. A water treatment system comprising:an ozone gas source;a regenerating fluid source;a water tank;a manifold having a first port in fluid communication with the regenerating fluid source, a second port in fluid communication with an outlet of the ozone gas source, and a third port in fluid communication with the water tank via a venturi nozzle; and cause regenerating fluid to be drawn through the venturi nozzle into the water tank; and', 'cause ozone gas to be drawn through the venturi nozzle into the water tank., 'a control system configured to2. The water treatment system of claim 1 , wherein the regenerating fluid is brine.3. The system of claim 1 , wherein the ozone gas drawn into the water tank forms a layer of ozone gas at the top of the water tank.4. The system of claim 1 , wherein the control system is further configured to cause regenerating fluid from the first port and ozone gas from the second port to be drawn through the venturi nozzle separately.5. The system of claim 1 , wherein the control system is further configured to direct the ozone gas source to begin and end releasing ozone gas for conveying out of the outlet towards the second port.6. The system of claim 5 , wherein the control system is further configured to direct the ozone gas source to begin and end producing ozone gas for ...

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02-04-2015 дата публикации

Method for chromatography reuse

Номер: US20150093800A1
Принадлежит: Genentech Inc

The present invention provides methods for cleaning or regenerating a chromatography materiel for reuse. The methods of the invention can be used for cleaning or regenerating chromatography columns for reuse in the large-scale manufacture of multiple polypeptide products.

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30-03-2017 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20170088442A1
Принадлежит:

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A system employing an ion exchange resin regenerated by an acid comprising:an inlet for providing a water source;a water treatment reservoir;a water treatment component housed within the water treatment reservoir, wherein said water treatment component comprises at least one ion exchange resin capable of generating a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, and wherein said ion exchange resin is an acid form or in an inert metal form;an outlet;a water delivery line in fluid communication with a cleaning application and/or storage reservoir to provide the treated water source to the cleaning application and/or storage reservoir; anda storage reservoir housing an acid salt regenerant and a regenerant delivery line fluidly connected to the water treatment reservoir to deliver the regenerant to the ion exchange resin;wherein the inlet is in fluid communication with the water treatment reservoir;wherein a first end of the outlet is in fluid communication with the water treatment reservoir and a second end is in fluid communication with the water delivery line;wherein the treated water source meets a defined water specification, and wherein the specification is a softened, acidic water having total dissolved solids (TDS) ...

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19-03-2020 дата публикации

RECHARGE SOLUTION FOR ZIRCONIUM OXIDE

Номер: US20200086309A1
Принадлежит:

The invention relates to devices, systems, and methods for mixing one or more solutions to generate a recharge solution having specified concentrations of hydroxide and free chlorine for recharging and disinfecting zirconium oxide in reusable sorbent modules. The devices, systems, and methods can generate a recharge solution by a sorbent recharger that is introduced through the sorbent module to recharge the zirconium oxide. 1. A system , comprising:a sorbent recharger having a recharging flow path comprising at least one receiving compartment for a zirconium oxide sorbent module; the at least one receiving compartment comprising a zirconium oxide module inlet and a zirconium oxide module outlet;at least one recharge solution source; the at least one recharge solution source comprising a hydroxyl source and a free chlorine source fluidly connectable to the recharging flow path; anda controller controlling at least one pump to introduce fluid from the at least one recharge solution source to the zirconium oxide sorbent module.2. The system of claim 1 , wherein the hydroxyl source is a sodium hydroxide claim 1 , a lithium hydroxide claim 1 , or a potassium hydroxide claim 1 , and wherein the free chlorine source is a sodium hypochlorite claim 1 , potassium hypochlorite claim 1 , trichloroisocyanuric acid claim 1 , or chloramine source.3. The system of claim 1 , further comprising a mixer fluidly connected to the recharging flow path upstream of the zirconium oxide module inlet.4. The system of claim 1 , wherein the at least one recharge solution source comprises a concentrated source of hydroxide and free chlorine;wherein the recharging flow path is fluidly connectable to a water source upstream of the zirconium oxide module inlet; andwherein the controller controls a flow rate of hydroxide and free chlorine and a flow rate of water to generate a recharge solution having a specified concentration of hydroxide and free chlorine.5. The system of claim 1 , wherein the at ...

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26-06-2014 дата публикации

Treatment of water to extend half-life of ozone

Номер: US20140175017A1
Принадлежит: Tersano Inc

A system for providing an acidic ionized ozonated liquid. The system includes a liquid inlet arranged to accept a liquid into the system; an acid-based cation-exchange resin in fluid communication with the liquid inlet, the resin adapted to exchange cations in the accepted liquid with H+ ions on the resin; an ozone dissolving apparatus in fluid communication with the liquid inlet and the acid-based cation-exchange resin; and a liquid outlet in fluid communication with the liquid inlet, the acid-based cation-exchange resin and the ozone dissolving apparatus. The ozone dissolving apparatus and the acid-based cation-exchange resin cooperating to produce the acidic ionized ozonated liquid for dispensation out of the system via the liquid outlet.

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12-04-2018 дата публикации

STRONG BASIC POLYACRYLATE ANION EXCHANGERS

Номер: US20180099269A1
Принадлежит:

The present invention relates to quaternized diethylenetriamine-functionalized polyacrylate bead polymers, to a process for preparing same and to their use in the removal of oxoanions, particularly chromium (VI) oxoanions from aqueous- and/or organics solutions. 1. Quaternized diethylenetriamine-functionalized polyacrylate bead polymers comprising a bead of cross-linked polyacrylate polymer functionalized with diethylenetriamine , wherein the cross-linked polyacrylate polyacrylate polymer are prepared from a monomer mixture comprising an acrylic monomer fraction greater than 70 wt % relative to the total amount of monomers.2. The quaternized diethylenetriamine-functionalized polyacrylate bead polymers according to claim 1 , wherein the polyacrylate bead polymer is prepared on the basis of an acrylic monomer fraction greater than 95 wt % relative to the total amount of monomers.3. The quaternized diethylenetriamine-functionalized polyacrylate bead polymers according to claim 1 , wherein the quaternized diethylenetriamine-functionalized polyacrylate bead polymer comprises basic groups claim 1 , and 70% to 90% of the basic groups are quaternized groups.4. A process for preparing the quaternized diethylenetriamine-functionalized polyacrylate bead polymers according to claim 1 , the process comprising:a) reacting a monomer mixture formed of at least one acrylic monomer and at least one multifunctionally ethylenically unsaturated compound, and also optionally monovinylaromatic compounds, and also optionally at least one porogen and/or optionally at least one initiator in an aqueous phase to form a crosslinked bead polymer, wherein a weight quantity of acrylic monomers is greater than 70 wt % relative to the total amount of monomers used, andb) reacting the bead polymer from step a.) with diethylenetriamine to produce functionalized bead polymer, andc) wholly or partially converting the functionalized bead polymer from step b.) with alkyl or aryl halides into quaternized ...

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04-04-2019 дата публикации

ION EXCHANGE DEVICE AND METHOD OF USING SAME

Номер: US20190099750A1
Принадлежит:

An ion exchange device is used that includes an anion exchange tank, a cation exchange tank and a tower body side portion, in which the anion exchange tank and the cation exchange tank are allowed to communicate by communication means that is arranged around the outside of the anion exchange tank and the cation exchange tank. The ion exchange device also includes supply/discharge pipes for supplying or discharging a liquid to or from an upper portion and a lower portion of the anion exchange tank, and supply/discharge pipes for supplying or discharging a liquid to or from an upper portion and a lower portion of the cation exchange tank. A water collection/distribution member that allows water to pass but prevents passage of an ion-exchange resin is provided in a flat plate. 1. An ion exchange device comprising , at an upper part , an anion exchange tank in which an anion-exchange resin is packed , and at a lower part , a cation exchange tank in which a cation-exchange resin is packed , wherein:the anion exchange tank and the cation exchange tank each independently have an outer shell that is constituted by end plates having an outwardly convex shape that are provided at an upper portion and a lower portion and also by a support body of an ion exchange tank side portion, and comprise an upper chamber, a resin-packed chamber and a lower chamber which are partitioned from each other by two upper and lower flat plates; andthe anion exchange tank and the cation exchange tank are allowed to communicate by communication means provided outside of the anion exchange tank and the cation exchange tank;the ion exchange device further comprising a supply/discharge pipe for supplying or discharging a liquid to or from the upper portion of the anion exchange tank, and a supply/discharge pipe for supplying or discharging a liquid to or from the lower portion of the cation exchange tank;the communication means comprising:a first communication pipe for supplying/discharging a liquid ...

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02-06-2022 дата публикации

SYSTEM AND METHOD FOR REGENERATING AND RESTORING KINETIC PROPERTIES OF RESIN

Номер: US20220168725A1
Автор: Miller Thomas O.
Принадлежит:

A system and method configured to restore ion exchange kinetic properties and purify resin is described. Degraded ion exchange kinetic properties of anion resin will eventually result in impurity slippage through resin charges. This system and method employs an acid catalyst in combination with sulfite cleaning solution to remove organic material and to protonate iron oxides for deconstruction and removal from anion resins. The cleaning solution, when applied via a cleaning vessel utilizing an eductor(s)/plenum and wedge-wire screen draw chamber, while controlling all phases of cleaning by electronic monitoring, yields complete restoration of ion exchange kinetics on usable resin. As such, the system and method provides a safe, effective, and vastly improved method for restoring anion resin kinetics and improving regeneration quality, for improved resin performance and minimizing resin replacement costs. 114-. (canceled)15. A method of cleaning ion exchange resin from organic and iron foulants for reuse of the resin , comprising:introducing the fouled/exhausted resin to a vessel through at least one eductor, the vessel containing a sulfite chemical cleaning solution configured to perform a reducing reaction to clean resins prior to regeneration, converting the cleaning solution to sulfate;circulating the cleaning solution, at least one regeneration chemical, and rinse waters to flow bi-directionally through at least one separation screen of a draw chamber while the resin is moving about the draw chamber as it is pulled towards a bottom of the draw chamber by the at least one eductor;recirculating the resin from the bottom of the draw chamber to the top of the vessel using the at least one eductor and a plenum in fluid communication with the eductor, where the resin travels downward again into the draw chamber; andrinsing the resin.16. The method of claim 15 , further comprising catalyzing the sulfite chemical cleaning solution to form a reducing solution to ...

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21-04-2016 дата публикации

Method for recirculating a reprocessing effluent comprising chloride ions

Номер: US20160107122A1
Принадлежит: Eurodia Industrie SA

The object of the present invention is a method for recirculating a reprocessing effluent comprising chloride ions from an ion exchange resin comprising the following steps: (ii) selecting fractions A, B, and optionally B′, directly stemming from a reprocessing effluent comprising chloride ions or after one or several steps for modifying the chloride ion concentration, having concentrations of chloride ions (g/l) of respectively (a), (b) and (b′)>0 g/l, with (a)>(b); (iii) transferring by electrodialysis the chloride ions from the fraction B to fraction A for obtaining a fraction C having a chloride ion concentration (c) greater than (a); or (iv) transferring by electrodialysis the chloride ions from fraction B to fraction B′, in order to obtain a fraction B″ having a concentration of chloride ions (b″) greater than (b′) and then mixing the fractions B″ and A in order to obtain a fraction C having a chloride ion concentration (c) greater than (a).

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19-04-2018 дата публикации

Regeneration of Mixed Bed Resins

Номер: US20180105439A1
Автор: Dominique Gensbittel
Принадлежит:

In an ion-exchange separation system, a single regeneration column provides for separation of anion and cation resins and the regeneration of both cation and anion resins with a very low level of cross-contamination. After regeneration most of the anion layer in the column is withdrawn, and most of the cation layer is withdrawn, but a portion of each layer adjacent to the interface between the layers remains in the column, to isolate these cross-contaminated portions from the regenerated resins. The withdrawn, regenerated anion and cation resins are placed back into the working vessel. 1. In an ion exchange water treatment system using a mixed bed separator with cation and anion resins , a method for regeneration of the cation and anion resins with minimal cross-contamination , comprising:transporting the mixed resins from a working vessel to a separation/regeneration column,separating the anion resins from the cation resins using an upflow of backflush water, thus to divide the bed into two well stratified cation and anion layers, with the anion layer above,regenerating the anion resin layer by flowing a regenerating alkaline liquid down through the anion layer, and regenerating the cation resin layer by flowing a regenerating acid liquid up through the cation resin layer, while withdrawing from the column the regenerating acid and alkaline liquids essentially at an interface between the anion and cation layers,rinsing the respective regenerated layers with water,withdrawing essentially all of the anion resin layer from the column, leaving a small bottom portion of the anion resin layer remaining in the column, on top of the cation resin layer,withdrawing essentially all of the cation resin layer from the column, from a withdrawal level essentially at the bottom of the column, leaving a small portion of the cation resin layer remaining in the column, below the remaining anion portion, andleaving the small anion resin portion and the small cation portion to remain ...

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19-04-2018 дата публикации

COMPOSITIONS AND METHODS FOR RETARDING THE FORMATION OF INSOLUBLE BYPRODUCTS IN WATER SOFTENERS

Номер: US20180105440A1
Принадлежит:

Novel water softening products and methods of treating hard water are provided. The products comprise a chloride-free, organic salt and a chelating agent. The products are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions, while avoiding the formation of undesirable precipitates (e.g., low Ksp byproducts). 1. A method for regenerating a water treatment ion exchange material , comprising contacting a cation exchange material with an aqueous regenerant solution or dispersion consisting essentially of ions produced from a chloride-free salt and a calcium-chelating agent , said aqueous regenerant solution or dispersion produced by dissolving said chloride-free salt and said calcium-chelating agent in water , wherein said chloride-free salt is selected from the group consisting of NaHCO , NaSO , NaHPO , KHCO , KHPO , KHPO , KPO , NaPO , NaCO , KCO , and mixtures thereof.2. The method of claim 1 , wherein said chelating agent is selected from the group consisting of monomeric compounds comprising anionic moieties claim 1 , oligomeric compounds comprising anionic moieties claim 1 , and polymeric compounds comprising anionic moieties.3. The method of claim 2 , wherein said anionic moiety is selected from the group consisting of carboxylate claim 2 , phosphonate claim 2 , and sulfonate moieties claim 2 , and combinations of the foregoing.4. The method of claim 1 , wherein said chelating agent is selected from the group consisting of EDTA claim 1 , sodium succinate claim 1 , sodium citrate claim 1 , polyacrylic acid claim 1 , polymaleic acid claim 1 , polyaspartic acid claim 1 , polymers containing more than one type of anionic chelating moiety claim 1 , and mixtures thereof.5. The method of claim 1 , wherein said aqueous solution or dispersion is essentially free of chloride ions.6. The method of claim 1 , said aqueous solution or dispersion comprising from about 1% to about 10% by ...

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28-04-2016 дата публикации

METHOD AND APPARATUS FOR REDUCING REGENERANT AND WASTEWATER BY USING COMPRESSED AIR

Номер: US20160115044A1
Автор: WANG SZ-LUNG
Принадлежит:

An apparatus and method for reducing regenerant and wastewater by compressed air are provided. The method comprises the first service, the first air-intake and drain step, the first assistant drain step, the first rinse and backwash step, the second air-intake and drain step, and the first generation step. The first air-intake and drain step and the first assistant drain step are useful to reduce the total amount of the consumed pure water and total amount of the produced wastewater. By recovering and reusing the spent regenerant, the discarded amount of the spent regenerant is decreased, the concentration of the adsorbed substances in the spent regenerant is increased, thereby reducing the pollution in the environment. 1. A method for reducing regenerant and wastewater by compressed air , comprising steps of:a first service step: feeding waste fluid or tap water into an ion exchange resin tower packed with ion exchange resin to allow the ion exchange resin to adsorb substances in the waste fluid or tap water;a first air-intake and drain step: supplying compressed air into the ion exchange resin tower through an upper opening of the ion exchange resin tower, so as to discharge the waste fluid or tap water out of the ion exchange resin tower;a first assistant drain step: feeding pure water into the ion exchange resin tower through the upper opening of the ion exchange resin tower, and then supplying compressed air into the ion exchange resin tower through the upper opening of the ion exchange resin tower, so as to discharge the waste fluid or tap water out of the ion exchange resin tower;a first rinse and backwash step: feeding pure water into the ion exchange resin tower through the upper opening of the ion exchange resin tower, and then feeding pure water into the ion exchange resin tower through a lower opening of the ion exchange resin tower, so as to rinse and backwash the ion exchange resin tower;a second air-intake and drain step: supplying compressed air into ...

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26-04-2018 дата публикации

METHODS AND EQUIPMENT TO MAKE LITHIUM HYDROXIDE MONOHYDRATE FROM LITHIUM SALTS

Номер: US20180111840A1
Автор: Malhotra Vinod
Принадлежит:

Embodiments of the invention relate to methods and equipment to make lithium hydroxide from lithium salts. 1. A method of producing lithium hydroxide from lithium salts , the method comprising:contacting a resin bed including anion exchange resin having hydroxyl ions bound thereto with a contacting solution having dissolved lithium salts therein for a duration of time effective to at least partially exchange anions of the dissolved lithium salts with the hydroxyl ions bound to the anion resin;draining the contacting solution from the resin bed to collect a product solution including at least some lithium hydroxide therein;washing the resin bed with water effective to displace any residual contacting solution from the anion exchange resin;soaking the resin bed with a caustic solution effective to displace anions of the dissolved lithium salts from the anion exchange resin with hydroxyl ions of the caustic solution; anddraining the caustic solution from the resin bed to collect a by-product solution.2. The method of claim 1 , further comprising rinsing the resin bed with water effective to displace any residual caustic solution from the anion exchange resin.3. The method of claim 2 , further comprising repeating the contacting claim 2 , draining claim 2 , washing claim 2 , soaking claim 2 , draining claim 2 , and rinsing one or more times.4. The method of wherein one or more of washing or rinsing includes using a volume of fresh water at least equal to a volume of the resin bed.5. The method of claim 2 , wherein rinsing the resin bed with water includes providing a contact time of water with the resin bed of at least one second.6. The method of claim 1 , wherein the resin bed is housed in a holding tank having an agitator and drain.7. The method of claim 6 , wherein the agitator is an overhead agitator.8. The method of claim 6 , further comprising agitating the resin bed with the agitator during one or more of the contacting claim 6 , draining claim 6 , washing claim ...

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27-04-2017 дата публикации

Method for removing heavy metals from an aqueous solution with cross-linked copolymers

Номер: US20170113215A1

Cross-linked cyclocopolymers made up of one or more quaternary ammonium salts and sulfur dioxide as monomers. One of the quaternary ammonium salts is also an aspartic acid derivative. The cross-linked copolymers include a repeating unit with multiple chelating centers that different metal ions can bind to. The cross-linked copolymers are zwitterionic or anionic, and can be in either an acidic form or a basic form. A method for removing metal ions from an aqueous sample with these cross-linked copolymers is also described.

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18-04-2019 дата публикации

REMOVAL OF SULFATE FROM SOLVENT SOLUTIONS USING AN ANION EXCHANGE RESIN

Номер: US20190111381A1
Принадлежит:

Generally, the present invention relates to the selective removal of divalent sulfur oxyanions (e.g., sulfate) from an aqueous solvent using an anion exchange resin. More particularly, this invention relates to regenerative processes for the selective removal and recovery of sulfur dioxide from a source gas using an aqueous absorption medium in which an anion exchange resin is used to selectively remove divalent sulfur oxyanion impurities accumulating in the recirculating aqueous absorption medium. 1. A process for selectively removing and recovering sulfur dioxide from a sulfur dioxide-containing source gas , the process comprising:contacting a feed gas stream comprising the source gas in a sulfur dioxide absorber with a buffered aqueous absorption medium comprising a salt of a polyprotic carboxylic acid, thereby absorbing sulfur dioxide from the feed gas stream into the absorption medium and producing an exhaust gas from which sulfur dioxide has been removed and a sulfur dioxide-enriched absorption liquor comprising aqueous absorption medium and sulfur dioxide absorbed therein;heating the sulfur dioxide-enriched absorption liquor in an absorption liquor stripper to desorb sulfur dioxide from the sulfur dioxide-enriched absorption liquor and thereby produce a regenerated aqueous absorption medium and a sulfur dioxide-enriched stripper gas;recirculating regenerated aqueous absorption medium to the sulfur dioxide absorber for further absorption of sulfur dioxide from further flow of the feed gas stream, wherein divalent sulfur oxyanion impurities accumulate in the aqueous absorption medium recirculated between the absorption liquor stripper and the sulfur dioxide absorber; andcontacting an anion exchange feed stream comprising at least a portion of the aqueous absorption medium recirculated between the absorption liquor stripper and the sulfur dioxide absorber with an anion exchange resin, thereby selectively removing divalent sulfur oxyanion impurities from the ...

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17-07-2014 дата публикации

REGENERATION OF ION EXCHANGE RESIN AND RECOVERY OF REGENERANT SOLUTION

Номер: US20140196753A1
Принадлежит: RAYNE DEALERSHIP CORPORATION

An apparatus and method for regenerating spent ion exchange resin and recovering regenerant fluid is described. A regeneration system has a regeneration vat, a regeneration solution tank, a regenerant recovery tank, a chemical dispenser, a solids separator, a pH adjuster and a pump. The regeneration vat holds the spent resin and is connected to the regeneration solution tank to allow transfer of regenerant solution into the regeneration vat. Spent regenerant fluid travels to the regenerant recovery tank, where it is treated with chemicals provided from the chemical dispenser. The solids separator receives the treated regenerant liquid and separates precipitate flocs from the treated regenerant liquid. The concentration of chloride ions in the separated regenerant solution can be adjusted by the pH adjuster to form fresh regenerant solution. The pump pumps the fresh regenerant solution to the regenerant solution tank to regenerate additional spent cation exchange resin. 1. A resin regeneration system comprising:(a) a regeneration vat for holding spent cation exchange resin;(b) a regenerant solution tank for holding fresh regenerant solution, the regenerant solution tank is connected to the regeneration vat to allow transfer of the regenerant solution into the regeneration vat to regenerate the spent cation exchange resin to form fresh cation exchange resin and spent regenerant solution;(c) a regenerant recovery tank comprising (i) a fluid inlet to receive the spent regenerant solution, and (ii) a fluid outlet to release treated regenerant liquid;(d) a chemical dispenser to dispense a regenerant treatment composition into the spent regenerant solution in the regenerant recovery tank to form a treated regenerant liquid and precipitate flocs;(e) a solids separator to receive the treated regenerant liquid and separate the precipitate flocs from the treated regenerant liquid to form a separated regenerant solution;(f) a pH adjuster to adjust the concentration of chloride ...

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05-05-2016 дата публикации

Aldehyde adsorbent, method for removing aldehyde, method for producing acetic acid, and method for regenerating aldehyde adsorbent

Номер: US20160121320A1
Принадлежит: Chiyoda Corp

An aldehyde adsorbent that can adsorb and remove aldehyde from a carboxylic acid-containing liquid is provided. The aldehyde adsorbent is an aldehyde adsorbent for adsorbing aldehyde in a carboxylic acid-containing liquid containing aldehyde, including a cation exchange resin ion-exchanged with a polyvalent amine in 1 to 99% by mol of the total exchange capacity.

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03-05-2018 дата публикации

NITRATE REMOVAL BY ION EXCHANGE AND BIOREGENERATION

Номер: US20180118598A1
Принадлежит:

A system for nitrate removal from water combining: an ion exchange unit comprising at least one column of an ion exchange resin, a brine bioregeneration circuit comprising a sequential batch reactor (SBR), and an ozonation unit, is disclosed. A method for nitrate removal from water is further disclosed. 1. A method comprising the steps of:(a) contacting a nitrate contaminated water with one or more columns of ion exchange resins having an affinity to nitrate, thereby removing nitrate from the water and loading nitrate in said one or more columns of said exchange resins;(b) separating said reduced nitrate content product water from the nitrate loaded columns of said ion exchange resin, thereby forming a product water having reduced nitrate content; (i) contacting the nitrate loaded columns of said ion exchange resin with a fed brine solution having nitrate desorbing content; and', '(ii) removing the brine solution from the treated ion exchange resin, thereby forming a regenerated ion exchange resin having reduced nitrate load;, '(c) forming a regenerated ion exchange resin having reduced nitrate load, comprising the steps of(d) contacting the brine solution to a sequential batch reactor (SBR) comprising denitrifying bacteria;(e) adding an electron donor to the SBR thereby essentially removing nitrate from the brine solution;(f) performing sedimentation of the brine solution and adding salt thereto to thereby remove excess denitrifying bacterial biomass therefrom; and{'sub': '3', '(g) contacting the brine solution with Othereby disinfecting and/or removing remaining suspended solids, turbidity and dissolved organic-based component in said brine and optionally recycling the brine to step (c), thereby forming a regenerated ion exchange resin having reduced nitrate load.'}2. The method of claim 1 , characterized by one or more from (i) to (v):(i) steps (a) to (b) and/or (c) to (g) being performed repeatedly;(ii) being performed such that at least 75% (wt.) of the brine ...

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27-05-2021 дата публикации

Method and System to Improve All Phases of Ion-Exchange Resin Regeneration

Номер: US20210154658A1
Автор: Abdullah Kazi
Принадлежит: Individual

A semi-continuous or continuous method and system to improve all phases of ion-exchange resin regeneration such as backwash, resin separation, chemical treatment, slow rinse, fast rinse, resin mixing, and final QA/QC to reduce, reuse and recycle water and chemicals employed in ion-exchange resin regeneration operations. Aqueous media quality is controlled in both backwash as well as ion-exchange resin separation.

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01-09-2022 дата публикации

WATER SOFTENER

Номер: US20220274100A1
Принадлежит:

Water softening system includes water softening tank, neutralization tank, electrolysis tank, and treatment tank. Water softening tank softens raw water containing a hardness component with weakly acidic cation exchange resin. Neutralization tank neutralizes a pH of soft water that has flowed through water softening tank with weakly basic anion exchange resin. Electrolysis tank generates acidic electrolyzed water for regenerating weakly acidic cation exchange resin of water softening tank and alkaline electrolyzed water for regenerating weakly basic anion exchange resin of neutralization tank. Treatment tank mixes the acidic electrolyzed water that has flowed through water softening tank and the alkaline electrolyzed water that has flowed through neutralization tank, and supplies the mixture of the acidic electrolyzed water and the alkaline electrolyzed water to electrolysis tank. 1. A water softening system comprising:a water softening tank for softening raw water containing a hardness component with a weakly acidic cation exchange resin;a neutralization tank for neutralizing a pH of soft water with a weakly basic anion exchange resin, the soft water having flowed through the water softening tank;an electrolysis tank for generating acidic electrolyzed water and alkaline electrolyzed water, the acidic electrolyzed water being to be used for regenerating the weakly acidic cation exchange resin of the water softening tank, the alkaline electrolyzed water being to be used for regenerating the weakly basic anion exchange resin of the neutralization tank; anda treatment tank for mixing the acidic electrolyzed water that has flowed through the water softening tank and the alkaline electrolyzed water that has flowed through the neutralization tank to generate a mixture, and suppling the mixture to the electrolysis tank.2. The water softening system according to claim 1 , further comprising:a first supply channel capable of drawing the acidic electrolyzed water from the ...

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03-06-2021 дата публикации

Fixed Bed Counter-current Regeneration Device Of Ion Exchange Resin And Application Method Of Fixed Bed Counter-current Regeneration Device

Номер: US20210162397A1
Принадлежит:

The invention discloses a fixed bed counter-current regeneration device for ion exchange resin and the method of use, relates to the field of ion exchange resin regeneration. The device comprises a cyclone separator, a regeneration reactor, a fully mixed resin reactor, a desorption solution storage tank, and a regenerant storage tank, wherein the cyclone separator is placed on top of the regeneration reactor, the upper part of the cyclone separator is connected to the fully mixed resin reactor. A resin inlet is provided at the bottom of the cyclone separator, a resin bed and a resin filter are arranged inside the regeneration reactor, a resin outlet and a regenerant inlet are arranged at the bottom of the regeneration reactor, the resin outlet is connected to the fully mixed resin reactor, the regenerant inlet is connected to the desorption solution storage tank and the regenerant storage tank, respectively, one side of the regeneration reactor is further provided with a regenerant outlet, and the regenerant outlet is connected to the desorption solution storage tank. The invention effectively improves resin regeneration efficiency via separator and counter-current, reduces the desorption solution yield, prevents mechanical wear and tear of the resin, and can be used as part of large-scale ion exchange resin applications. 1. An ion exchange resin fixed bed counter-current regeneration device , comprising:{'b': '1', 'a cyclone separator ();'}{'b': '2', 'a regeneration reactor ();'}{'b': '3', 'a fully mixed resin reactor ();'}{'b': '4', 'a desorption solution storage tank (); and'}{'b': 5', '1', '2', '1', '3', '10', '12', '1', '6', '9', '2', '9', '8', '4', '20', '14', '2', '20', '3', '14', '4', '5', '2', '13', '13', '4, 'a regenerant storage tank (), wherein the cyclone separator () is placed on the top of the regeneration reactor (), the upper part of the cyclone separator () is connected to the fully mixed resin reactor () through a feed inlet (), a resin inlet () ...

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03-06-2021 дата публикации

Process for polishing metal contaminants from an acidic solution comprising scandium

Номер: US20210163309A1
Принадлежит: Rio Tinto Iron and Titanium Canada Inc

The present disclosure provides a process for polishing at least one metal contaminant from a stock solution comprising Sc comprising the steps of a) contacting the stock solution with an ion exchange resin capturing Sc and the at least one metal contaminate so as to produce a metal ion exchange resin complex, and b) scrubbing the metal resin complex with a scrubbing solution comprising a carboxylate ion, so as to produce a Sc ion exchange resin complex and a spent carboxylate solution, which can be treated by electrodialysis to regenerate the carboxylate ion required for scrubbing.

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17-05-2018 дата публикации

METHODS AND SYSTEMS FOR PURIFYING HYDROGEN PEROXIDE SOLUTIONS

Номер: US20180134554A1
Принадлежит:

Compositions, methods, devices, and systems for purifying a source liquid from a replenishment stock solution that includes stabilizing agents, such as metal ions, prior to vaporization. Certain embodiments effect the purification with a solid perfluoronated ionomer, such as a perfluoronated ionomer membrane. Advantageously, source liquids purified in this manner provide feed stocks for production of ultra-pure gaseous reagents. As well, performance characteristics of membrane-based vaporizers relying on transport processes are improved. 183-. (canceled)84. A method , which comprises:a) providing a solution comprising hydrogen peroxide or hydrazine and one or more cations;b) contacting the solution with an ion exchange polymer to produce a purified solution having a reduced content of the one or more cations;c) forming a vapor from the purified liquid solution; andd) delivering the vapor to a critical process or application.85. The method of claim 84 , wherein forming the vapor from the purified liquid solution in step c) comprises exposing the purified liquid solution to sub-atmospheric pressure.86. The method of claim 84 , wherein forming the vapor from the purified liquid solution in step c) comprises contacting the purified liquid solution with an ion exchange polymer membrane.87. The method of claim 85 , further comprising passing the vapor through an ion exchange polymer membrane prior to delivering the vapor to the critical process or application.88. The method of claim 86 , further comprising contacting the vapor with a carrier gas to form a combined gas stream and delivering the combined gas stream to the critical process or application.89. The method of claim 84 , wherein the solution is substantially free of water.90. The method of claim 84 , wherein the solution further comprises a non-aqueous excipient.91. The method of claim 90 , wherein the non-aqueous excipient is selected from alcohols claim 90 , phenols claim 90 , lactones claim 90 , amides claim ...

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18-05-2017 дата публикации

UREA SULFATE AND SODIUM CHLORIDE BLEND FOR REGENERATION OF CATION EXCHANGE RESINS

Номер: US20170136451A1
Принадлежит:

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid salt regenerant;generating the treated water source within a ware wash machine; andproviding the treated water source to a chamber into which articles are placed for cleaning;wherein the treated water source meets a defined water specification, and wherein the water specification is a softened, acidic water with a total dissolved solids (TDS) of less than about 300 ppm, a hardness level of less than about 2 grains and a pH less than about 6, andwherein the use of said treated water source improves cleaning efficacy as measured by a reduction in spotting and filming and/or preventing scale build up on articles ...

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28-05-2015 дата публикации

SYSTEM FOR REMOVING MINERALS FROM A BRINE

Номер: US20150144566A1
Автор: Wallace Paul Steven
Принадлежит:

A system includes an ion exchange softener fluidly coupled to a wastewater treatment system. The first ion exchange softener may receive a first brine stream from the wastewater treatment system and to remove a plurality of minerals from the first brine stream to generate a second brine stream including the plurality of minerals and a third brine stream. The system also includes a mineral removal system disposed downstream from the ion exchange softener and that may receive the second brine stream and to generate a sodium chloride (NaCl) brine stream and an acid and caustic production system disposed downstream from and fluidly coupled to the mineral removal system. The acid and caustic production system includes a first electrodialysis (ED) system that may receive the NaCl brine stream from the mineral removal system and to generate hydrochloric acid (HCl) and sodium hydroxide (NaOH) from the NaCl brine stream. The system also includes a second ED system disposed downstream from the ion exchange softener and upstream of the acid and caustic production system. The second ED system is fluidly coupled to the ion exchange softener and to the acid and caustic production system, and the second ED may generate desalinated water from the third brine stream and an ED concentrate stream. The second ED system may direct the ED concentrate stream to the acid and caustic production system. 1. A system , comprising:an ion exchange softener fluidly coupled to a wastewater treatment system, wherein the first ion exchange softener is configured to receive a first brine stream from the wastewater treatment system and to remove a plurality of minerals from the first brine stream to generate a second brine stream comprising the plurality of minerals and a third brine stream;a mineral removal system disposed downstream from the ion exchange softener and configured to receive the second brine stream and to generate a sodium chloride (NaCl) brine stream;an acid and caustic production ...

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08-09-2022 дата публикации

Jmz-12, a disordered aei/cha family of zeolites, its synthesis and use

Номер: US20220281752A1
Принадлежит: JOHNSON MATTHEY PLC

The present invention is directed to a method of preparing a synthetic crystalline material, designated as JMZ-12, with a framework built up by the disorder AEI and CHA structures, substantially free of framework phosphorous and prepared preferably in the absence of halides such as fluoride ions. Such method comprises the step of heating a reaction mixture under crystallization conditions for a sufficient period to form a disordered zeolite having both CHA and AEI topologies, wherein the reaction mixture comprises at least one source of aluminum, at least one source of silicon, a source of alkaline or alkaline-earth cations, and a structure directing agent containing at least one source of quaternary ammonium cations and at least one source of alkyl-substituted piperidinium cations in a molar ratio of 0.20 to about 1.4. The resulting zeolites are useful as catalysts, particularly when used in combination with exchanged transition metal(s) and, optionally, rare earth metal(s).

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30-04-2020 дата публикации

Method of Separating Anion and Cation Exchange Resins and Device for the Same

Номер: US20200129993A1
Принадлежит:

A method is provided for separating anion and cation exchange resins. The specific-gravity difference between the anion and cation exchange resins is used for separation with a column body. The column body comprises an outer column and an inner column set within. The inner column has an outlet with position adjustable for outputting the anion exchange resin according to its ratio. The flow zone and the resin expansion zone can effectively shorten the time required for the separation. Besides, the required equipment is simplified. Only the size of the column body needs to be adjusted according to the amount of the mixed bed resin to-be-treated. The present invention can be applied to different proportions of mixed beds and mixed resins. On consideration of equipment cost and operating cost, the method can complete the separation of the anion and cation exchange resins in a short time with the simplified equipment. 1. A method of separating anion and cation exchange resins , comprising steps of: wherein said separator apparatus comprises a column body; a solid-liquid separator connecting to said column body; and a separated-product receiver connecting to said column body and said solid-liquid separator;', 'wherein said column body comprises an outer column and an inner column, said inner column being movably disposed in said outer column with a height position adjustable;', 'wherein said outer column has a resin inlet on top; a fluid inlet at bottom; and a first outlet on the wall of said outer column adjacent to bottom;', 'wherein said inner column is a second outlet; and', 'wherein said mixed bed resin is fed in from said resin inlet to process rough separation for the first time through gravitational settling;, '(a) obtaining a column separator apparatus to separate a mixed bed resin,'} 'wherein a layer of said cation exchange resin is expanded to 2˜2.5 times to original volume; a layer of said anion exchange resin is expanded to 3.8˜5.3 times to original volume; ...

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25-05-2017 дата публикации

INTEGRATED ACID REGENERATION OF ION EXCHANGE RESINS FOR INDUSTRIAL APPLICATIONS

Номер: US20170144145A1
Принадлежит:

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications. 1. A method for treating hard water for use in a cleaning application using an acid regenerated ion exchange resin comprising:contacting a hard water source for use in a dilution system or a ware wash machine with a water treatment composition, wherein the water treatment composition comprises at least one ion exchange resin, wherein the ion exchange resin generates a treated water source by exchanging protons on said resin for dissolved cations including water hardness ions and total dissolved solids in said water source, wherein said ion exchange resin is an acid form or in an inert metal form, and wherein said ion exchange resin is regenerated using an acid;generating the treated water source within a ware wash machine; andproviding the treated water source to a chamber into which articles are placed for cleaning;wherein the treated water source is a softened, acidic and low total dissolved solids (TDS) water having a hardness level of less than about 2 grains and a pH less than about 6.2. The method according to claim 1 , wherein said ion exchange resin is a weak acid cation exchange resin selected from the group consisting of a cross-linked polyacrylic with carboxylic acid functional group claim 1 , a cross-linked polymethacrylic with carboxylic acid functional ...

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04-06-2015 дата публикации

Self-Regenerating Zeolite Reactor for Sustainable Ammonium Removal

Номер: US20150151996A1
Принадлежит:

A method of using micro-organisms to continuously and sustainably regenerate zeolite cation exchange capacity (CEC) for removing nitrogen (ammonium, nitrite, and nitrate) from wastewater. The zeolite immobilizes the ammonium ions, and the micro-organisms ingest the ammonium from the surface of the zeolite thereby freeing the cation exchange sites to trap more ammonium. The zeolite is continuously regenerated by the microbes, sustainably maintaining available ion exchange capacity for removing ammonium, and does not need to be shut down for regeneration or replacement. The microbial complex contains nitrifiers, anammox, denitrifiers, archaea, and others. All the micro-organisms co-exist in the same reactor promoting symbiotic interactions, thereby increasing treatment efficiency. The end product is di-nitrogen gas which dissipates into the atmosphere. The system does not require aeration, operates by gravity flow, and has very low energy requirements. Maintenance is minimal, and the system can significantly reduce greenhouse gas emissions (nitrous oxide). 1. A method for removing total nitrogen (TN) , or ammonium , from waste water or any freshwater or brackish aquatic medium , using a zeolite-anammox reactor consisting of bio-zeolite comprising:a) a physico-biological process predominated by a cationic exchange medium, such as zeolite, and a biological component containing anammox;b) a combination of zeolite and anammox to form a continuously running, self-regulating, self-regenerating zeolite-anammox treatment system for removing TN;c) a combination of zeolite and a microbial mixture forming bio-zeolite,d) bio-zeolite as a permanent, stratified, fixed film cation exchange reactor for nitrogen species removal including continuous ongoing in-situ biological regeneration of zeolite (i.e. does not require shutting down for regeneration);e) options include a low energy system that can run by gravity flow and atmospheric aeration.2. A method according to including the ...

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15-09-2022 дата публикации

MASS TRANSFER SWIRLER INCLUDING DISTRIBUTION MEMBER

Номер: US20220288554A1
Принадлежит:

A swirler includes a base and one or more fins coupled to the base. The swirler also includes a distribution member configured to divert or guide fluid. In some implementations, the distribution member includes an annular member coupled to the base and positioned at least partially around the longitudinal axis. The swirler may be included in an adsorption column. 1. A swirler comprising:a base comprising a first end opposite a second end along a longitudinal axis of the base, the base including one or more fins oriented along the longitudinal axis from the first end to the second end; and an annular member coupled to the base and positioned at least partially around the longitudinal axis.2. The swirler of claim 1 , wherein the base claim 1 , fins or both claim 1 , comprise plastic or metal.3. The swirler of claim 1 , further comprising mesh coupled to the base claim 1 , the annular member or both claim 1 , wherein the mesh is positioned within a gap defined by the base and the annular member.4. The swirler of claim 1 , wherein a degree of twist with respect to a longitudinal axis of the base is between 15 to 70 degrees.5. The swirler of claim 1 , wherein the annular member is positioned around an entirety of the base and is configured to function as a distributor and generate divergent flow which moves fluid radially outward from the base.6. The swirler of claim 1 , wherein the annular member includes striations or has a corrugated surface.7. The swirler of claim 1 , further comprising one or more interconnects configured to couple to one or more other swirlers.8. The swirler of claim 1 , wherein the base comprises a hub claim 1 , and wherein the one or more fins comprises two helical fins coupled to the hub claim 1 , the two helical fins each having a rectangular cross section and a pitch of 150-210 degrees about the longitudinal axis.9. A system comprising: a cylindrical tube; a distributor coupled to the cylindrical tube configured to provide fluid to the ...

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17-06-2021 дата публикации

REMOVING METAL IONS WITH A MEMBRANE BASED ON ANIONIC POLYARYLENE ETHERSULFONE AND A CATIONIC POLYMER WITH AMINO GROUPS

Номер: US20210178342A1
Принадлежит:

The present invention relates to a method for removing metal ions from an aqueous system comprising a step of filtering the aqueous system through a loaded membrane which contains a carrier membrane based on a polyarylene ethersulfone which carries anionic groups, and a cationic polymer which is a polymer comprising primary and/or secondary amino groups. The invention further relates to a loaded membrane which contains a carrier membrane based on a polyarylene ethersulfone which carries anionic groups, and a cationic polymer which is a polymer comprising primary and/or secondary amino groups. 1. A method for removing metal ions from an aqueous system comprising a step of filtering the aqueous system through a loaded membrane which containsa carrier membrane based on a polyarylene ethersulfone which carries anionic groups, anda cationic polymer which is a polymer comprising primary and/or secondary amino groups.2. The method according to where the cationic polymer is polyethyleneimine claim 1 , polyethyleneimine-polyvinylalcohol claim 1 , poly-L-lysine claim 1 , diethylaminoethyl-dextran claim 1 , chitosan claim 1 , polyetheramine claim 1 , and polymers based on vinylamine.3. The method according to or where the anionic groups are sulfonate claim 1 , carboxylate claim 1 , or phosphonate groups.4. The method according to any of to where the carrier mebrane is based ona) a sulfonated polyarylene ethersulfone;b) a carboxylated polyarylene ethersulfone; or at least one aromatic dihalide (M1a),', 'a dialkali metal salt of at least one aromatic diol (M2a), and', 'at least one anionic monomer, where the anionic monomer is', 'a sulfonated monomer selected from sulfonated aromatic dihalide (M1b) and/or sulfonated aromatic diol (M2b), and/or', 'a carboxylic monomer selected from aromatic diols which carry a carboxylate group (M2c)., 'c) a carrier polymer obtainable by reacting'}7. The method according to any of to where 0.1 to 40 mol % claim 1 , preferably 0.3 to 30 mol % ...

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16-05-2019 дата публикации

Recovery system for high pressure processing system

Номер: US20190144757A1
Принадлежит: STEEPER ENERGY APS

The invention relates to a method of separating and purifying products from a high pressure processing system adapted for processing a feed mixture comprising carbonaceous material(-s) at a pressure of from about 150 bar to about 400 bar and a temperature from about 300° C. to about 430° C. in the presence of homogeneous catalysts in the form of potassium and/or sodium in a concentration of at least 0.5% by weight and liquid organic compounds in a concentration from about 5% to about 40% by weight in a predefined time thereby producing a converted feed mixture, wherein the converted feed mixture is cooled to a temperature in the range 50 to 250° C., and depressurized to a pressure in the range 1 to 150 bar, and where the converted feed mixture is separated in to a gas phase comprising carbon dioxide, hydrogen, and methane, an oil phase comprising oil phase liquid organic compounds, and a water phase comprising water phase liquid organic compounds, dissolved salts and optionally suspended particles, where the water phase liquid organic compounds and dissolved homogenous catalysts in the form of potassium and/or sodium are at least partly recovered from said water phase thereby producing a first water phase stream enriched in water phase liquid organic compounds and homogeneous catalysts in the form of potassium and sodium, and a second water phase stream depleted in water phase liquid organic compounds and homogeneous catalysts in the form of potassium and sodium, where the first water phase is at least partly recycled to said the feed mixture to provide at least part of said liquid organic compounds and homogeneous catalysts in the feed mixture, and where further a bleed stream is withdrawn from said water phase enriched in water phase liquid organic compounds and homogeneous catalysts in the form of potassium and sodium prior to recycling said first recycle stream to the feed mixture.

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31-05-2018 дата публикации

PROCESS OF USE OF ADSORBENT RESIN PARTICLES

Номер: US20180148348A1
Принадлежит:

Provided is an apparatus for removing impurities from feed water comprising 1. A method for removing impurities from feed water comprising(a) providing a loading tank containing a collection of adsorbent resin particles, the collection having a top and a bottom,(b) introducing the feed water into the bottom of the collection of the adsorbent resin particles,(c) forcing the feed water upward through the collection of the adsorbent resin particles,(d) passing the feed water through a grid located above the top of the collection of the adsorbent resin particles, wherein the grid prevents the passage of the adsorbent resin particles,(e) allowing a portion of the collection of the adsorbent resin particles to fall from the bottom of the loading tank into a regeneration tank,(f) introducing regenerant liquid into the regeneration tank,(g) after steps (e) and (f), in the regeneration tank, forming a mixture of contaminated regenerant liquid and purified adsorbent resin particles,(h) after step (g), removing the contaminated regenerant liquid from the regeneration tank,(i) after step (h), introducing pure water into the regeneration tank to form a mixture of the pure water and the purified adsorbent resin particles,(j) after step (i), conveying the mixture of pure water and purified adsorbent resin particles to the loading tank and introducing the mixture of pure water and purified adsorbent resin particles onto the top of the collection of the adsorbent resin particles in the loading tank.2. The method of claim 1 , wherein said regenerant tank comprises a baffle near the top of the regenerant tank claim 1 , and wherein step (e) is(e) allowing a portion of the collection of the adsorbent resin particles to fall from the bottom of the loading tank into a regeneration tank, to land on a baffle located near the top of the regeneration tank,3. The method of claim 1 , wherein said adsorbent resin particles are ion exchange resin particles.4. The method of claim 1 , wherein said ...

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07-06-2018 дата публикации

Method of Acid Manufacturing Using Ion Exchange Resins

Номер: US20180154347A1
Автор: Grott Gerald J.
Принадлежит:

A method of acid manufacturing using ion exchange resin allows for the production of acids on location where the acid is being utilized to prevent the necessity of transporting the acid. An ion exchange medium provides a medium for substituting hydrogen ions for salt cations within a salt solution in order to protonate the salt solution. As the salt solution becomes protonated to form an acid solution from the respective salt anion as the concentration of hydrogen increases. The ion exchange medium is recharged with a hydrogen ion source solution. The ion exchange resin is safe to transport even while charged with hydrogen ions. 1. A method of acid manufacturing using ion exchange resins comprises the steps of:(A) providing a salt solution, an ion exchange medium, an ion exchange vessel, a hydrogen ion source solution, and a quantity of salinated solution;(B) protonating the ion exchange medium with the hydrogen ion source solution to charge the ion exchange resin with hydrogen ions;(C) rinsing the ion exchange medium with the quantity of salinated solution to remove excess of the hydrogen ion source solution from the ion exchange medium;(D) simultaneously filling the ion exchange vessel with the salt solution;(E) submerging the charged ion exchange medium into the salt solution; and(F) protonating the salt solution by substituting the hydrogen ions from the ion exchange medium with cations within the salt solution.2. The method of acid manufacturing using ion exchange resins claim 1 , as claimed in claim 1 , comprises the step of:recharging the ion exchange medium with the hydrogen ion source solution.3. The method of acid manufacturing using ion exchange resins claim 2 , as claimed in claim 2 , wherein a conjugate base anion of the hydrogen ion source solution does not have a precipitating reaction with a cation of the salt solution.4. The method of acid manufacturing using ion exchange resins claim 1 , as claimed in claim 1 , wherein an acid concentration is ...

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23-05-2019 дата публикации

SILVER RECOVERY AS Ag NANOPARTICLES FROM ION-EXCHANGE REGENERANT SOLUTION

Номер: US20190151838A1
Принадлежит:

Silver is recovered as Agnanoparticles from the spent solution obtained from the regeneration of an Ag-loaded ion exchange resin using electrolysis. The reclaimed regenerant solution is recycled and reused in a closed-loop scheme over multiple cycles. The recovered Agnanoparticles are monodisperse, spherical in shape, and have a mean diameter of about 6 nm. 1. A method of recovering silver from silver-containing waste water solution , comprising:(a) providing an ion exchange column comprising an ion exchange resin;(b) introducing the silver-containing waste water solution to the ion exchange column to absorb silver in the ion exchange resin;{'sub': 'x', 'sup': '+', '(c) eluting the loaded ion exchange resin with an acidified thiourea regenerant solution to remove silver from the resin and to obtain a spent regenerant solution containing a thiourea-silver complex, Ag(TU), where x=1-4;'}{'sub': 'x', 'sup': '+', '(d) electrolytically separating the silver from the Ag(TU) complex of the spent regenerant solution by electrodepositing silver onto a substrate, and removing the silver depleted thiourea regenerant solution;'}{'sup': '0', '(e) electrolytically recovering the silver as Agnanoparticles from the silver-deposited substrate by submerging the silver-deposited substrate and a graphite electrode in an electrolyte solution comprising a stabilizing agent comprising citric acid in an electrolytic cell, and applying current to the electrolytic cell; and'}(f) reusing the silver depleted thiourea regenerant solution removed in step (d) in subsequent elution of loaded ion exchange resin.2. The method of claim 1 , wherein the ion exchange resin comprises a thiol functionalized ion exchange resin.3. The method of claim 1 , wherein the ion exchange resin comprises a macroporous polystyrenic acidic cation exchange resin containing thiol functional groups.4. The method of claim 1 , wherein the recovered Agnanoparticles have about 100% purity.5. The method of claim 1 , wherein ...

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23-05-2019 дата публикации

MINERAL WATER ACQUISITION DEVICE

Номер: US20190152810A1
Автор: IKUTA Kazumasa
Принадлежит: TECHNO SYSTEM CO., LTD.

A portable mineral water acquisition device that has an internal power supply, a drive pump, and the like includes, in a portable housing: a control unit that receives electric power from a battery; the drive pump that is controlled by the control unit and uses the battery as an electric power supply; and a water purification device that softens treated water that is pumped by the drive pump and produces delicious water. 1. A mineral water acquisition device comprising , in a portable housing:a battery that stores electricity;a control unit that receives electric power from the battery;a drive pump that is controlled by the control unit and uses the battery as an electric power supply; anda water purification device that softens treated water that is pumped by the drive pump and produces delicious water, whereinthe housing is composed of a box-shaped main body that has an opening in an upper end and a case-shaped lid body that is provided in an openable/closable manner in the box-shaped main body,the water purification device is configured by a first water purification tank that is connected to a treated water supply pipe, provided in a single flow path that has a flow path switching valve, and includes an ion-exchange resin, a second water purification tank that is disposed on the flow path and includes a filter material, and a mineral addition tank that is disposed on the flow path, andduring regeneration of the ion-exchange resin, a first flow path switching valve on the second water purification tank side is switched to a “closed” state and a second flow path switching valve on a discharge pipe side is switched to an “open” state, the first water purification tank is filled with regeneration water from the treated water supply pipe by driving force of the drive pump that is driven, the drive pump is subsequently stopped, and after regeneration, the drive pump is started again, and the regeneration water in the first purification tank is discharged through the ...

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24-06-2021 дата публикации

ZIRCONIUM OXIDE MODULE CONDITIONING

Номер: US20210187481A1
Принадлежит: Medtronic, Inc.

The invention relates to devices, systems, and methods for conditioning a zirconium oxide sorbent module for use in dialysis after recharging. The devices, systems, and methods can provide for conditioning and recharging of zirconium oxide in a single system, or in separate systems. 1. A method of conditioning zirconium oxide , comprising the steps of:pumping a conditioning solution through a zirconium oxide sorbent module in a flow path; andconditioning the zirconium oxide sorbent module using the conditioning solution comprising sodium bicarbonate at a desired zirconium oxide effluent pH.2. The method of claim 1 , further comprising the step of pumping a base solution through the zirconium oxide sorbent module to recharge zirconium oxide in the zirconium oxide sorbent module prior to conditioning the zirconium oxide sorbent module.3. The method of claim 2 , wherein the base solution is a sodium hydroxide solution.4. The method of claim 1 , further comprising the step of pumping the conditioning solution through a zirconium phosphate sorbent module prior to pumping the conditioning solution through the zirconium oxide sorbent module.5. The method of claim 4 , wherein the flow path is a dialysate flow path comprising the zirconium phosphate sorbent module and zirconium oxide sorbent module.6. The method of claim 4 , wherein the flow path is a recharging flow path comprising the zirconium phosphate sorbent module and zirconium oxide sorbent module.7. The method of claim 6 , wherein the recharging flow path is in a recharger.8. The method of claim 1 , wherein the desired zirconium oxide effluent pH is between 5 and 7.5.9. The method of claim 1 , further comprising the step of generating the conditioning solution in the flow path.10. The method of claim 9 , wherein the step of generating the conditioning solution comprises mixing a sodium bicarbonate solution with acid.11. The method of claim 9 , wherein the step of generating the conditioning solution comprises mixing ...

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24-06-2021 дата публикации

Composite Extractant-Enhanced Polymer Resin, Method of Making the Same, and Its Usage for Extraction of Valuable Metal(s)

Номер: US20210187492A1
Принадлежит:

A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, front an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of ran earth metals from acid-leaching slurries or solutions. 124-. (canceled)25. A composite extractant for extracting rare earth metals from an acid-leaching slurry or an acid-leaching solution , the composite comprising:an extractant and a polymer resin, the polymer resin having at least one resin functional group, wherein the at least one resin functional group includes an anion functional group and/or a cation functional group;26. The composite of claim 25 , wherein the extractant is one of cationic claim 25 , anionic claim 25 , or a combination thereof.27. The composite of claim 25 , wherein the extractant comprises a cation extractant having at least one functional group selected from organophosphorus acids claim 25 , carboxylic acids claim 25 , and sulfonic acids.28. The composite of claim 25 , wherein the extractant comprises an anionic extractant having at least one amine functional group.29. The composite of claim 25 , wherein the extractant comprises at least one of di(2ethylhexyl)phosphoric acid (DEHPA) claim 25 , 2-ethyl-hexyl-2-ethyl-hexyl-phosphoric acid claim 25 , tri-butyl phosphate claim 25 , versatic acid claim 25 , and versavic 10.30. The composite of claim 25 , wherein the polymer resin is porous.31. The composite of claim 25 , wherein the at least one resin functional group ...

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