Способ получения фотокатализатора на основе висмутата щелочноземельного металла

Изобретение относится к способу получения фотокатализатора на основе висмутата щелочноземельного металла, который заключается в растворении смеси порошков нитрата висмута Bi(NO)и неорганической соли щелочноземельного металла Me с последующим выстаиванием продуктов их гидролиза до образования частиц с равномерно распределенными в их объеме ионами висмута и неравномерно распределенными ионами щелочноземельного металла и удалением из продуктов гидролиза избыточной влаги, в нагреве полученных частиц до образования частиц в виде гетероструктуры из аморфного по структуре и стехиометричного по составу висмутата щелочноземельного металла и аморфного по структуре и стехиометричного по составу оксида висмута BiOс последующей их кристаллизацией. При этом в качестве неорганической соли щелочноземельного металла Me берут оксалат щелочноземельного металла MeCO, предварительно перед растворением оксалат щелочноземельного металла MeCOочищают от адсорбированных соединений и смешивают с нитратом висмута ...

КАТАЛИЗАТОР И СПОСОБ КОНВЕРСИИ АММИАКА

Изобретение относится к катализаторам для процесса окисления аммиака в производстве слабой азотной кислоты. Описаны катализатор конверсии аммиака в оксид азота (II) блочной сотовой структуры, имеющий форму прямоугольной призмы или наклонной призмы с углом наклона 0-45°С, с коэффициентом термического расширения в интервале 10-7-10-5 К-1 в области температур до 900°С, на основе смешанных оксидов, представляющий собой смешанные оксиды общей формулы: ! xMe1O·yMe2O·(1-x-y)(2MgO·(2-z)Al2O3·(5+z)SiO2), ! где x=0,03-0,25; y=0.01-0.1; z=0-2; Me1 - активный компонент; Ме2 - структурный промотор, и способ каталитической конверсии аммиака, включающий пропускание реакционной газовой смеси, содержащей аммиак и кислородосодержащий газ, через двухступенчатую каталитическую систему, сформированную различными способами, в том числе в комплекте с улавливающими платиноидными сетками и/или инертными насадками, во второй ступени используют заявленный катализатор. Технический эффект - катализатор обладает высокой ...

КАТАЛИЗАТОР ПОЛУЧЕНИЯ ЗАКИСИ АЗОТА И СПОСОБ

Изобретение относится к катализаторам и способам получения закиси азота (N2O) путем окисления аммиака кислородом или кислородсодержащим газом. Закись азота находит широкое применение в различных областях народного хозяйства: в полупроводниковой, парфюмерной, медицинской и пищевой промышленности. Описан катализатор и способ получения закиси азота путем окисления аммиака кислородом или кислородсодержащим газом, включающим марганецсодержащий активный компонент, оксид железа, оксид щелочноземельного металла и оксид алюминия. Катализатор содержит в качестве активного компонента композицию, представляющую собой смешанную аморфную оксидную фазу нестехиометрического состава MnBixOy (0,05≤x≤2,24; 2,08≤y≤5,36) или смесь MnBixOy и марганецсодержащей кристаллической фазы. Процесс получения закиси азота путем окисления аммиака кислородом или кислородсодержащим газом в присутствии марганецсодержащего катализатора вышеуказанного состава проводят при температуре 250-450oС. Технический эффект - получение ...

КАТАЛИЗАТОР ПОЛУЧЕНИЯ ЗАКИСИ АЗОТА И СПОСОБ

... 1. Катализатор для получения закиси азота путем окисления аммиака кислородом или кислородсодержащим газом, включающий марганецсодержащий активный компонент и оксид алюминия, отличающийся тем, что он содержит в качестве активного компонента композицию, представляющую собой смешанную аморфную Mn-R оксидную фазу нестехиометрического состава MnRx Oy(0,05≤x≤2,24; 2,08≤у≤5,36), где R - висмут и/или лантаноид, а также оксид железа и оксид щелочноземельного металла при содержании компонентов, мас.%: MnRxOy 0,75-65,0 Оксид алюминия 99,24-0,005 Оксид железа 0,005-99,24 Оксид щелочноземельного металла 0,005-99,24 при этом расчетное содержание компонентов составляет, мас.%: Марганец (в пересчете на MnO2) 0,5-35,0 Висмут и/или лантаноид (в пересчете на R2 О3) 0,25-30,0 Оксид алюминия 0,005-99,24 Оксид железа 0,005-99,24 Оксид щелочноземельного металла 0,005-99,24 2. Катализатор по п.1, отличающийся тем, что он содержит оксид марганца Mn2O3. 3. Катализатор по пп.1 и 2, отличающийся тем, что он содержит ...

Катализатор получени закиси азота и способ

... 1. Катализатор для получения закиси азота путем окисления аммиака кислородом или кислородсодержащим газом, включающий марганецсодержащий активный компонент, отличающийся тем, что он содержит в качестве активного компонента композицию, представляющую собой смешанную аморфную Mn-Bi оксидную фазу нестехиометрического состава MnBixOy (0,05≤x≤2,24; 2,08≤y≤5,36), оксид лантана, оксид железа и оксид щелочноземельного металла при содержании компонентов, мас.%: MnBixOy 0,75÷65,0 Оксид железа 0,005÷99,24 Оксид лантана 0,005÷99,24 Оксид щелочноземельного металла 0,005÷99,24 при этом расчетное к содержание компонентов составляет, мас.%: Марганец (в пересчете на MnO2) 0, 5÷35,0 Висмут (в пересчете на Bi2O3) 0,25÷30,0 Оксид железа 0,005÷99,24 Оксид лантана 0,005÷99,24 Оксид щелочноземельного металла 0,005÷99,24 2. Катализатор по п.1, отличающийся тем, что он содержит оксид марганца Mn2О3. 3. Катализатор по пп.1 и 2, отличающийся тем, что он содержит кристаллическую фазу состава Bi2Mn4O10. 4. Катализатор ...

Устройство для модулирования напряжения

Катализатор для очистки газов от органических веществ

Катализатор для гидрирования нитробензола в анилин

Катализатор для синтеза бутиндиола

Способ получения акрилонитрила

VERFAHREN ZUR HERSTELLUNG VON MIT WISMUT MODIFIZIERTEM, SPHAEROIDISCHEM MALACHIT

Verfahren und Katalysator, mit einer Lanthanidverbindung als Promotoradditiv für die Direktsynthese von Dimethyldichlorsilan.

Verfahren zur Herstellung von abriebsbestaendigen,festen Katalysatoren,die Antimonoxyd enthalten und zur Verwendung bei Wirbelschichtumsetzungen geeignet sind

PROCESS FOR THE OXIDATIVE CATALYTIC DEHYDROCYCLIZATION OF SUBSTITUTED AROMATIC COMPOUNDS

... 1320029 Iron and uranium antimonates SNAM PROGETTI SpA 16 Got 1970 [16 Oct 1969 (3)] 49367/70 Heading C1A [Also in Division C2] An iron antimonate is prepared by melting Fe(NO 3 ) 3 .6H 2 O, adding to the melt small quantities of Sb 2 O 3 and heating the mixture until all nitrous oxide vapours, the compound then being activated by heating consecutively for 12 hrs. at 150‹ C., 16 hrs. at 400‹ C., 12 hrs. at 650‹ C., 12 hrs. at 750‹ C. and 48 hrs. at 850‹ C. A uranium antimonate was prepared by dissolving metallic antimony dust in conc. HNO 3 , dissolving uranyl nitrate in water, combining the the two solutions and adjusting the pH of the combined solutions to about 8 by adding aqueous ammonia, the precipitate then being filtered, washed and, after the addition of 30% NH 4 HCO 3 calcined at 750‹ C.

Improvements in or relating to catalysts for the synthesis of hydrocarbons

A composite catalyst of iron oxide and an alkali metal pyroantimonate (see Group III), is used to synthesize hydrocarbons from a one to one hydrogen carbon monoxide mixture at a feed rate of 200 volumes per hour a temperature between 450 DEG and 675 DEG F. and a pressure between 120 and 500 pounds per square inch gauge.ALSO:A Fischer-Tropsch synthesis catalyst is prepared by heating a mixture of a major proportion of iron oxide and a minor proportion of an alkali metal pyroantimonate in a free oxygen containing atmosphere, then reducing at elevated temperature. The oxidation temperature is 1000 DEG F. and the reduction temperature 500-700 DEG F. The iron oxide is the alpha, gamma or ferro-ferric oxide. 80 per cent to 99.8 per cent by weight of oxide are used, the remainder being pyroantimonate. Ferro-ferric oxide and potassium pyroantimonate are mixed and slurried with alcohol. The paste is dried and ground to pass a 30-mesh screen and formed into pills which can be used in fixed bed or ...

Ammoxidation of propane and preparation of catalyst therefor

PROCESS FOR THE PRODUCTION OF ACRYLONITRILE

... 1382733 Acrylonitrile BP CHEMICALS INTERNATIONAL Ltd 10 Sept 1973 [5 Oct 1972] 45959/72 Heading C2C Acrylonitrile is produced in a process which comprises reacting at an elevated temperature and in the vapour phase propylene, molecular oxygen and ammonia over a catalyst which is an oxide composition comprising Sb and Ti and one or more of the oxides of Cu, Mg, Zn, Cr, Mn, Mo, W, Fe, Co, Ni, In, As, Bi, Te and V.

Process for preparing continuous phase silica gel catalyst for preparation of alkynols

In the preparation of a catalyst useful for making alkynols from carbonyl compounds and acetylene hydrocarbons, a carrier consisting of continuous phase silica gel having a surface area of from 300-340 sq. m./gm. is impregnated with a HNO3 solution of Bi(NO3)35H2O containing from 2-9% of Bi, the carrier is heated to 95 DEG -150 DEG C. to remove HNO3 and then fired at 450 DEG -500 DEG C. for 2-3 hours before reimpregnating with a HNO3 solution of Cu(NO3)2, repeating the heating and firing stages as above followed by further firing at 500 DEG -700 DEG C. for 2-100 hours so as to yield a catalyst having an average copper content of from 10-20%, 16-25% of copper being found adjacent the catalyst surface. In a modification the carrier has a surface area up to 350 sq. m./gm., the further firing is effected at 500 DEG C. for 2 1/2 hours and at 600 DEG C. for a further 2 1/2 hours such that the catalyst has a uniform copper content of from 14-20% adjacent its surface. Specifications 807,581, 937,887 ...

Improvements in or relating to the production of conjugated diolefines

Conjugated diolefines are prepared by reacting a mono-olefin containing not less than 4 carbon atoms in the vapour phase with molecular oxygen over an oxide composition containing antimony and iron as oxidation catalyst. The oxide composition may be a mixture of the metal oxides or a compound containing both metals, i.e. iron antimonate. The compositions are prepared (1) by mixing the metal oxides or compounds, e.g. hydroxides, nitrates and basic nitrate which on heating give the oxides, (2) by mixing antimony and iron salts, neutralizing the mixture with ammonia and recovering the precipitate. Catalyst activity is increased by preheating the oxide composition to 500 DEG to 1100 DEG C. and the oxide composition may be on a support, e.g. silica. Mono-olefine used are butene-1, butene-2, 3-methylbutene-1 and 2-methylbutene-2 and these may be present in amounts of 1% to 25% by volume of the feed gas which may also contain 1 to 21% by volume of oxygen and a diluent, e.g. nitrogen or steam.

Improvements in or relating to pyromellitic dianhydride

Pyromellitic dianhydride is made by oxidizing 2,5-di-(methoxymethyl)-1,4-xylene with O2 in presence of V2O5 at 350-480 DEG C. The catalyst may contain additionally an oxide of Mo, W, Cu, Ni and or P, as well as K2SO4.ALSO:Specified oxidation catalysts contain (1) 6% V2O5, 4% MoO3, 0.1% K2So4, 0.05% P2O5 and 0.5% CuO or Al2O3 (corundum); (2) 8% V2O5 8% K2SO4, 0.25% NiO, 2% MoO3 and 0.02% P2O5 on Al2O3 (porous beads); (3) 15 g V2O5 per litre contact space, applied to Al-V turnings with a 5% V content.

Production of alkynols and alkynediols

Alkynols (including alkyndiols) are made by reacting aldehydes or ketones with acetylene (see Group IV (b)) in the presence of a catalyst made by depositing copper oxide on a siliceous carrier which is then heated to a temperature of 400 DEG to 800 DEG C., by which a surface layer of copper silicate is formed. Preferably a little bismuth oxide is present with the copper oxide. The metal silicate prevents the formation of cuprene. Kaolin, silica gel, or fuller's earth may be used as the carrier, but preferably kaolin is mixed with an organic binder, formed into shapes and roasted at 800 DEG to 850 DEG C. to burn out the binder, and finally heated at 1000 DEG to 1200 DEG C. to impart a mullite-like structure. Binders specified are, polyacrylic acid, alginic or pectic acid, polyvinyl methyl ether or methyl cellulose. In examples, the calcined carrier is impregnated with a solution containing copper nitrate or nitrite, bismuth nitrate and dilute nitric acid. The pulp is extruded, and the shaped ...

PROCEDURE FOR THE PRODUCTION AN ANTIMONY OF AN ABSTENTION OF MIXTURE METALLIC OXIDE CATALYST AND SO RECEIVED CATALYST

PROCEDURE FOR THE PRODUCTION OF UNGESATTIGTEN NITRILES

PROCEDURE FOR THE PRODUCTION OF ANTIMONY ABSTENTION METALLIC OXIDE CATALYSTS.

Procedure for the production of a catalyst composition

PROCEDURE FOR THE PRODUCTION OF FIGURATION, POROSEN OXIDATION CATALYSTS

Catalyst for the oxidation of alkenes

Procedure for the oxydativen dehydrogenation of Olefinen

Catalyst for the production of α-ßungesättigten nitriles from Olefinen

Method for the catalytic conversion of gases with a high sulfur dioxide content

PROCESS FOR THE PRODUCTION OF ANTIMONY-CONTAINING METAL OXIDE CATALYSTS

PROCESS FOR PREPARING UNSATURATED NITRILES BY CATALYTIC AMMOXIDATION OF SATURATED ALDEHYDES IN THE GAS PHASE

AGGLOMERATES OF MALACHITE CRYSTALS AND METHOD FOR THEIR PREPARATION

PREPARATION OF BISMUTH-MODIFIED SPHEROIDAL MALACHITE

PROCESS FOR TRANSFORMING ACETONITRILE

Verfahren zur Verwertung von Acetonitril, insbesondere des bei der Herstellung von Acrylnitril als Nebenprodukt anfallenden Acetonitrils

Procédé pour préparer des catalyseurs solides contenant de l'antimoine

Verfahren zur Herstellung ungesättigter Nitrile

Composition catalytique, procédé pour sa préparation et utilisation de cette composition

Verfahren zur Herstellung von Carbonylverbindungen

PROCEDE DE PREPARATION DE COMPOSES HETEROCYCLIQUES PAR DESHYDROCYCLISATION OXYDANTE DE COMPOSES AROMATIQUES SUBSTITUES, ET PRODUITS AINSI OBTENUS.

Procédé de préparation de nitriles non saturés

Festkörpervorrichtung zur Umwandlung von Strahlungsenergie in elektrische Energie oder umgekehrt

Procédé de préparation d'un catalyseur

Katalysator

СПОСОБ КАТАЛИТИЧЕСКОГО ПРЕВРАЩЕНИЯ ГАЗОВ С ВЫСОКИМ СОДЕРЖАНИЕМ ДИОКСИДА СЕРЫ

В изобретении описан способ каталитического превращения газовой смеси, содержащей молекулярный кислород и SO2 в количестве от 15 до 60 об.%, за счет ее пропускания сквозь первый слой катализатора, содержащего пентаоксид ванадия, и затем сразу же сквозь второй слой катализатора, содержащего железо. Газовую смесь с температурой на входе от 350 до 600°С направляют в первый слой катализатора, содержащий зернистый катализатор на основе V2O5 и каталитически неактивный инертный материал в количестве от 20 до 80 мас.%. Затем газовую смесь с температурой от 500 до 750°С сразу же направляют во второй слой катализатора. Катализатор второго слоя предпочтительно содержит от 3 до 30 мас.% оксида мышьяка. В результате такого каталитического превращения получают SO3-содержащий газ с объемным соотношением в нем между SO2 и SO3 максимум 0,1.

Катализатор для радиолитического разложения воды

Изобретение относится к радиохимии и может быть использовано в качестве катализатора при радиолизе воды. Сущность изобретения заключается в использовании в качестве катализатора при радиолизе воды димера аква(этилендиаминтетраацетато)висмутата(III) 1,2-динитротетрааминокобальта(III). Выход радиолитического водорода в этом случае возрастает в 31,3 раза по сравнению с некатализированной водой и в 1,3 раза - по сравнению с аналогом - гетероядерным координационным соединением Fe3MnO(OH)(TMAc)7(acac)3, где HTMAc - триметилуксусная кислота, Hacac - ацетилацетон. П. формулы: 1 Фиг.: 3 ...

Тригидрат катена-[(µ2-О,О')-этилендиаминтетраацетато)висмутата(III) гексааквамеди(II) в качестве катализатора в процессе радиолиза воды

Изобретение относится к химии гетерометаллических координационных соединений и радиохимии и может быть использовано в качестве катализатора радиолитического разложения воды. Сущность изобретения заключается в использовании в качестве катализатора тригидрата катена-[(μ2-(O,O′)-этилендиаминтетраацетато)висмутата(III)] гексааквамеди(II) {[Cu(H2O)6][BiEdta]2·3H2O, где H4Edta=(HOOCCH2)2N(CH2)2N(CH2COOH)2}. Радиолитический выход водорода в этом случае возрастает в 40,2 раза по сравнению с некатализируемым процессом и в 1,3 раза по сравнению с аналогом -димером акваэтилендиаминтетраацетатовисмутат(III)1,2-динитротетрааминкобальта(III). П. формулы: 1 Фиг.: 2 ...

Synthetic method of catalyst for improving CO selectivity in electrocatalytic reduction CO2 process

Heavy liquid hydrocarbon synthesis gas preparation of the iron-based catalyst and method of producing same

An air purifier

Process of conversion of hydrocarbons

PREPARATION OF SPHEROID MALACHITE MODIFIEE BY BISMUTH

PRODUCTION OF AROMATIC AND HETEROAROMATIC NITRILES

CATALYSTS CONTAINING ANTIMONY OXIDE AND PROCESS FOR THEIR PRODUCTION

CATALYTIC AMMOXIDATION OF ALKANES

PROCESS FOR THE PREPARATION OF OXIDATION CATALYSTS AND CATALYSTS OBTAINED THEREBY

CATALYST OF CERAMIC SUPPORTED ON METAL FOR WATER GAS SHIFT REACTION AND METHOD FOR PREPARING THE SAME

PURPOSE: Provided is a supported ceramic on metal catalyst for water gas shift reaction, in which the catalyst has higher catalytic activity and thermal stability than supported metal on ceramic catalyst, and further provided is a method for preparing the same. CONSTITUTION: The catalyst comprises metal carrier such as gold, silver, copper, nickel, zinc, chrome and aluminum and ceramics supported on the metal carrier, wherein the ceramic is ceria, zirconia, bismuth, perovskite or bismuth oxides. The method comprises the steps of (a) on one or more metal selected from a group consisted of gold, silver, copper, nickel, zinc, chrome and aluminum, supporting ceramics based on ceria, zirconia, bismuth, perovskite or bismuth oxides, (b) drying the ceramics supported on metal at room temperature, (c) oxidizing the ceramics at a temperature of 500 to 1000°C, and (d) reducing the ceramic on metal at a temperature of 300 to 450°C in hydrogen ambient. © KIPO 2004 ...

Ammoxidation of alkanes to nitriles

Ammoxidation is carried out by leading the alkane and ammonia, at 350-650 degrees C, over a solid catalyst in which the active components are: (a) the oxides of Sb and a metal chosen from Sn, Fe, U, Ce and Mo, (b) the oxides of any 3 metals chosen from Sb, Sn, Ti, V and U, except for the combination Sb/Sn/V, (c) the oxides of Sn and Mo, (d) the oxides of As and Sn or U, (e) the oxides of Sn and Ti, Zr or Hf, (f) the oxides of V and Cr, Mo or Sn, (g) the oxides of Ti and W, Mo, V, Cr or U, and (h) the oxides of Mo and Bi or Cr, or, in each ase a compound which contains the 2 or 3 chosen metals and oxygen. The partial pressure of the alkane is >0.20 atm. The preparation of acrylonitrile from propane and/or methacrylonitrile from butane is claimed.

CATALYST FOR REMOVING NITROGEN OXIDES FROM EXHAUST STREAMS IN ABSCENCE OF REDUCING AGENTS

A catalyst for the reagentless removal of nitrogen oxides from exhaust streams which includes a Lewis base metal cation, bismuth oxide and a mixture of transition metal cations.

PROCESS FOR PRODUCING COMPOSITE OXIDE CATALYST

A process for producing a composite oxide catalyst which includes a step of preparing an aqueous slurry containing at least iron and antimony and composed of a liquid phase and a solid phase, a step of drying the aqueous slurry to obtain a dried material, and a step of calcining the obtained dried material, wherein of the precipitated particles having a particle size of not less than 1 m but less than 150 m contained within the aqueous slurry, the proportion of precipitated particles having a particle size of not less than 1 m but less than 10 m is within a range from 40 to 90% by volume, and the proportion of precipitated particles having a particle size of not less than 10 m but less than 150 m is within a range from 10 to 60% by volume.

Selective hydrogenation process

A method and catalysts for selective hydrogenation and isomerization which involves contacting a feedstream with hydrogen and with various supported catalysts of metallic arsenides and antimonides, with carbon monoxide being optionally introduced into the reaction as a modifier.

HYDROGENATION AND ETHYNYLATION CATALYSTS

A process for preparing a catalyst includes impregnating a metal oxide carrier with an aqueous solution to form an impregnated carrier; drying the impregnated carrier to form a dried, impregnated carrier; and heat-treating the dried, impregnated carrier in air to form the catalyst; wherein: the aqueous solution includes a copper salt; and from about 3 wt % to about 15 wt % of a C3-C6 multifunctional carboxylic acid; and the catalyst includes from about 5 wt % to about 50 wt % copper oxide.

Catalyst for synthesizing acrylonitrile and process for producing acrylonitrile

СПОСОБ ПОЛУЧЕНИЯ ФОТОКАТАЛИЗАТОРА НА ОСНОВЕ ВИСМУТАТА ЩЕЛОЧНОЗЕМЕЛЬНОГО МЕТАЛЛА И СПОСОБ ОЧИСТКИ ВОДЫ ОТ ОРГАНИЧЕСКИХ ЗАГРЯЗНИТЕЛЕЙ ФОТОКАТАЛИЗАТОРОМ

Изобретение относится к способу получения фотокатализатора на основе висмутата щелочноземельного металла и к способу фотокаталитической очистки воды от органических загрязнителей. Способ получения фотокатализатора включает растворение нитрата висмута и нитрата щелочноземельного металла в растворителе, в качестве которого выбирают водный раствор многоатомного спирта, содержащий не менее пяти атомов углерода, с последующим отжигом прекурсора при 550-650°С до образования наночастиц аморфного висмутата щелочноземельного металла нестехиометрического состава со степенью окислении, не равной двум. Причем перед отжигом прекурсора его выпаривают до образования органической матрицы с равномерно распределенными атомами висмута и щелочноземельного металла. Затем формируют кристаллическую решетку фотокатализатора при 650-750°С. При осуществлении очистки воды от органических загрязнителей фотокатализатором, отношение массы очищаемой воды к массе фотокатализатора выбирают из интервала 1000/1-1600/1, а ...

КАТАЛИЗАТОР ДЛЯ ПОЛУЧЕНИЯ НИТРИЛА АКРИЛОВОЙ КИСЛОТЫ И ЦИАНИСТОГО ВОДОРОДА

Катализатор, содержащий совокупность каталитических оксидов железа, висмута, молибдена и кальция, которая характеризуется следующей эмпирической формулой: AaBbCcDdFee BifMo12Ox, в которой А - один или несколько элементов из лития, натрия, калия, рубидия и цезия или их смесей, В - один или несколько элементов из магния, марганца, никеля, кобальта, серебра, свинца, рения, кадмия и цинка или их смесей, С - один или несколько элементов из церия, хрома, алюминия, германия, лантана, олова, ванадия и вольфрама или их смесей, D - один или несколько элементов из кальция и стронция, бария или их смесей, и а равно от 0,01 до 1,0; b и е = 1,0-10; с, d и f равны от 0,1 до 5,0 и х является числом, определяемым требованиями валентности других присутствующих элементов. Катализатор обеспечивает повышенный выход побочного продукта - цианистого водорода - без значительного уменьшения выхода ненасыщенного нитрила. 17 з.п. ф-лы, 2 табл.

СПОСОБ ПОЛУЧЕНИЯ 1,4-БУТИНДИОЛА

Изобретение относится к химической технологии, точнее к усовершенствованному способу получения катализатора и синтеза 1,4-бутиндиола из ацетилена и формальдегида. Предложено получать катализатор синтеза 1,4-бутиндиола на основе каолина, который смешивают с водой в соотношении 3,5 : 1, формуют из полученной пасты экструдаты, сушат их при 120-160°С, прокаливают при 900-1100oС и охлаждают. Из полученного носителя готовят катализатор, пропитывая его водным раствором нитратов солей металлов, содержащим в пересчете на металл, г/дм3: меди 200-230, никеля 2-12 и/или висмута 70-90, и прокаливают пропиточный носитель при 360-480°С. В качестве носителя также используют каолиновый носитель, полученный после регенерации медь-никель-хромового катализатора гидрирования 1,4- бутиндиола в 1,4-бутандиол. Приготовленный катализатор, имеющий состав, мас.%, в пересчете на металл: Cu 3, 0-7,0; Ni 0,05-0,30 и/или Bi 1,0-3,0; каолин до 100, активируют 37%-ным водным раствором формальдегида, барботируя газообразным ...

Катализатор для окисления сернистого ангидрида

Oxidative Dehydrierung von Paraffinen

VERFAHREN ZUR HERSTELLUNG VON ABRIEBSBESTAENDIGEN, FESTEN, EIN ANTIMONOXYD ENTHALTENDEN KATALYSATOREN

Improvements in or relating to the production of unsaturated aliphatic nitriles

Acrylonitrile or methacrylonitrile is produced by reacting at elevated temperatures in the vapour phase propylene or isobutene with oxygen and ammonia over an oxide composition containing antimony with one of the polyvalent metals chromium, cobalt, copper, manganese, nickel and titanium. The oxide composition may be prepared by intimately mixing antimony oxide or hydrated oxide with the other metal oxide or hydroxide or by addition of ammonia or an amine to an aqueous solution of an antimony salt and an aqueous solution or suspension of the other metal salt. Prior to use the catalyst may be heat-treated at 550 DEG to 1100 DEG C. in a molecular oxygen containing gas and, if desired, heated in aqueous nitric acid at about 100 DEG C. washed with water and dried to improve its activity and, if desired, deposited on a support. The vapour phase reaction, which may be performed in a fixed, fluidized or moving bed of catalyst, is preferably performed at 300 DEG to 550 DEG C. and 1 to 5 ats. in ...

PREPARATION OF ALPHA BETA-UNSATURATED ACIDS

... 1447593 Oxidation catalyst MONTEDISON SpA 7 Aug 1974 [9 Aug 1973 13 Aug 1973 (2)] 34905/73 Heading B1E [Also in Division C2] Catalyst compositions comprising oxygen, iron, phosphorous and optionally one or more of lithium, sodium, potassium, rubidium, caesium, calcium, strontium, barium, magnesium, tin and antimony in atomic ratios defined by FeP x Me y Sb t Sn w O z in which Me represents one or more of the alkali or alkaline earth metals listed, x is 0.2 to 25 when t is #0.01 and is 0.2 to 3 when t <0.01, y is 0 to 2, t is 0 to 10, w is 0 to 2, and z is a number to satisfy the average valencies of the other elements present, are used in the carboxylic acids to prepare , # unsaturated aliphatic carboxylic acids (see Divn. C2). The catalyst may be used with conventional support e.g. silica, alumina, silicon carbide, silicaalumina, a silicate, borate or carbonate, in a fixed or fluid bed. Suitable components are listed for the preparation of the catalyst, which may be by admixture of solutions ...

CATALYST PRODUCTION AND OLEFIN CONVERSION

... 1488699 Oxidation or ammoxidation process MONSANTO CO 28 Oct 1974 46508/74 Heading C2C [Also in Division B1] Olefins are oxidized or ammoxidized in the presence of a catalyst comprising antimony, uranium and oxygen which has been prepared by a specified method involving precipitation from a mixture of the sulphates (see Division B1). The catalyst may contain further metals combined with oxygen, e.g. Fe, Co, Ni, Bi, W or Mo. Suitably, the reaction is effected in the vapour phase at 250-650‹ C. using a molar ratio of olefin to oxygen of 0À5 : 1 to 4 : 1 and, in the case of ammoxidation, a molar ratio of ammonia to olefin of 0À5 : 1 to 5 : 1. Several suitable olefin feeds are listed. The exemplified processes are the conversion of propylene to acrolein or acrylonitrile and isobutylene to methacrylonitrile. The conversion of isobutylene to methacrolein and 2-methylbutene-2 or isoprene to 2-cyano-1,3-butadiene are also mentioned.

An improved catalyst

A catalyst comprises a difficultly reducible metal oxide, e.g of zinc, cerium and/or magnesium, admixed with a minor proportion, say 1-6 per cent, of bismuth oxide, and bonded to the surface of a rustable ferrous metal support by a film of rust formed thereon. Suitable materials are chips &c. of pure, wrought or cast iron, of steels, or of ferrous alloys. The mixed oxides may be slurried with water and coated on the previously rusted support, or on an unrusted support and dried, whereby the rust film is formed. Alternatively, the coated unoxidized support may be charged directly into the reaction chamber. The catalyst is suitable for dehydrogenation reactions involving compounds of the formula RR1CHOH, where R is alkyl, aryl, alkaryl, aralkyl or cycloalkyl and R1 is hydrogen, or alkyl, aryl, aralkyl, alkaryl or cycloakkyl, such as methyl, ethyl, propyl, phenyl, benzyl, methyl-phenyl or cyclohexyl.

PROCESS FOR THE PREPARATION OF OXIDATION CATALYSTS AND CATALYSTS OBTAINED THEREBY

... 1342456 Ammoxidation process SNAM PROGETTI SpA 21 April 1972 [23 April 1971] 18744/72 Heading C2C [Also in Divisions B1- B2] Acrylonitrile is produced by the ammoxidation of propylene in the presence of a catalyst prepared by drying a mixture of oxides of Fe and Sb, adding ammonium bicarbonate or urea as porogen, pressing or extruding the mixture and heating to activate the catalyst and remove the porogen.

An improved catalytic process for the preparation of methacrylonitrile

Methacrylonitrile is manufactured by contacting a mixture of isobutylene, ammonia and oxygen at a temperature of 550-1,100 DEG F. with a catalyst composition corresponding to the formula SbaFebOc, in which a is a number from 1 to 99, b is a number from 50 to 1 and c is a number which satisfies the average valencies of antimony and iron in the oxidation states in which they exist in the catalyst. In the mixture of isobutylene, ammonia and oxygen used, the molar ratio of ammonia to isobutylene is from 0.05:1 to 5:1 and the molar ratio of oxygen to isobutylene is from 0.5:1 to 4:1. If desired the catalyst may be supported on conventional supports and may be activated before use by heating. Saturated hydrocarbons, water and diluents such as nitrogen and oxides of carbon may be present in the reaction mixture. Specifications 867,438 and 876,446 are referred to.

Improvements in or relating to the production of unsaturated aliphatic nitriles

Acrylonitrile is prepared by reacting at an elevated temperature in the vapour phase propylene, molecular oxygen, and ammonia over an oxide composition comprising antimony, uranium, oxygen and a polyvalent metal of atomic number 22 to 41, 44 to 49, 73, 77 to 83, or 90 as catalyst. The polyvalent metal is preferably Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ge, Zr, In, Ta, Tl or Pb. Examples are given in which the polyvalent metal is (a) copper, (b) iron, and (c) titanium. Acrolein is obtained as a by-product.ALSO:Catalysts for the reaction of propylene with ammonia and molecular oxygen (see Division C2) are oxide compositions comprising antimony, uranium, oxygen, and a polyvalent metal of atomic number 22-41, 44-49, 73, 77-83, or 90, many such metals being specified. Examples describe the preparation of catalysts in which the polyvalent metal is (1) copper, (2) iron, and (3) titanium.

PROCESS FOR THE PRODUCTION OF METHACRYLONITRILE

... 1382521 Ammoxidation catalyst NITTO CHEMICAL INDUSTRY CO Ltd 10 March 1972 [12 March 1971] 11361/72 Heading B1E [Also in Division C2] An ammoxidation catalyst has the empirical formula Fe 10 W a X b Me c O d wherein: X. is one or more of P, B or Te; M e is V and/or Mo; a=1-30; b=0.01-15; c=0.01-5; and d= 12-143. The catalyst may be combined with a carrier, e.g. 10-90% wt (of entire catalyst) of silica, alumina zirconia, magnesia, silicaalumina, silicon carbide or inorganic silicate. The preparation of the catalyst includes a calcination step, e.g. at 400-950‹C for 2-48 hrs. The Examples describe catalyst oompositions combined with silica supports.

Process for making vinyl esters

In the production of vinyl esters by the vapour phase reaction of acetylene with an organic acid at 130-350 DEG C. in the presence of a zinc acetate or cadmium acetate catalyst on an activated carbon carrier, the formation of acetylene polymers on the catalyst, due to the presence of copper in the carbon carrier, is prevented by adding bismuth iodide or bismuth oxyiodide to the catalyst in an amount of 0.001-0.5 per cent by weight of the carrier (see Group III). The organic acid may be acetic, propionic, or butyric acid. In an example, vinyl acetate is prepared by passing a mixture of acetylene and acetic acid vapour through cooled catalyst tubes at a temperature of 180-210 DEG C.ALSO:Bismuth iodide or oxyiodide is added to a zinc acetate or cadmium acetate catalyst supported on an activated carbon carrier in order to prevent the formation of acetylene polymers (due to the presence of copper in the carbon carrier) during the use of the catalyst in the production of vinyl esters by the vapour ...

Sandwichförmiges electrode system, in particular semiconductor electrode system, and procedure for its production

Procedure for the production of Methacrylonitril from Isobuten

PROCEDURE FOR THE PRODUCTION OF AN AMINE

PROCEDURE FOR THE PRODUCTION OF A ANTIMONHALTIGEN, ON SILICON DIOXIDE CARRYING OXIDE CATALYST FOR THE USE IN A FLUID BED REACTION.

PROCESS AND CATALYST COMPRISING A LANTHANIDE COMPOUND AS PROMOTER ADDITIVE FOR THE DIRECT SYNTHESIS OF DIMETHYLDICHLOROSILANE

Cobalt catalyst precursor

Method for the catalytic conversion of gases with a high sulfur dioxide content

PROCESS FOR PREPARING UNSATURATED NITRILES BY CATALYTIC AMMOXIDATION OF SATURATED ALDEHYDES IN THE GAS PHASE

CATALYST COMPOSITION

METHOD FOR THE CATALYTIC CONVERSION OF GASES WITH A HIGH SULFUR DIOXIDE CONTENT

A gas mixture containing molecular oxygen and 15 to 60 vol. % SO2 flows through a first catalyst layer containing a catalyst containing vanadium pentoxide and immediately afterwards, through a second catalyst layer containing a catalyst containing iron. Said gas mixture is guided into the first catalyst layer at an entry temperature of 350 to 600 ~C, said first catalyst layer containing a granular V205 catalyst and 20 to 80 wt. % catalytically inactive inert material. Immediately afterwards, the gas mixture is guided into the second catalyst layer at a temperature of 500 to 750 ~C. The catalyst in the second catalyst layer preferably contains 3 to 30 wt. % arsenic oxide. The result is preferably a product gas containing SO3 with a SO2:SO3 volume ratio of at most 0.1.

Тригидрат катена-[(μ2-О,О')-этилендиаминтетраацетато)висмутата(III) гексааквамеди(II) в качестве катализатора в процессе радиолиза воды

Изобретение относится к химии гетерометаллических координационных соединений и радиохимии и может быть использовано в качестве катализатора радиолитического разложения воды. Сущность изобретения заключается в использовании в качестве катализатора тригидрата катена-[(μ2-(O,O′)-этилендиаминтетраацетато)висмутата(III)] гексааквамеди(II) {[Cu(H2O)6][BiEdta]2 ·3H2O, где H4 Edta=(HOOCCH2)2N(CH2)2N(CH2COOH)2}. Радиолитический выход водорода в этом случае возрастает в 40,2 раза по сравнению с некатализируемым процессом и в 1,3 раза по сравнению с аналогом -димером акваэтилендиаминтетраацетатовисмутат(III)1,2-динитротетрааминкобальта(III). П. формулы: 1 Фиг.: 2 ...

PROCESS FOR THE PRODUCTION OF NITRILES USING A CATALYST BASED ON ANTIMONY AND IRON

A compound of the formula SbFeO(1) in which x varies from 0.4 to 1 inclusive and y varies from 1.6 to 4 inclusive, may be used as a catalyst for catalysing the ammoxidation reaction of an alcohol of following formula (II) CH═C(R)—CH—OH (II) in which Rrepresents a hydrogen atom or a methyl radical, to give nitrile of following formula (III) CH═C(R)—C≡N (III) in which Rhas the same meaning as in above formula (ii), the said reaction being carried out in the gas phase, the said gas phase comprising at least oxygen and ammonia. The present invention also relates to the process for the ammoxidation of an alcohol of formula (II) employing a compound of formula (I) as catalyst. 1. A method for catalysing the ammoxidation reaction of an alcohol , said method comprising the steps of: {'br': None, 'sub': x', '1', 'y, 'SbFeO\u2003\u2003(I)'}, 'obtaining a compound having the formula (I)in which x varies from 0.4 to 1 inclusive and y varies from 1.6 to 4 inclusive,{'sub': 2', '2', '2, 'sup': 1', '1', '1', '1, 'catalysing the ammoxidation reaction of an alcohol using said compound, where said alcohol has the following formula (II) CH═C(R)—CH—OH (II), in which Rrepresents a hydrogen atom or a methyl radical, to give a nitrile of following formula (III) CH═C(R)—C≡N (III), in which Rhas the same meaning as in the above formula (II),'}wherein said reaction is carried out in the gas phase, the said gas phase having at least oxygen and ammonia.2. Process for the production of a nitrile from an alcohol in he presence of a catalyst , said method comprising: {'br': None, 'sub': 2', '2, 'sup': '1', 'CH═C(R)—CH—OH\u2003\u2003(II)'}, 'a stage of ammoxidation of an alcohol of following formula (II){'sup': '1', 'in which Rrepresents a hydrogen atom or a methyl radical,'} {'br': None, 'sub': '2', 'sup': '1', 'CH═C(R)—C≡N\u2003\u2003(III)'}, 'to result in a nitrile of following formula (III){'sup': '1', 'in which Rhas the same meaning as in the above formula (II),'} {'br': None, 'sub': x', '1', ...

METHOD FOR PRODUCING ACRYLONITRILE

The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst consists of particles containing Fe, Sb, and Te, and the vapor phase catalytic ammoxidation process is performed while maintaining a B/A in the range of 2.0 to 5.0, where A denotes an atomic ratio of Te/Sb in a bulk composition of the fluidized bed catalyst and B denotes an atomic ratio of Te/Sb in a surface composition of the particles of the fluidized bed catalyst. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. 1. A method for producing acrylonitrile , the method comprising a vapor phase catalytic ammoxidation process of performing a vapor phase catalytic ammoxidation by bringing a source gas containing propylene , molecular oxygen , and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile ,wherein the fluidized bed catalyst consists of particles containing Fe, Sb, and Te, andthe vapor phase catalytic ammoxidation process is performed while maintaining a B/A in the range of 2.0 to 5.0, where A denotes an atomic ratio of Te/Sb in a bulk composition of the fluidized bed catalyst and B denotes an atomic ratio of Te/Sb in a surface composition of the particles of the fluidized bed catalyst.2. The method for producing acrylonitrile according to claim 1 , wherein the bulk composition of the fluidized bed catalyst is represented by the following Formula (1).{'br': None, 'sub': 10', 'a', 'b', 'c', 'd', 'e', 'x', '2', 'y, 'FeSbATeDEO.(SiO)\u2003\u2003(1)'}{'sub': '2', '(in Formula (1), Fe, Sb, Te, O, and SiOrepresent iron, antimony, tellurium, oxygen, and silica, ...

METHOD FOR PRODUCING ACRYLONITRILE

The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 μmol/m. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. 1. A method for producing acrylonitrile , the method comprising a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene , molecular oxygen , and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile ,wherein the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and{'sup': 2', '2, 'the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 μmol/m.'}2. The method for producing acrylonitrile according to claim 1 , wherein the fluidized bed catalyst is represented by the following Formula (1).{'br': None, 'sub': 10', 'a', 'b', 'c', 'd', 'e', 'x', '2', 'y, 'FeSbATeDEO.(SiO)\u2003\u2003(1)'}{'sub': '2', '(in Formula (1), Fe, Sb, Te, O, and SiOrepresent iron, antimony, tellurium, oxygen, and silica, respectively, A represents at least one kind of element selected from the group consisting of vanadium, molybdenum, and tungsten, D represents at least one kind of element selected from the group consisting of magnesium ...

METHOD FOR PRODUCING ACRYLONITRILE

The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing molybdenum and bismuth and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of 0.05 to 0.6 μmol/m. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. 1. A method for producing acrylonitrile , the method comprisingperforming vapor phase catalytic ammoxidation by bringing a source gas comprising propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst thereby obtaining acrylonitrile,wherein the fluidized bed catalyst comprises molybdenum and bismuth, and{'sup': 2', '2, 'the vapor phase catalytic ammoxidation is performed while maintaining an adsorbed amount of ammonia per specific surface area (m/g) of the fluidized bed catalyst in the range of from 0.05 to 0.6 μmol/m.'}2. The method for producing acrylonitrile according to claim 1 , wherein the fluidized bed catalyst is represented by Formula (1).{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'x', '2', 'y, 'MoBiFeADEGO(SiO)\u2003\u2003(1)'}{'sub': '2', 'wherein in Formula (1), Mo, Bi, Fe, O, and SiOrepresent molybdenum, bismuth, iron, oxygen, and silica, respectively,'}A represents at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese, and copper, vD represents at least one element selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, and samarium,E represents at least one ...

METAL-DOPED TIN OXIDE FOR ELECTROCATALYSIS APPLICATIONS

The present invention relates to a metal-doped tin oxide which has a BET surface area of at least 30 m 2/g, and comprises at least one metal dopant which is Sb, Nb, Ta, Bi, W, or In, or any mixture thereof, wherein the metal dopant is present in an amount of from 2.5 at % to 25 at %, based on the total amount of tin and metal dopant atoms, and is in a mixed valence state containing atoms of oxidation state OS1 and atoms of oxidation state OS2, wherein the oxidation state OS1 is >0 and the oxidation state OS2 is >OS1 and the atomic ratio of the atoms of OS2 to the atoms of OS1 is from 1.5 to 12.0. 116.-. (canceled)17. A metal-doped tin oxide which{'sup': '2', 'has a BET surface area of at least 30 m/g, and'}comprises at least one metal dopant which is Sb, Nb, Ta, Bi, W, or In, or any mixture thereof, is present in an amount of from 2.5 at % to 25 at %, based on the total amount of tin and metal dopant atoms, and', 'is in a mixed valence state containing atoms of oxidation state OS1 and atoms of oxidation state OS2, wherein the oxidation state OS1 is >0 and the oxidation state OS2 is >OS1 and the atomic ratio of the atoms of OS2 to the atoms of OS1 is from 1.5 to 12.0., 'wherein the metal dopant'}18. The metal-doped tin oxide according to claim 17 , wherein the amount of the metal dopant is from 2.5 at % to 10.0 at %.19. The metal-doped tin oxide according to claim 17 , wherein the BET surface area of the metal-doped tin oxide is from 30 m/g to 150 m/g and/or the electrical conductivity of the metal doped tin oxide is at least 0.02 S/cm.20. The metal-doped tin oxide according to claim 17 , wherein the atomic ratio of the atoms of OS2 to the atoms of OS1 is from 3.0 and 9.0.21. The metal-doped tin oxide according to claim 17 , wherein the metal dopant is Sb claim 17 , the atoms of oxidation state OS2 are Sb claim 17 , and the atoms of oxidation state OS1 are Sb.22. A process for preparing the metal-doped tin oxide according to claim 17 , comprisingpreparing a metal- ...

Synthesis of Pyrochlore Nanostructures and Uses Thereof

A template-free reverse micelle (RM) based method is used to synthesize pyrochlore nanostructures having photocatalytic activity. In one embodiment, the method includes separately mixing together a first acid stabilized aqueous solution including pyrochlore precursor A and a second acid stabilized aqueous solution including pyrochlore precursor B with an organic solution including a surfactant to form an oil-in-water emulsion. Next, equimolar solutions of the first and second acid stabilized oil-in-water emulsions are mixed together. Then, the mixture of the first and second acid stabilized oil-in-water emulsion is treated with a base to produce a precipitate including pyrochlore precursors A and B. After which, the precipitate is dried to remove volatiles. The precipitate is then calcined in the presence of oxygen to form a pyrochlore nanostructure, such as a bismuth titanate (BiTiO) pyrochlore nanorod. The method of synthesizing the pyrochlore nanorod is template-free. 112-. (canceled)13. A pyrochlore nanostructure having the general formula ABO , wherein A is bismuth (Bi) , calcium (Ca) , strontium (Sr) , yttrium (Y) , barium (Ba) , lanthanum (La) , or combinations thereof; B is titanium (Ti) , vanadium (V) , chromium (Cr) , manganese (Mn) , iron (Fe) , nickel (Ni) , zirconium (Zr) , tin (Sn) , hafnium (Hf) , tantalum (Ta) , tungsten (W) , or combinations thereof; and O is oxygen; and wherein the nanostructure has a spherical or rod shape.14. The pyrochlore nanostructure of claim 13 , wherein the pyrochlore nanostructure is sphere-shaped and has a diameter of about 20 nm.15. The pyrochlore nanostructure of claim 13 , wherein the pyrochlore nanostructure is rod-shaped.16. The pyrochlore nanostructure of claim 15 , wherein the rod-shape pyrochlore nanostructure has an aspect ratio of about 10.17. The pyrochlore nanostructure of claim 15 , wherein the rod-shape pyrochlore nanostructure has a diameter of about 40 nm to about 50 nm claim 15 , and a length of about 400 ...

AMMOXIDATION CATALYST WITH SELECTIVE CO-PRODUCT HCN PRODUCTION

A catalytic composition and process useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, hydrogen cyanide and acetonitrile and mixtures thereof, wherein the catalyst exhibiting increased selectivity to hydrogen cyanide compared to prior art catalysts. 1. A catalytic composition comprising a complex of metal oxides wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'n', 'q', 'x, 'MoBiFeADEFGCeCrQO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon lead and germanium;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury;', 'Q is at least one of samarium, praseodymium and neodymium; and, 'wherein A is at least one element selected from the group consisting of lithium, sodium, potassium, rubidium and cesium;'}a, b, c, d, e, f, g, h, n, m and x are, respectively, the atomic ratios of bismuth (Bi), iron (Fe), A, D, E, F, G, cerium (Ce), chromium (Cr), molybdenum (Mo) and oxygen (O), relative to “m” atoms of molybdenum (Mo), b is 0.1 to 7,', 'c is 0 to 5,', 'd is 0.1 to 12,', 'e is 0 to 5,', 'f is 0 to 5,', 'g is 0 to 0.2,', 'h is 0.01 to 5,', 'm is 10 to 15,', 'n is 0 to 5,', 'q is 0 to 2.476, and', 'x is the number of ...

AMIDE GROUP-CONTAINING POLYETHER-ESTER MATERIAL AND PREPARATION METHOD THEREOF, MOLDED ARTICLE AND FORMING METHOD THEREOF

An amide-group containing polyether-ester material, a preparation method thereof, a molded article and a forming method thereof are provided. The amide-group containing polyether-ester material has an amide group content ranging from 0.5 to 20 mol % and a work of rupture greater than or equal to 90 MJ/m. The molded article includes the amide-group containing polyether-ester material. 2. The method of claim 1 , wherein the polyester has a benzene ring structure comprising a para substituent claim 1 , a meta substituent claim 1 , or a combination thereof.3. The method of claim 1 , wherein the polyester is obtained by an esterification reaction of a carboxylic acid and an alcohol claim 1 , or is obtained by plastic recycling.4. The method of claim 1 , wherein an amine group content of the monoamino alcohol is at least 5 meq/g.5. The method of claim 4 , wherein the amine group content of the monoamino alcohol is in a range of 5 meq/g to 30 meq/g.6. The method of claim 1 , wherein the monoamino alcohol is selected from the group consisting of monoethanolamine claim 1 , diethanolamine claim 1 , triethanolamine claim 1 , n-propanolamine claim 1 , isopropanolamine claim 1 , n-butanolamine claim 1 , isobutanolamine claim 1 , and any combinations thereof.7. The method of claim 1 , wherein the hydroxyalkane is selected from the group consisting of ethylene glycol claim 1 , diethylene glycol claim 1 , triethylene glycol claim 1 , 1 claim 1 ,2-propanediol claim 1 , 1 claim 1 ,3-propanediol claim 1 , 1 claim 1 ,2-butanediol claim 1 , 1 claim 1 ,3-butanediol claim 1 , 1 claim 1 ,4-butanediol claim 1 , 1 claim 1 ,5-pentanediol claim 1 , 1 claim 1 ,6-hexanediol claim 1 , 2-methyl-1 claim 1 ,3-propanediol claim 1 , neopentyl glycol claim 1 , and any combinations thereof.8. The method of claim 1 , wherein a number average molecular weight of the hydroxyalkane oligomer is in a range of 600 to 2 claim 1 ,000.9. The method of claim 1 , wherein the hydroxyalkane oligomer is selected from ...

MIXED METAL OXIDE AMMOXIDATION CATALYSTS

A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising rubidium, bismuth, cerium, molybdenum, iron and other promoters, with a desirable composition. 1. A catalytic composition comprising a complex of metal oxides wherein the relative ratios of the listed elements in said catalyst are represented by the following formula:{'br': None, 'sub': m', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'n', 'x, 'MoBiFeADEFGCeRbO'} D is at least one element selected from the group consisting of nickel, cobalt, manganese, zinc, magnesium, calcium, strontium, cadmium and barium;', 'E is at least one element selected from the group consisting of chromium, tungsten, boron, aluminum, gallium, indium, phosphorus, arsenic, antimony, vanadium and tellurium;', 'F is at least one element selected from the group consisting of lanthanum, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium thulium, ytterbium, lutetium, scandium, yttrium, titanium, zirconium, hafnium, niobium, tantalum, aluminum, gallium, indium, thallium, silicon lead and germanium;', 'G is at least one element selected from the group consisting of silver, gold, ruthenium, rhodium, palladium, osmium, iridium, platinum and mercury; and, 'wherein A is at least one element selected from the group consisting of lithium, sodium, potassium, and cesium; and'} a is greater than 0, but less than or equal to 7,', 'b is 0.1 to 7,', 'c is greater than 0, but less than or equal to 5,', 'd is 0.1 to 12,', 'e is 0 to 5,', 'f is 0 to 5,', 'g is 0 to 0.2,', 'h is 0.01 to 5,', 'm is 10 to 15,', 'n is greater than 0, but less than or equal to 5,', 'x is the number of oxygen atoms required to satisfy the valence requirements of the other component elements present; and, 'a, b, c, d, e, f, g, ...

NOVEL POWDER COATING SYSTEM

A powder coating composition is described. The composition includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The powder composition demonstrates a high degree of cross-linking in the coating and produces a cured coating with optimal crosslinking and corrosion resistance. 1. (canceled)2. (canceled)3. A powder composition , comprising:a binder resin component including at least one crosslinkable polymer resin component;a crosslinking component; andat least an inorganic bismuth-containing compound.4. A method , comprising:providing a metal substrate;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'applying on the substrate a powder coating composition according to ; and'}heating the coated substrate to produce a cured coating.5. The composition of claim 3 , wherein the inorganic bismuth-containing compound is selected from bismuth silicate claim 3 , bismuth magnesium aluminosilicate claim 3 , bismuth aluminate claim 3 , bismuth borate claim 3 , bismuth manganate claim 3 , bismuth hydroxide claim 3 , bismuth trioxide claim 3 , bismuth phosphate claim 3 , and mixtures or combinations thereof.6. The composition of claim 3 , wherein the inorganic bismuth-containing compound is a bismuth salt of a metal oxyanion.7. The composition of claim 3 , wherein the inorganic bismuth-containing compound is bismuth aluminate claim 3 , or a hydrate thereof.8. The composition of claim 3 , wherein the composition includes a combination of an inorganic bismuth-containing compound and an organic bismuth-containing compound.9. (canceled)10. The composition of claim 3 , wherein the combination of an inorganic bismuth-containing compound and an organic bismuth-containing compound is a combination of an inorganic bismuth-containing compound claim 3 , or a hydrate thereof claim 3 , and bismuth citrate.11. The composition of claim 3 , wherein the combination of an inorganic bismuth-containing compound and an organic bismuth- ...

Processes for stabilizing antimony catalysts

The present disclosure relates to a process for stabilizing an antimony ammoxidation catalyst in an ammoxidation process. The process may comprise providing an antimony ammoxidation catalyst to a reactor; reacting propylene with ammonia and oxygen in the fluidized bed reactor in the presence of the antimony ammoxidation catalyst to form a crude acrylonitrile product; and adding an effective amount of an antimony-containing compound to the antimony ammoxidation catalyst to maintain catalyst conversion and selectivity; wherein the antimony-containing compound has a melting point less than 375° C. The present disclosure also relates to catalyst compositions and additional processes using the antimony ammoxidation catalyst stabilized by an antimony-containing compound.

Novel Electrodeposition System

An electrocoat system for electrodeposition is described. The system includes an inorganic bismuth-containing compound or a mixture of inorganic and organic bismuth-containing compounds. The system demonstrates a high degree of crosslinking and produces a cured coating with optimal crosslinking and corrosion resistance. 1. A composition for electrodeposition , comprising:an electrodeposition resin component;optionally, a crosslinking component;optionally, an acid component; andat least an inorganic bismuth salt of a metal oxyanion.2. A method , comprising: a blocked isocyanate component;', 'an aliphatic carboxylic acid component; and', 'at least an inorganic bismuth salt of a metal oxyanion., 'combining an electrodeposition resin component including at least one crosslinkable functional group with'}3. A method for electrodeposition , comprising:providing an emulsion including a cationizable electrodeposition resin component and a blocked polyisocyanate crosslinker component;providing a pigment paste including a dispersion resin, pigment, and an inorganic bismuth salt of a metal oxyanion;mixing the electrodeposition resin and the pigment paste with water to form an electrodeposition bath; andapplying a voltage to cathodically electrocoat a substrate.4. The composition of claim 1 , wherein the inorganic bismuth-containing compound is a compound substantially insoluble in water at a pH of about 4 to 6 and a temperature of about 37° C.5. The composition of claim 1 , wherein the inorganic bismuth-containing compound is selected from bismuth silicate claim 1 , bismuth magnesium aluminosilicate claim 1 , bismuth aluminate claim 1 , bismuth borate claim 1 , bismuth manganate claim 1 , bismuth phosphate claim 1 , and mixtures or combinations thereof.6. The composition of claim 1 , wherein the inorganic bismuth-containing compound is a bismuth salt of a metal oxyanion.7. The composition of claim 1 , wherein the inorganic bismuth-containing compound is bismuth aluminate.8. The ...

Production of attrition resistant solid catalysts containing antimony oxide suitable for use in a fluidized bed reaction

PROCESS FOR PREPARING AN ATTRITION RESISTANT SOLID CATALYST CONTAINING ATIMONY OXIDE, SUITABLE FOR USE IN A FLUIDIZED BED ESSENTIALLY COMPRISING THE HEAT TREATMENT OF A SLURRY CONTAINING AN ANTIMONY COMPOUND, A FERRIC COMPOUND, A POLYVALENT METAL COMPOUND AND A SILICA SOL.

Process for producing particulate iron-antimony containing oxide composition having high compressive strength

There is provided a process for producing a particulate iron-antimony containing oxide composition having high compressive strength, comprising the steps of: providing an aqueous slurry containing iron ions, nitrate ions and antimony trioxide; adjusting the slurry to a pH value in the range of 0.5 to 3 as measured at 40° C.; heating the slurry; spray-drying the heated slurry; and calcining the resultant particles.

Process for production of attrition resistant antimony oxide containing fluidized bed catalyst having controlled particle size distribution

A process for producing an attrition resistant antimony oxide containing fluidized bed catalyst comprising particles within a controlled particle size distribution comprising: (a) preparing a slurry containing a pentavalent antimony compound, one or more polyvalent metal compounds and a silica sol as essential components; (b) adjusting the pH of the above slurry to not more than 7 and heating the slurry at a temperature of from about 40° C to about 150° C for at least 20 minutes while keeping the mixture in a slurry state to form a slurry containing pentavalent antimony; (c) spray-drying the thus obtained slurry to form substantially spherical particles; (d) separating extremely fine particles and/or coarse particles unsuitable for practical use from the above obtained particles and returning these separated particles to the slurry prior to the spray-drying in step (c) as they are or after the pulverization thereof; and (e) calcining the particles from which the extremely fine particles and/or coarse particles have been removed at a temperature of from about 400° C to about 1100° C.

Process for producing styrene from 4-vinylcyclohexene

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스티렌의 제조방법(Process for the production of styrene)

4-비닐시클로헥센을 주석, 안티몬 및 산소를 포함하는 촉매 존재하에서 스티렌으로 전환시킨다. 촉매와 접촉되는 공급 스트림은 물, 4-비닐로헥센 및 산소를 포함한다. 12;1 이상, 바람직하게 14:1 이상의 물:4-비닐시클로헥센의 비는 촉매의 반감기를 상당히 증가시킨다. 상기 촉매는 염화주석 및 염화안티몬을 공침전시킨다음, 침전물을 850℃ 내지 1000℃범위 온도에서 하소시킴으로써 제조된다.

APPARATUS FOR THE MANUFACTURE OF ALPHA NITRILE, BETA NOT SATURATED.

SE PRESENTA UN APARATO PARA PRODUCIR UN NITRILO ALFA, BETA-INSATURADO CON EL MISMO NUMERO DE ATOMOS DE CARBONO QUE EL DE UNA OLEFINA O ALCOHOL T-BUTIL COMO MATERIAL INICIADOR MEDIANTE LA REACCION DE TANTO UN PROPILENO COMO UN ISOBUTILENO O UN ALCOHOL T-BUTIL CON AMONIACO Y UN GAS QUE CONTENGA OXIGENO, DICHO APARATO ESTA CONSTITUIDO POR UN REACTOR; UN SUMINISTRADOR DE GAS INICIADOR PROVISTO HORIZONTALMENTE EN LA PARTE INFERIOR DE UN REACTOR Y EQUIPADO POR UNA PLURALIDAD DE BOQUILLAS PARA EL INSUFLADO DEL GAS INICIADOR SOBRE LA SUPERFICIE INFERIOR DEL MISMO; UN SUMINISTRADOR DEL GAS CON CONTENIDO EN OXIGENO SITUADO POR DEBAJO DEL SUMINISTRADOR DEL GAS INICIADOR EN PARALELO CON EL Y EQUIPADO CON EL MISMO NUMERO DE CONDUCTOS PARA EL INSUFLADO DEL GAS CON CONTENIDO EN OXIGENO QUE EL DE LAS BOQUILLAS PARA EL INSUFLADO DEL GAS INICIADOR SOBRE LA SUPERFICIE SUPERIOR DEL MISMO DE TAL MANERA QUE CADA UNO DE DICHOS CONDUCTOS MIRE A CADA UNA DE DICHAS BOQUILLAS, ALCANZANDO LA DISTANCIA RELATIVA ENTRE CADA CONDUCTO Y CADA BOQUILLA ENTRE 25 Y 300 MM. Y ESTANDO LOS CONDUCTOS DISPUESTOS A UNA DISTANCIA DE ENTRE 90 Y 259 MM. UNOS DE OTROS CON UNA DENSIDAD RELATIVA DE DISTRIBUCION DE ENTRE 16 Y 120/M (AL CUADRADO) CON RELACION A LA SECCION DE CORTE DEL REACTOR. AN APPARATUS IS PRESENTED TO PRODUCE AN ALPHA NITRILE, BETA-UNSATURATED WITH THE SAME NUMBER OF ATOMS OF CARBON AS THAT OF AN OLEPHINE OR T-BUTYL ALCOHOL AS INITIATOR MATERIAL THROUGH THE REACTION OF BOTH A PROPYLENE OR A-ATILL WITH AMMONIA AND A GAS CONTAINING OXYGEN, SUCH A DEVICE IS CONSTITUTED BY A REACTOR; A SUPPLIER OF INITIATOR GAS PROVIDED HORIZONTALLY ON THE BOTTOM OF A REACTOR AND EQUIPPED WITH A PLURALITY OF NOZZLES FOR THE INSULATION OF INITIATOR GAS ONTO THE BOTTOM SURFACE; A GAS SUPPLIER WITH OXYGEN CONTENT LOCATED BELOW THE INITIATOR GAS SUPPLIER IN PARALLEL WITH HIM AND EQUIPPED WITH THE SAME NUMBER OF DUCTS FOR THE INSULATION OF GAS WITH OXYGEN CONTENT AS THAT OF THE NOZZLES FOR GEL INSULATION SUPERIOR SURFACE ...

Preparation of acrylonitrile

An improved process for the preparation of acrylonitrile by the reaction of propylene, ammonia and oxygen in a fluidized catalyst bed in which the propylene and ammonia are premixed and fed in downwardly streams that are directly aligned with upwardly directed streams of an oxygen containing gas under conditions such that there is complete mixing of the gas streams prior to the gases having significant contact with the catalyst.

Apparatus for producing dip-unsaturated nitrile

내용 없음. No content.

竹茎生物碳量子点修饰Bi4Ti3O12复合光催化剂的制备及其应用

本发明属于环境材料制备技术领域，具体涉及竹茎生物碳量子点修饰Bi 4 Ti 3 O 12 复合光催化剂的制备及其应用。本发明制备竹茎生物碳量子点修饰Bi 4 Ti 3 O 12 复合光催化剂的方法具体如下：首先，以竹茎粉末为碳源，通过水热法合成竹茎生物碳量子点；然后，以氧化铋和P 25 为原料，放入管式炉/马弗炉煅烧得到Bi 4 Ti 3 O 12 材料；最后，加入竹茎生物碳量子点和Bi 4 Ti 3 O 12 于一定量乙醇中，超声后将乙醇蒸干，放入管式炉中煅烧，得到竹茎生物碳量子点修饰Bi 4 Ti 3 O 12 复合光催化剂。本发明以竹茎为生物碳源，采用一步水热法得到了竹茎生物碳量子点，相比传统工艺更为绿色、经济、环保；并且制备的复合光催化剂，能够有效利用可见光在抗生素废水中降解环丙沙星，作为环丙沙星废水处理技术有广阔的应用前景。

Cupreous catalyst and process for making same

Improved catalyst is made by including in a grind charge of cupreous particulates a small proportion of hydrated refractory metal oxide such as hydrated alumina. Said grind charge contains a major proportion of cuprous and cupric oxides, a minor proportion of elemental copper, and up to about 10% of promoter material. Such charge is subjected to high energy comminution with concomitant crystal lattice distortion. The catalyst is useful for the production of alkyl and aryl halosilanes.

A kind of catalyst and its preparation method and application handling methylene blue dye wastewater

本发明公开了一种处理亚甲基蓝染料废水的催化剂及其制备方法和应用。所述的催化剂的通式为：CuNiSbSnSi 4 O 13 . 5 ，该方法将硝酸铜、硝酸镍、三氯化锑和四氯化锡在常温常压下完全溶解在水中，在搅拌下滴加硅酸四乙酯，滴加完毕后，继续搅拌直至生成凝胶，然后烘干凝胶并研磨成粉末，经煅烧后获得通式为CuNiSbSnSi 4 O 13 . 5 的催化剂粉体。本发明的催化剂活性高，能在较短的时间内快速高效降解污染物，且废水处理方法在常温常压，无需光照或氧化剂存在下即可进行。工艺流程简单，无二次污染产生，并且运行费用低等特点，有很高的实际应用价值。

The feed distributor of the fluidized-bed reactor reacted for ammoxidation

本发明涉及一种用于氨氧化反应的流化床反应器原料气进料分布器。一种用于氨氧化反应的流化床反应器原料气进料分布器，包括：用于连接原料气入口的主管和与所述主管流体连通的用于分流原料气的支管，主管或支管上具有用于原料气进料的锐孔，其中，在沿原料气流动方向上，主管或支管上的任意一个锐孔的孔径等于或大于紧邻的上游侧锐孔的孔径。根据本发明的用于丙烯氨氧化反应的流化床反应器的丙烯氨进料分布器，通过与导管内的气体温度、压力相关联，来合理的确定锐孔孔径，能够使丙烯氨更加均匀进入流化床反应器内部，从而明显地提高丙烯腈的收率和丙烯的转化率，并显著抑制副反应，降低了CO 2 的量。

Catalyst for preparing acrylonitrile

Process for producing acrylonitrile

Acrylonitrile is produced from propylene in an excellent percent conversion of propylene, percent selectivity to acrylonitrile and percent yield of acrylonitrile, by bringing, at an elevated temperature, a reaction feed containing propylene, molecular oxygen and ammonia, each in gas phase, into contact with a catalyst consisting essentially of an oxide composition of the empirical formula: MoaCobNicFedBieXdTigOh wherein X represents at least one atom of an element selected from vanadium and tellurium; the subscripts a, b, c, d, e, f and g respectively denote the numbers of the respective atoms of the elements, the ratio a:b:c:d:e:f:g being in the range of 10:0 to 10:0 to 10:1 to 7:0.08 to 1.1:0.01 to 1:1 to 15, and the ratio of a to the sum of b and c being in a range of 10:3 to 10, and; the subscript h represents the number of oxygen atoms which satisfies the average valency of the elements, the ratio a:h being in a range of 10:36.7 to 84.1.

A kind of environmental friendliness sections antimony composite oxides denitrating catalyst and preparation method thereof

本发明公开一种环境友好型铁锑复合氧化物催化剂，该催化剂在制备过程中采用均相共沉淀法和水热法相结合的处理工艺，同时利用共沸精馏的技术手段进行后处理，在该金属复合氧化物中铁和锑的氧化物能形成固溶体，其中以金属元素的摩尔比计，铁和锑的摩尔比为0.5~2.0。本发明所制备的催化剂可以在200~400℃范围内显示出优异的脱硝活性、N 2 选择性、反应稳定性及抗水耐硫性能。

A kind of catalysis material and preparation method thereof

本发明提供了一种光催化材料及其制备方法，本发明提供的催化材料，为金属掺杂的球形δ‑Bi 2 O 3 ，其中，所述金属为镍、铝和锌中的一种或几种，其中，本发明通过将镍、铝和锌中的一种或几种金属掺杂在球形δ‑Bi 2 O 3 中，使得得到的光催化材料对NO氧化的反应的催化效率大大提高，且催化稳定性好。

Catalyst composition

1364587 Production of acrylonitrile BP CHEMICALS INTERNATIONAL Ltd 12 March 1973 [17 March 1972] 12607/72 Heading C2C Acrylonitrile is produced by the reaction at elevated temperature in the vapour phase of propylene, molecular oxygen and ammonia over a catalyst which is an oxide composition comprising Sb, Sn, Cu and/or Fe with, one or more of Be, Mg, Ca, Zn, Sr, Cd and Ba.

Photocatalyst nanocomposite prepared based on single-phase bismuth titanate

本发明公开一种基于单相钛酸铋(Bi 20 TiO 32 )制备的光催化剂纳米复合材料，是在用超临界法制备Bi 20 TiO 32 过程中加入少量石墨烯一同反应，使反应形成的Bi 20 TiO 32 均匀的分散在石墨烯片上，这有利于反应物和产物的扩散，进而有利于光催化性能的提高，最后经焙烧晶化形成石墨烯-Bi 20 TiO 32 纳米复合材料。本发明制备过程反应条件温和、实现成本较低，且制备得到的光催化剂纳米复合材料的光催化性能优于单相钛酸铋，具有广泛的运用前景。

Patent JPH0247264B2

Method of production of styrene

在有一种含锡、锑、和氧的催化剂的情况下，使4-乙烯基环已烯转化成苯乙烯。与该催化剂接触的原料流包含水，4-乙烯基环已烯，和氧。水与4-乙烯基环已烯之比高于12∶1，最好高于14∶1明显提高该催化剂的半寿命。该催化剂的制法是，通过使一种氯化锡和一种氯化锑共同沉淀，接着使该沉淀在850℃-1000℃的温度下经受煅烧。

Method for producing metal oxide catalyst containing antimony and tellurium

A kind of composite catalyst for handling the waste gas containing NO and preparation method thereof

本发明涉及一种处理含NO废气的复合催化剂及其制备方法，由氧化催化剂、还原催化剂和催化剂载体组成，所述的氧化催化剂是Sb 2 O 3 和Bi 2 O 3 ；所述的还原催化剂是钙钛矿结构的LaSb 1‑x B x O 3 或LaBi 1‑x B x O 3 ，其中,B代表过渡金属Cr、Mn、Fe、Co,x=0.5‑0.9；所述的催化剂载体是TiO 2 、ZrO 2 、SiO 2 、SnO 2 、Al 2 O 3 、沸石和堇青石之一或二种的混合物。用其10g装填在固定床催化反应器中，在300℃下处理氧化法制备乙醛酸产生的含NO废气，NO的清除率为84%‑93%。本发明复合催化剂不依赖外加NH 3 和CO等还原组分进行NO还原，没有二次污染，具有耐水分和抗硫污染性能好，使用寿命长，运行成本低的特点。

Nano-sheet Bi2Ga4O9Preparation method and application

本发明公开了一种纳米片状Bi 2 Ga 4 O 9 的制备方法，包括如下步骤：以氧化镓和碳酸钠为原料，首先利用固相法制备镓酸钠（NaGaO 2 ）前驱体，然后以NaGaO 2 、氢氧化钠和六水合硝酸铋为原料，在180‑200℃恒温条件下水热反应12‑36h，将获得的沉淀洗涤、离心分离，在80℃的恒温条件下干燥8h，获得纳米片状Bi 2 Ga 4 O 9 ，所述纳米片状Bi 2 Ga 4 O 9 可作为光催化剂使用。本发明的优点在于制备工艺简单易行、安全、能耗低，所制备的纳米片状Bi 2 Ga 4 O 9 对水中有机污染物具有良好的降解性能。

Production of unsaturated nitrile

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method of producing acrylonitrile or metacrylonitrile

In the preparation of acrylonitrile or methacrylonitrile by ammoxidation of propylene or isobutylene with ammonia and molecular oxygen in the vapor phase in the presence of a catalyst comprising silica and supported thereon oxides of molybdenum, bismuth and iron, the yield of acrylonitrile or methacrylonitrile based on ammonia is improved without sacrificing the yield based on propylene or isobutylene by the use of a novel catalyst having, incorporated therein, 0.002 to 0.2 atom, based on 12 atoms of molybdenum, of an oxide of at least one element selected from the group consisting of palladium, platinum, osminum and iridium.

Titanium dioxide/bismuth titanate ultrasonic enhanced photocatalyst and preparation method thereof

本发明属于光催化材料技术领域，具体涉及一种二氧化钛/钛酸铋超声强化型光催化剂及其制备方法。本发明采用溶胶凝胶法制备了二氧化钛与钛酸铋异质结构，获得了由钛酸铋纳米颗粒和在其表面负载TiO 2 纳米颗粒的钛酸铋/二氧化钛超声强化型光催化剂，该催化剂将钛酸铋良好的光催化活性、压电性能和禁带宽度小三大优势，与纳米二氧化钛良好的光催化性能相结合，使得该复合光催化剂的催化活性大大提高。另外，通过构筑钛酸铋和二氧化钛两相复合的异质结，通过界面效应增强光催化性能，再通过超声协同激发钛酸铋内建电场，加速光生载流子分离和传输，而且产生的光生载流子，也促进了二氧化钛和钛酸铋本身的光催化活性，光催化性能得到进一步提高。

COMPOSITIONS OF CATALYSTS WITHOUT NOBLE METALS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 104 108 A (51) МПК B01J 23/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017104108, 24.07.2015 (71) Заявитель(и): ТРАЙБАХЕР ИНДУСТРИ АГ (AT) Приоритет(ы): (30) Конвенционный приоритет: 29.07.2014 EP 14178892.7 25 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.02.2017 EP 2015/067010 (24.07.2015) (87) Публикация заявки PCT: A WO 2016/016127 (04.02.2016) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Композиция с формулой Се1-a-b-cNaMbDcOx I, в которой М обозначает один или несколько элементов из группы щелочных металлов кроме натрия, N обозначает Вi и/или Sb, D присутствует или отсутствует, и если присутствует выбирается из одного или нескольких элементов из - Mg, Ca, Sr, Ba; - Y, Lа, Рr, Nd, Sm, Gd, Еr; - Fе, Zr, Nb, Аl; а является числом в интервале 0<а≤0,9, b является числом в интервале 0 Подробнее

Preparation method and application of tetragonal phase bismuth oxide activated carbon photocatalyst

本发明涉及一种正方相氧化铋活性炭光催化剂的制备方法及应用，属于光催化剂技术领域。本发明将失活的活性炭置于微波功率为800~1000 W、温度为600~900℃条件下恒温反应10~30 min得到再生活性炭；将再生活性炭与赖氨酸溶液、硝酸铋溶液混合均匀并在搅拌条件下浸渍反应120~240 min，然后再置于微波功率为500~1000W、温度300~900℃条件下微波焙烧10~30min即得正方相Bi 2 O 3 ‑AC光催化剂。本发明将失活活性炭作为金属氧化物的载体，制备正方相氧化铋活性炭光催化剂提高吸附能力并且在可见/紫外光的照射下可降解染料废水中的染料。

The method that solvent-thermal method prepares stainless (steel) wire load bismuth oxide nanosheet photocatalyst

本发明公开了一种溶剂热法制备不锈钢网负载氧化铋纳米片光催化剂的方法，以硝酸铋、乙二醇和丙酮为原料，不锈钢网为载体，控制水热反应温度和时间进行溶剂热反应，反应结束后取出不锈钢网，清洗后经80～90℃烘干处理12～24h制得不锈钢网负载Bi 2 O 3 纳米片光催化材料。本发明工艺简单，有效优化不锈钢网负载Bi 2 O 3 纳米片光催化材料制备工艺，制备的产品性能优良，能作为光催化材料使用。

Photocatalyst nano composite material prepared based on single-phase bismuth titanate

本发明公开一种基于单相钛酸铋(Bi 20 TiO 32 )制备的光催化剂纳米复合材料，是在用超临界法制备Bi 20 TiO 32 过程中加入少量石墨烯一同反应，使反应形成的Bi 20 TiO 32 均匀的分散在石墨烯片上，这有利于反应物和产物的扩散，进而有利于光催化性能的提高，最后经焙烧晶化形成石墨烯‑Bi 20 TiO 32 纳米复合材料。本发明制备过程反应条件温和、实现成本较低，且制备得到的光催化剂纳米复合材料的光催化性能优于单相钛酸铋，具有广泛的运用前景。

Unsaturated mononitrile production process

FIELD: industrial organic synthesis. SUBSTANCE: invention relates to production of unsaturated mononitriles such as acrylonitrile and methacrylonitrile comprising following stages: reaction of olefin (propylene or isobutylene) with ammonia and oxygen in presence of catalyst; routing reactor-leaving unsaturated mononitrile-containing stream to cooling column wherein it comes into contact with first water stream and is cooled therefrom; routing mononitrile-containing cooled stream to absorption column wherein it comes into contact with at least second water stream to isolate and remove unsaturated mononitrile as bottom stream from absorption column; routing unsaturated mononitrile-containing bottom stream to regeneration column wherein regeneration and mononitrile purification take place; treating at least one used water stream prior to being recycled into used stream to lower pH, in particular to lower amount of trace oxidant impurities present in recycling aqueous acrylonitrile stream. EFFECT: reduced amount of oxidants in recycling aqueous solutions. 8 cl, 1 dwg, 3 ex

Patent RU2017104108A3

’ВИ“” 2017104108” АЗ Дата публикации: 22.11.2018 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017104108/04(007198) 24.07.2015 РСТ/ЕР2015/067010 24.07.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14178892.7 29.07.2014 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) КОМПОЗИЦИИ КАТАЛИЗАТОРОВ БЕЗ БЛАГОРОДНЫХ МЕТАЛЛОВ Заявитель: ТРАЙБАХЕР ИНДУСТРИ АГ, АТ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ВО1.] 23/18 (2006.01) ВО01. 37/03 (2006.01) ВО1.] 37/10 (2006.01) ВОТ. 35/00 (2006.01) ВО01./ 37/08 (2006.01) ВО1.] 23/543 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВО11 23/18, ВО13 35/00, ВО11 37/03, ВО14 37/08, ВО13 37/10, ВО11 23/843 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепее, Соозе, Рабеагсв, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ...

A kind of bismuth oxide photocatalyst containing α and beta crystal and preparation method and application

本发明公开了一种含有α和β晶型的Bi 2 O 3 光催化剂及其制备方法与应用，其是以铋盐、硝酸以及碳酸钠为原料，经沉淀和煅烧制得所述Bi 2 O 3 光催化剂。将本发明α,β‑Bi 2 O 3 光催化剂用于环境中抗生素的降解，表现出较高的降解效率，可以较好清除环境中的抗生素。此外，本发明制备成本低，生产工艺简单，可大规模生产；且所得催化剂以太阳光为驱动能、空气为氧化剂进行降解反应，有利于环境的可持续发展，具有重要的现实意义。

Method for producing unsaturated nitriles

The invention relates to a method for producing unsaturated nitriles from alkanes comprising the following steps: a) introducing the alkane and oxygen-containing gas into a dehydrogenation zone and autothermally dehydrogenating the alkane to form corresponding alkene whereby obtaining a product gas flow A that contains the alkene, unconverted alkane, water vapor and, optionally, one or more additional gas constituents, selected from the group consisting of hydrogen, carbon oxides, in quantities less than those of the alkane and alkene, boiling ( = low-boiling) hydrocarbons, nitrogen and inert gases; b) introducing product gas flow A of ammonia and oxygen-containing gas into an oxidizing zone and carrying out the catalytic ammoxidation of the alkene to from corresponding unsaturated nitrile whereby obtaining a product gas stream B that contains the unsaturated nitrile, byproducts of the ammoxidation, unconverted alkane and alkene, hydrogen and, optionally, one or more additional gas constituents, selected from the group consisting of hydrogen, oxygen, carbon oxides, ammonia, light-boiling hydrocarbons, nitrogen and inert gases; c) optionally separating ammonia out from product gas flow B whereby obtaining an ammonia-depleted product gas flow C; d) separating the unsaturated nitrile and byproducts of the ammoxidation out from product gas flow B or C by absorption in an aqueous absorption agent whereby obtaining a gas stream D that contains the unconverted alkane and alkene and, optionally, one or more gas constituents selected from the group consisting of hydrogen, oxygen, carbon oxides, ammonia, light-boiling hydrocarbons, nitrogen and inert gases, and an aqueous flow is obtained that contains the nitrile and the byproducts, and extracting the unsaturated nitrile from the aqueous flow; e) separating gas flow D into two partial flows D' and D , optionally separating unconverted alkane and alkene out from partial flow D' and returning partial flow D and, ...

Production of unsaturated nitriles from alkanes comprises catalytic dehydrogenation, at least partial separation of the other gaseous components from the alkane and alkene, and catalytic ammoxidation

Process for production of unsaturated nitriles from corresponding alkanes comprises: (1) catalytic dehydrogenation; (2) at least partial separation of other gaseous components from the alkane and alkene; and (3) catalytic ammoxidation of the alkene to form the corresponding unsaturated nitrile. Process for production of unsaturated nitriles from corresponding alkanes comprises: (A) feeding an alkane to a dehydrogenation zone with catalytic dehydrogenation of the alkane to the corresponding alkene to form a product gas stream comprising the alkene, unreacted alkane and optionally at least one further gaseous component comprising water vapor, hydrogen, carbon oxides, low boiling point hydrocarbons (lower than that of the alkane and alkene) and noble gas; (B) at least partial separation of the other gaseous components from gas stream (A) to yield a feed gas stream comprising alkane and alkene; (C) feeding the gas stream from (B), ammonia, an oxygen containing gas and optionally water vapor into an oxidation zone with catalytic ammoxidation of the alkene to form the corresponding unsaturated nitrile, byproducts, unreacted alkane and alkene and optionally at least one of water vapor, oxygen, carbon oxides, ammonia, nitrogen and noble gas; (D) optional separation of ammonia from gas stream (C) to yield an ammonia poor gas stream (D); (E) separation of the unsaturated nitrile and byproducts from (C) and/or (D) by absorption in an aqueous absorption agent to yield a gaseous stream containing unreacted alkane and alkene and optionally at least one of oxygen, carbon oxides, ammonia, nitrogen and noble gases and an aqueous stream comprising the nitrile and byproducts with recovery of the unsaturated nitrile from the aqueous stream; and (F) recycling of the gaseous stream from (E) to the dehydrogenation zone.

PROCESS FOR TRANSFORMING LIGNOCELLULOSIC BIOMASS OR CELLULOSE WITH STABLE NON-ZEOLITHIC LEWIS SOLID ACIDS BASED ON TIN OR ANTIMONY ALONE OR IN MIXTURE

L'invention concerne un procédé de transformation de biomasse lignocellulosique ou de cellulose mettant en œuvre des catalyseurs hétérogènes non zéolithiques stables à base d'étain et/ou d'antimoine, de préférence dispersé sur un support. L'utilisation de ces catalyseurs permet d'obtenir directement de l'acide lactique à haute sélectivité tout en limitant la production d'oligosaccharides et de polymères solubles. The invention relates to a process for converting lignocellulosic biomass or cellulose using stable non-zeolitic heterogeneous catalysts based on tin and / or antimony, preferably dispersed on a support. The use of these catalysts makes it possible to directly obtain lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.

Nitriles - by ammoxydation of chloromethylene cpds - using iron derivs as catalysts

Nitriles Y-CN (where Y = alkylphenyl or R2R3C:Cr1-, where R1, R2, and R3 = H or alkyl, at least one being methyl) are prepd. by vapour phase reaction of O2, NH3 and Y-CH2 Cl in the presence of Fe derivs. Starting matl. may be methallyl chloride, 4-Cl-2-butene, 2-or 3-Me-4-Cl-2-butene, 4-Me-5-Cl-3-pentene, 4-Me-5-Et-6-Cl-4-hexene, o-m- or p-ClCH2 toluene, m-or p-ClCH2 cumene, 3,5-di Me-ClCH2 - benzene or 2-Me-4-Bu-ClCH2-benzene.

Transformation process for acrolein-cyanohydrin

Improvements in the production of unsaturated aliphatic aldehydes

Oxygenated antimony-metal cpds prepn. - by oxidizing antimony (III) with hydrogen peroxide and reacting with metal cpd.

H2O2 is used in a stoichiometric quantity or more at 40-100 degrees C, the Sb (V) formed being reacted with >=1 metal in the form of a salt, oxide, or hydroxide, in an aq. medium, followed by calcination. Products are useful for prodn. of catalysts for olefin oxidation and resistors.

Improvements in the production of unsaturated aliphatic nitriles

Exit gas analysis for monitoring ammoxidn process - by temp conditioning and filtering sample before mass spectrography analysis

Analysis of gas streams leaving ammoxidn. process, in which a mixt. of an aliphatic 2-6 (3-4) esp. 3C alpha-monoolefin, NH3 and O3 is passed through a solid ammoxidn. catalyst at ca. 260-621 (426-510) degrees C, to produce the corresp. unsatd. aliphatic nitrile (CH2:CHCN), comprises cooling part of the gas, adjusting to 176-233 degrees C (in a closed gas cycle), removing solids with dia. >5 (>1-2) esp. >1 mu m and analysing the filtered and temp.-conditioned sample. This gives a stable gas stream, which does not form solids which would block the pipes, filters, valves and similar appts. Analysis can be carried out rapidly, allowing better process control.

Process for the production of conjugated diolefins

Process for the preparation of unsaturated nitriles and catalyst for its implementation

Process for the production of conjugated diolefins

Improvements to oxidation catalysts

Nitriles prepn

Nitriles are prepared by catalytic ammoxidation of an alkane by passing a feed gas contg. the alkane and ammonia in the vapour phase at an elevated temp. over a solid catalyst consisting of the oxides of vanadium and antimony, or a compd. contg. vanadium, antimony and oxygen. Used esp. for the prepn. of acrylonitrile or methacrylonitrile from propane or isobutane. The catalyst has a high reaction selectivity, and high yields of nitriles are obtained.

Improvements in the preparation of organic nitrogen compounds

Catalytic process for the preparation of nitriles and catalyst for its implementation

Patent FR2176771A1

Improvements in the manufacture of acrylonitrile

Improvements relating to oxidation catalysts

Oxidation catalyst and process for the oxidation of olefins using this catalyst

Patent FR2202080B1

Process for preparing unsaturated nitriles

Patent JPS5720943B2

Process for the production of unsaturated nitriles

Production of antimonate catalysts.

A slurry process for producing a fluid-bed catalyst comprising an antimonate-based oxide complex supported on a catalyst support in which (1) source compounds containing all of the elements of said oxide complex and said support material are combined to form a pre-catalyst slurry, (2) the liquid removed from said pre-catalyst slurry to form a pre-catalyst, and (3) said pre-catalyst is heated at elevated temperature to form said catalyst, in which the support material combined with the source compounds in step (1) is composed of (a) a fumed catalyst support material, such as fumed silica, and (b) a catalyst support material sol, such as a silica sol. The pro-catalyst slurry is formed without the addition of a slurry-derived solid containing fumed catalyst support material and one or more of the source compounds. The process is preferably a single slurry process. The catalyst produced has improved catalytic properties and attrition resistance.

Catalyst compositions without noble metals

FIELD: technological processes.SUBSTANCE: invention relates to a composition for systems for post-processing exhaust gases of diesel engines, gasoline combustion engines, engines on lean mixture and power plants, having the formula CeNMDO(I), in which M denotes potassium, N denotes Bi and / or Sb, D is present or absent, and if present, then selected from one or more elements of Mg, Ca, Sr, Ba; Y, La, Pr, Nd, Sm, Gd, Er; Fe, Zr, Nb, Al; a is a number in range 0<a≤0.9, b is a number in range 0<b≤0.3, c is a number in range 0≤c≤0.2; a plus b plus c equals <1, and x is a number in range 1.2≤x≤2. Invention also relates to use of disclosed composition for post-processing exhaust gas systems of diesel engines, gasoline combustion engines, engines on lean mixture and power plants.EFFECT: technical result consists in obtaining a novel composition having higher catalytic activity.13 cl, 2 dwg, 4 tbl, 18 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 690 852 C2 (51) МПК B01J 23/18 (2006.01) B01J 35/00 (2006.01) B01J 37/03 (2006.01) B01J 37/08 (2006.01) B01J 37/10 (2006.01) B01J 23/843 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B01J 23/18 (2019.02); B01J 35/00 (2019.02); B01J 37/03 (2019.02); B01J 37/10 (2019.02); B01J 23/843 (2019.02); B01J 37/08 (2019.02) (21)(22) Заявка: 2017104108, 24.07.2015 24.07.2015 Дата регистрации: 06.06.2019 (56) Список документов, цитированных в отчете о поиске: RU 2341327 С2, 20.12.2008. US 29.07.2014 EP 14178892.7 (43) Дата публикации заявки: 28.08.2018 Бюл. № 25 4460706 А1, 17.07.1984. EP 2210861 В1, 08.08.2012. WO 2006044822 А1, 27.04.2006. (45) Опубликовано: 06.06.2019 Бюл. № 16 (86) Заявка PCT: EP 2015/067010 (24.07.2015) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.02.2017 (87) Публикация заявки PCT: 2 6 9 0 8 5 2 WO 2016/016127 (04.02.2016) R U 2 6 9 0 8 5 2 (73) Патентообладатель(и): ТРАЙБАХЕР ИНДУСТРИ АГ (AT) Приоритет(ы): (30) ...

Production of unsaturated aliphatic nitriles

Method for removing micropollutant ibuprofen in water

本发明涉及种去除水中微污染物布洛芬的方法，可有效解决难生物处理布洛芬废水处理，保护生态环境的问题，解决的技术方案是，采用钛、铋元素掺杂石墨烯制备出Ti/Bi?石墨烯复合纳米光催化材料，加入到含有布洛芬的废水中，由酸性介质调节混合液的pH值，再在混合液中添加溶解性有机物，在可见光源的照射下，利用Ti/Bi?石墨烯复合纳米材料，在DOM的助催化作用下，直接处理含有布洛芬的废水，采用液相色谱测定布洛芬浓度的变化，并计算其去除率，本发明方法简单，易操作，处理费用低，去除率高，节能环保，经济和社会效益巨大。

Advanced process for preparing acrylic nitrile

Process for making unsaturated mononitrile.

"PROCESSO PARA FABRICAR UMA MONONITRILA INSATURADA", selecionada do grupo consistindo de acrilonitrila e metacrilonitrila compreendendo reagir uma olefina selecionada do grupo consistindo de propileno e isobutileno, amónia e oxigênio em uma zona de reator na presença de um catalisador para produzir um efluente de reator contendo a mononitrila insaturada correspondente, transferir o efluente de reator contendo a mononitrila insaturada para uma coluna de resfriamento em que o efluente de reator contendo a mononitrila insaturada é contatado com pelo menos um primeiro fluxo aquoso para resfriar o efluente de reator, transferir o efluente de reator resfriado contendo a mononitrila insaturada para uma coluna de absorção em que o efluente de reator contendo mononitrila insaturada é contactado com pelo menos um segundo fluxo aquoso para separar e remover a mononitrila insaturada como um fluxo de fundo da coluna de absorção, transferir o fluxo de fundo contendo a mononitrila insaturada para uma seção de recuperação e purificação onde a mononitrila insaturada é recuperada e purificada e reciclar pelo menos um fluxo de processo aquoso para melhorar a eficiência do processo em que a melhoria compreende tratar pelo menos um fluxo aquoso antes de reciclar no fluxo de processo para reduzir pH reduzindo dessa maneira a quantidade de impurezas mínimas presente no fluxo de reciclagem aquoso.

Passivating metals on cracking catalysts

Abstract of the Disclosure Contaminating metals on a clay based cracking catalyst are passi-vated by contacting the catalyst with indium antimonide under elevated temperature conditions.

METHOD OF OBTAINING A MIXTURE OF UNSATURATED ALIPHATIC NITRILES

Oxidant reduction by manipulation and/or treatment of aqueous acrylonitrile process streams

一种用于制造选自丙烯腈和甲基丙烯腈的不饱和单腈化合物的方法，包括将一种选自丙烯或异丁烯的烯烃、氨和氧在存在催化剂的反应器区段中反应生成一种含相应不饱和单腈化物的反应器流出物，将其输送到急冷塔中，它至少与第一种含水物流相接触以冷却该反应器流出物，将冷却后的反应器流出物输送到吸收塔中，该反应器流出物至少与第二种含水物流相接触以分离和从吸收塔中以釜底物流取出不饱和单腈化合物，将该釜底物流输送到回收和纯化区段回收和纯化不饱和单腈化合物，和至少循环一种含水工艺物流以改进方法的效率，其改进包括在循环工艺物流之前至少处理一种含水物流使pH降低，从而减少在含水循环物流中存在的微量杂质的量。

A kind of Novel photocatalyst method based on hetero-junctions micro-nano structure

本发明公开了一种基于氧化物异质结结构的新型光触媒方法，包括以下步骤：步骤1：称取一定比例的氧化物异质结胶体，甲基橙，去离子水。步骤2：先通过超声波震荡，是原料均匀的分散在溶液中，在暗室中搅拌一段时间(1h以上)，达到吸附与被吸附平衡。步骤3：在紫外线灯的照射下，每隔15min取一次样，通过紫外‑可见光分光光度计检测其吸收图谱。根据该发明所用的新型光触媒材料，为均匀稳定的白色胶体溶液，制备简单，成本低廉，有效改善了半导体光催化剂在液态中的不稳定性，同时对有机污染物的降解效率明显提高。在时间和成本上较一般的光触媒都明显提升且对环境不会造成二次污染。

Oxidation reduction by treatment and / or manipulation of aqueous acrylonitrile process streams

아크릴로니트릴 및 메타크릴로니트릴로 이루어진 군으로부터 선택된 불포화 모노니트릴의 제조방법으로서, 하기 공정을 포함하는 방법: 프로필렌 및 이소부틸렌으로 이루어진 군으로부터 선택된 올레핀, 암모니아 및 산소를 반응 구역 내에서, 촉매의 존재 하에 반응시켜서, 상응하는 불포화 모노니트릴을 함유하는 반응기 유출물을 제조하고; 불포화 모노니트릴을 함유하는 반응기 유출물을 급냉탑으로 이동시키고, 여기에서, 불포화 모노니트릴을 함유하는 반응기 유출물을 하나 이상의 제 1 수성 스트림과 접촉시켜서 반응기 유출물을 냉각시키며; 불포화 모노니트릴을 함유하는 냉각된 반응기 유출물을 흡수탑으로 이동시키고, 여기에서, 불포화 모노니트릴을 함유하는 반응기 유출물을 하나 이상의 제 2 수성 스트림과 접촉시켜서 불포화 모노니트릴을 저면 스트림으로서 흡수탑으로부터 분리 및 제거하며; 불포화 모노니트릴을 함유하는 저면 스트림을 회수 및 정제 구획으로 이동시키고, 여기에서, 불포화 모노니트릴을 회수 및 정제하며; 하나 이상의 수성 공정 스트림을 재순환시켜서, 공정의 효율을 개량시키며, 여기에서, 개량은 공정 스트림으로의 재순환 이전에 하나 이상의 수성 스트림을 처리하여, pH 를 감소시킴으로써 수성 재순환 스트림 내에 존재하는 미량 불순물의 양을 감소시키는 것을 포함한다.

Patent JPS575221B2

Passivating metals on cracking catalysts by indium antimonide

Contaminating metals on a clay based cracking catalyst are passivated by contacting the catalyst with indium antimonide under elevated temperature conditions.

Process for amoxidation of monoolefins

Production of acrylonitrile or methacrylonitrile

1,221,602. Acrylonitrile and methacrylonitrile. BP CHEMICALS (UK) Ltd. 17 June, 1969 [28 June, 1968], No. 31013/68. Heading C2C. [Also in Division B1] Acrylonitrile or methacrylonitrile is obtained by reacting at elevated temperature in the vapour phase acrolein or methacrolein or a precursor thereof, e.g. propylene or isobutylene with ammonia and molecular oxygen over a catalyst comprising an oxide composition which is a mixture of antimony and indium, either alone or together with one or more additional metals selected from tin, vanadium, chromium, manganese, iron, nickel, cobalt, copper, zinc, titanium, cerium and thorium. The catalyst may be heated to 550‹ to 1100‹ C. in a molecularoxygen-containing gas, it may have a surface area of 2 to 50 sq. m./gm. and it may be deposited on a support, such as silica.

Improvements in or relating to catalyst compositions

Oxidation catalysts consisting of or containing SnO2 and Sb2O4 in combination or admixtures are activated by contacting the catalysts subsequent to calcination at 500-1100 DEG C. with boiling water or aqueous solutions of an acid or a base e.g. CH3COOH, HCl or NH4OH.

Patent JPH0316177B2

Catalyst for catalytic combustion treatment of PTA tail gas

本发明涉及一种用于催化燃烧处理PTA尾气的催化剂及其用途，主要解决现有催化剂成本较高，制备工艺较为复杂的问题。本发明通过一种用于PTA装置氧化尾气处理的催化剂及其用途，该催化剂以成型的氧化铝为载体，以钴氧化物作为活性组分，以IIIA族元素和ⅤA族元素氧化物为助剂，采用分步浸渍的方法进行制备，然后将催化剂用于PTA装置氧化尾气的处理。本发明催化剂的成本较低，制备工艺较为简单，能够在较宽范围的尾气浓度条件下催化氧化PTA尾气，催化活性好，不产生二次污染，可应用于PTA氧化尾气等工业废气的催化氧化处理。

Process for the production of an oxidation catalyst

DIMERIZATION PROCESS

L'invention concerne l'industrie organique. Elle a pour objet un procédé de dimérisation oxydante d'un composé de formule générale : R**1R**2C = CR**3-CH.R**4R** 5 où R**1, R**2, R**3, R**4 et R**5 sont choisis indépendamment parmi les atomes d'hydrogène et d'halogène et les radicaux alkyle, aryle, cyano et cyclohexyle, tous éventuellement substitués, suivant lequel on chauffe le composé de formule R**1R**2C = CR**3-CH-R** 4R**5 en présence d'oxygène et d'un catalyseur comprenant de l'oxyde de bismuth sous forme partiellement réduite Le procédé est appliqué de préférence à la dimérisation non cyclisante de l'isobutène. The invention relates to the organic industry. It relates to a process for the oxidative dimerization of a compound of general formula: R ** 1R ** 2C = CR ** 3-CH.R ** 4R ** 5 where R ** 1, R ** 2, R ** 3, R ** 4 and R ** 5 are independently selected from hydrogen and halogen atoms and alkyl, aryl, cyano and cyclohexyl radicals, all optionally substituted, according to which the compound of formula is heated R ** 1R ** 2C = CR ** 3-CH-R ** 4R ** 5 in the presence of oxygen and a catalyst comprising bismuth oxide in partially reduced form The process is preferably applied to the non-cyclizing dimerization of isobutene.

Method for producing nitriles using a catalyst made from antimony and iron

Process for activation of catalysts

Disclosed is a process for making an activated antimony and vanadium-containing catalyst in oxide form having an atomic ratio of Sb:V in the range from 0.8-4, which comprises calcining such an oxidic vanadium and antimony-containing composition at a temperature of over 750 DEG C, and thereafter contacting said calcined catalyst with a hydroxy compound in liquid form selected from (1) cyclohexanol, (2) cyclopentanol, (3) a monohydroxy, acyclic hydrocarbon having 1-8 C atoms, and (4) a dihydroxy, acyclic hydrocarbon having 2-4 carbon atoms, and separating as a liquid said compound from said catalyst insofar as it is present beyond the amount wetting said catalyst, and thereafter drying said catalyst.

Patent FR1575013A

METHOD FOR PRODUCING ACRYLNITRILE.

Manufacture of acrylonitrile

METHOD OF SYNTHESIS OF DIOLFINS

Noble metal-free nickel catalyst formulations for hydrogen generation

The invention relates to methods of using noble metal-free nickel catalysts to generate a hydrogen-rich gas from gas mixtures containing carbon monoxide and water, such as water-containing syngas mixtures, where the nickel may exist in either a supported or a bulk state. The noble metal-free water gas shift catalyst of the invention comprises Ni in either a supported or a bulk state and at least one of Ge, Cd, In, Sn, Sb, Te, Pb, their oxides and mixtures thereof. The invention is also directed toward noble metal-free nickel catalysts that exhibit both high activity and selectivity to hydrogen generation and carbon monoxide oxidation.

Non-noble metal CO catalytic purification material for gas water heater and preparation method thereof

本发明公开了一种燃气热水器用非贵金属CO催化净化材料，催化剂载体为CuO‑TiO 2 ‑SiO 2 ，活性组包括CeO 2 、Sb 2 O 3 或Nb 2 O 5 中的一种或几种。本发明还公开了一种燃气热水器用非贵金属CO催化净化材料的制备方法。本发明中，非贵金属CO催化净化材料具有成本低、耐高温、水热稳定性好、抗硫及氟氯中毒性能好、使用寿命长、可将CO含量降低到20ppm以下等优点。

Processes for stabilizing antimony catalysts

The present disclosure relates to a process for stabilizing an antimony ammoxidation catalyst in an ammoxidation process. The process may comprise providing an antimony ammoxidation catalyst to a reactor; reacting propylene with ammonia and oxygen in the fluidized bed reactor in the presence of the antimony ammoxidation catalyst to form a crude acrylonitrile product; and adding an effective amount of an antimony-containing compound to the antimony ammoxidation catalyst to maintain catalyst conversion and selectivity; wherein the antimony-containing compound has a melting point less than 375° C. The present disclosure also relates to catalyst compositions and additional processes using the antimony ammoxidation catalyst stabilized by an antimony-containing compound.