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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 19890. Отображено 100.
12-01-2012 дата публикации

Olefin production process

Номер: US20120010453A1
Принадлежит: Mitsui Chemicals Inc

A novel olefin production process is provided which can be established as an industrial and practical process capable of producing olefins by directly reacting a ketone and hydrogen in a single reaction step. In particular, a novel olefin production process is provided in which propylene is obtained with high selectivity by directly reacting acetone and hydrogen. The olefin production process according to the present invention includes reacting a ketone and hydrogen in the presence of at least one dehydration catalyst and a silver-containing catalyst, and the at least one dehydration catalyst is selected from metal oxide catalysts containing a Group 6 element, zeolites, aluminas and heteropoly acid salts in which part or all the protons in heteropoly acids are exchanged with metal cations.

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19-01-2012 дата публикации

Catalyst for production of hydrogen and process for producing hydrogen using the catalyst, and catalyst for combustion of ammonia, process for producing the catalyst and process for combusting ammonia using the catalyst

Номер: US20120015802A1
Принадлежит: NIPPON SHOKUBAI CO LTD

Disclosed is a catalyst which can be used in the process for producing hydrogen by decomposing ammonia, can generate heat efficiently in the interior of a reactor without requiring excessive heating the reactor externally, and can decompose ammonia efficiently and steadily by utilizing the heat to produce hydrogen. Also disclosed is a technique for producing hydrogen by decomposing ammonia efficiently utilizing the catalyst. Specifically disclosed is a catalyst for use in the production of hydrogen, which is characterized by comprising an ammonia-combusting catalytic component and an ammonia-decomposing catalytic component. Also specifically disclosed is a catalyst for use in the production of hydrogen, which is characterized by comprising at least one metal element selected from the group consisting of cobalt, iron, nickel and molybdenum.

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26-01-2012 дата публикации

Fischer-tropsch synthesis catalyst, preparation and application thereof

Номер: US20120022174A1
Принадлежит: Synfuels China Technology Co Ltd

A micro-spherical Fe-based catalyst for a slurry bed Fischer-Tropsch synthesis (FTS) comprises Fe as its active component, a transitional metal promoter M, a structure promoter S and a K promoter. The transitional metal promoter M is one or more selected from the group consisting of Mn, Cr and Zn, and the structure promoter S is SiO 2 and/or Al 2 O 3 . The weight ratio of the catalyst components is Fe: transitional metal promoter: structure promoter: K=100:1-50:1-50:0.5-10. Preparation method of the catalyst comprises: adding the structure promoter S into a mixed solution of Fe/M nitrates, then co-precipitating with ammonia water to produce a slurry, filtering and washing the slurry to produce a filter cake, adding the required amount of the K promoter and water to the filter cake, pulping and spray drying, and roasting to produce the micro-spherical Fe-based catalyst for the slurry bed Fischer-Tropsch synthesis. The catalyst has good abrasion resistance and narrow particle size distribution, furthermore, it has high conversion capability of synthesis gas, good product selectivity and high space time yield, and the catalyst also can be used for the slurry bed Fischer-Tropsch synthesis in a wide temperature range.

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16-02-2012 дата публикации

Catalyst for Removing Nitrogen Oxides

Номер: US20120039758A1
Принадлежит: Individual

The present invention is to provide a catalyst for removing nitrogen oxides which is capable of keeping sufficient denitrification performance, i.e., a high removal rate of nitrogen oxides in exhaust gas having a high NO 2 content especially under conditions where the ratio of NO 2 /NO in exhaust gas is 1 or higher, a catalyst molded product therefor, and an exhaust gas treating method. The catalyst is designed for removing nitrogen oxides, which is used to denitrify exhaust gas containing nitrogen oxides having a high NO 2 content, which comprises: at least one kind of oxide selected from the group consisting of copper oxides, chromium oxides, and iron oxides as a component for reducing NO 2 to NO; and which further comprises: at least one kind of titanium oxide; at least one kind of tungsten oxide; and at least one kind of vanadium oxide as components for reducing NO to N 2 .

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15-03-2012 дата публикации

Process For Producing Catalyst For Methacrylic Acid Production And Process For Producing Methacrylic Acid

Номер: US20120065427A1
Принадлежит: Nippon Kayaku Co Ltd

An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.

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22-03-2012 дата публикации

Catalyst and method for partially oxidizing hydrocarbons

Номер: US20120071671A1
Принадлежит: BASF SE

The invention relates to a catalyst for partially oxidizing hydrocarbons in the gas phase, containing a multi-metal oxide of the general formula (I), AgaMObVcMdOe.f H2O (I), wherein M stands for at least one element selected from among Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, B, Al, Ga, In, Si, Sn, Pb, P, Sb, Bi, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Au, Zn, Cd, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and U, a has a value of 0.5 to 1.5, b has a value of 0.5 to 1.5, c has a value of 0.5 to 1.5, a+b+c has the value 3, d has a value of less than 1, e means a number that is determined by the valence and frequency of the elements other than oxygen in the formula (I), f has a value of 0 to 20, which multi-metal oxide exists in a crystal structure, the X-ray powder diffractogram of which is characterized by diffraction reflections at a minimum of 5 lattice distances selected from among d=4.53, 3.38, 3.32, 3.23, 2.88, 2.57, 2.39, 2.26, 1.83, 1.77 AA (+−0.04 AA).

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19-04-2012 дата публикации

Metal oxide sterilizing catalyst, and sterilizing device and system including the same

Номер: US20120093908A1
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Disclosed is a sterilizing catalyst, a sterilizing device and a sterilizing system, the sterilizing catalyst includes a metal lattice including a metal oxide, and an oxygen vacancy-inducing metal that is integrated or encompassed within the metal lattice. The metal oxide is an oxide of a divalent or multivalent metal. The oxygen vacancy-inducing metal has an oxidation number lower than that of the divalent or multivalent metal.

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03-05-2012 дата публикации

Processes and systems for producing syngas from methane

Номер: US20120104322A1
Принадлежит: UOP LLC

Embodiments of a process for producing syngas comprising hydrogen and carbon monoxide from a gas stream comprising methane are provided. The process comprises the step of contacting the gas stream with a two-component catalyst system comprising an apatite component and a perovskite component at reaction conditions effective to convert the methane to the syngas.

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17-05-2012 дата публикации

Hydroconversion multi-metallic catalyst and method for making thereof

Номер: US20120122655A1
Принадлежит: Chevron USA Inc

In a process for forming a bulk hydroprocessing catalyst by sulfiding a catalyst precursor made in a co-precipitation reaction, up to 60% of the metal precursor feeds do not react to form catalyst precursor and end up in the supernatant. In the present disclosure, the metals can be recovered via any of chemical precipitation, ion exchange, electro-coagulation, and combinations thereof to generate an effluent stream containing less than 50 mole % of metal ions in at least one of the metal residuals, and for at least one of the metal residuals is recovered as a metal precursor feed, which can be recycled for use in the co-precipitation reaction. An effluent stream from the process to waste treatment contains less than 50 ppm metal ions.

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17-05-2012 дата публикации

Exhaust gas-purifying catalyst

Номер: US20120122672A1
Принадлежит: Cataler Corp

An exhaust gas-purifying catalyst includes first particles of oxygen storage material, second particles of one or more rare-earth elements other than cerium and/or compounds thereof interposed between the first particles, and third particles of one or more precious metal elements interposed between the first particles, wherein a spectrum of a characteristic X-ray intensity for one of the rare-earth element(s) and a spectrum of a characteristic X-ray intensity for one of the precious metal element(s) that are obtained by performing a line analysis using energy-dispersive X-ray spectrometry along a length of 500 nm have a correlation coefficient of 0.68 or more.

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31-05-2012 дата публикации

Process

Номер: US20120136165A1
Принадлежит: SOUTH BANK UNIVERSITY ENTERPRISES LTD

The present invention provides a continuous process for the epoxidation of an olefinic compound with an oxidant, which process comprises reaction of an olefinic compound with an oxidant in the presence of a catalyst in an apparatus that comprises a reactive distillation column, which column comprises (i) a reactive section, which comprises the catalyst (ii) a rectifying section situated above the reactive section and adapted to allow separation of reagents and/or by-products from products (ix) a stripping section situated below the reactive section and adapted to allow separation of product from reagents and/or by-products (x) a vessel situated below the stripping section and adapted to provide a source of heat for the column and in which initial vaporisation of one or more of the reagents can occur, wherein the temperature in the reactive section (i) is a temperature at which the reaction between the olefinic compound and the oxidant takes place and the temperature in the stripping section (iii) is higher than the temperature in the rectifying section (ii).

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07-06-2012 дата публикации

Process for producing hydrogenolysis products of polyhydric alcohols

Номер: US20120142976A1
Принадлежит: Kao Corp

The present invention relates to a process for producing hydrogenolysis products of polyhydric alcohols with a good selectivity and a high yield, as well as hydrogenolysis catalysts used in the production process. The present invention provides (1) a process for producing a hydrogenolysis product of a polyhydric alcohol which includes the step of reacting the polyhydric alcohol with hydrogen in the presence of a catalyst containing a copper component, wherein the catalyst is a catalyst (A) containing the copper component, an iron component and an aluminum component, or a catalyst (B) containing the copper component and a silicon component; and (2) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component, an iron component and an aluminum component, and (3) a hydrogenolysis catalyst for polyhydric alcohols which includes a copper component and a silicon component.

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03-01-2013 дата публикации

Spinel structured catalyst for aldehyde production

Номер: US20130006019A1
Принадлежит: Individual

The present invention refers to a catalyst for aldehyde production, in particular formaldehyde or acetaldehyde production, through selective oxidation of alkanol, especially methanol or ethanol, with oxygen, said catalyst having a spinel structure. The catalyst typically comprises a Fe a q +V b+ Mo c+ y +Δ z O 4 spinel structure wherein Δ is an optional cation vacancy and wherein wherein z=3−q−x−y and q×a+x×b+y×c=8 in concentrations corresponding to 0.6<q<3, 0<x<1.5, 0<y<1 and 0<z<1.3 and 2<a<3, 3<b<5 and 3<c<6. The present invention further refers to a process for producing said catalyst and to the use of said catalyst for selective oxidation of alkanol, preferably methanol or ethanol, with oxygen to aldehyde, preferably formaldehyde or acetaldehyde.

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21-03-2013 дата публикации

Catalyst containing oxygen transport membrane

Номер: US20130072375A1
Принадлежит: Praxair Technology Inc

A composite oxygen transport membrane having a dense layer, a porous support layer and an intermediate porous layer located between the dense layer and the porous support layer. Both the dense layer and the intermediate porous layer are formed from an ionic conductive material to conduct oxygen ions and an electrically conductive material to conduct electrons. The porous support layer has a high permeability, high porosity, and a microstructure exhibiting substantially uniform pore size distribution as a result of using PMMA pore forming materials or a bi-modal particle size distribution of the porous support layer materials. Catalyst particles selected to promote oxidation of a combustible substance are located in the intermediate porous layer and in the porous support adjacent to the intermediate porous layer. The catalyst particles can be formed by wicking a solution of catalyst precursors through the porous support toward the intermediate porous layer.

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04-04-2013 дата публикации

Novel formulation of hexa-aluminates for reforming fuels

Номер: US20130085062A1
Автор: Magali S. Ferrandon
Принадлежит: UChicago Argonne LLC

The invention is directed to a catalyst and a method for making a reforming catalyst for the production of hydrogen from organic compounds that overcomes the problems of catalyst poisoning and deactivation by coking and high temperature sintering, yet provides excellent durability and a long working life in process use. An embodiment is the formation of a unique four-metal ion hexa-aluminate of the formula M1 a M2 b M3 c M4 d Al 11 O 19-α . M1 and M2 are selected from the group consisting of beryllium, magnesium, calcium, strontium, barium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, and gadolinium. M3 and M4 are selected from the group consisting of chromium, manganese, iron, cobalt, nickel, copper, molybdenum, ruthenium, rhodium, palladium, tungsten, rhenium, osmium, iridium, platinum, wherein 0.010≦a+b+c+d≦2.0. Also, 1≦α≦1. Further, M1≠M2 and M3≠M4.

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18-04-2013 дата публикации

Method for producing catalyst composition, catalyst composition, diesel particulate filter using the same, and exhaust gas purification system

Номер: US20130095997A1
Принадлежит: Dowa Electronics Materials Co Ltd

Provided is a catalyst having the ability to combust PM at relatively low temperatures and having high HC and CO removal (conversion) efficiency even at the above operating temperature. In the catalyst composition, at least one kind of platinum group element selected from Pt, Rh, and Pd is dispersed in and supported by a platinum group-supporting carrier containing at least one kind of element selected from Zr, Al, Y, Si, Bi, Pr, and Tb, and the platinum group-supporting carrier is supported on the surface of a Ce oxide containing Ce as an essential component. The catalyst composition has both PM combustion activity and gas purification activity.

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16-05-2013 дата публикации

Silver vanadium phosphates

Номер: US20130123517A1
Принадлежит: BASF SE

The invention relates to novel silver vanadium phosphates, catalysts based on these silver vanadium phosphates and the use of these catalysts for carrying out organic reactions in the gas phase.

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04-07-2013 дата публикации

Catalyst for producing unsaturated aldehyde and/or unsaturated carboxylic acid, and process for producing unsaturated aldehyde and/or unsaturated carboxylic acid using the catalyst

Номер: US20130172615A1
Принадлежит: NIPPON SHOKUBAI CO LTD

Provided is a catalyst for production of unsaturated aldehyde and/or unsaturated carboxylic acid, which shows excellent mechanical strength and low attrition loss and is capable of producing the object product(s) at a high yield. The catalyst comprises a catalytically active component containing molybdenum, bismuth and iron as the essential ingredients, and inorganic fibers, and is characterized in that the inorganic fibers contain at least an inorganic fiber having an average diameter of at least 8 μm and another inorganic fiber having an average diameter not more than 6 μm.

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11-07-2013 дата публикации

Hydrogenation Catalysts with Cobalt-Modified Supports

Номер: US20130178661A1
Принадлежит: Celanese International Corp

The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support that comprises cobalt.

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11-07-2013 дата публикации

Processes For Making Catalysts With Acidic Precursors

Номер: US20130178665A1
Автор: Heiko Weiner, Zhenhua Zhou
Принадлежит: Celanese International Corp

The present invention relates to catalysts, to processes for making catalysts with acidic precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support.

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08-08-2013 дата публикации

Ce-BASED COMPOSITE OXIDE CATALYST, PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20130202513A1

Disclosed is a Ce-based composite oxide catalyst for selective catalytic reducing nitrogen oxides with ammonia, which comprises Ce oxide and at least one oxide of transition metal except Ce. The Ce-based composite oxide catalyst is prepared by a simple method which uses non-toxic and harmless raw materials, and it has the following advantages: high catalytic activity, and excellent selectivity for generating nitrogen etc. The catalyst can be applied in catalytic cleaning plant for nitrogen oxides from mobile and stationary sources.

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15-08-2013 дата публикации

Catalyst And Method For The Direct Synthesis Of Dimethyl Ether From Synthesis Gas

Номер: US20130211148A1
Принадлежит: BASF Corp

Catalysts and methods for their manufacture and use for the synthesis of dimethyl ether from syngas are disclosed. The catalysts comprise ZnO, CuO, ZrO 2 , alumina and one or more of boron oxide, tantalum oxide, phosphorus oxide and niobium oxide. The catalysts may also comprise ceria. The catalysts described herein are able to synthesize dimethyl ether directly from synthesis gas, including synthesis gas that is rich in carbon monoxide.

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19-09-2013 дата публикации

Catalyst for hydrocarbon steam cracking, method of preparing the same and method of preparing olefin by using the same

Номер: US20130244868A1
Принадлежит: LG Chem Ltd

The present invention relates to a catalyst for hydrocarbon steam cracking, a method of preparing the same, and a method of preparing olefin by the hydrocarbon steam cracking by using the catalyst, and more specifically, to a catalyst for hydrocarbon steam cracking for preparing light olefin including an oxide catalyst (0.5≦j≦120, 1≦k≦50, A is transition metal, and x is a number satisfying conditions according to valence of Cr, Zr, and A and values of j and k) represented by CrZr j A k O x , wherein the composite catalyst is a type that has an outer radius r 2 of 0.5 R to 0.96 R (where R is a radius of a cracking reaction tube), a thickness (t; r 2 −r 1 ) of 2 to 6 mm, and a length h of 0.5 r 2 to 10 r 2 , a method of preparing the same, and a method of preparing light olefin by using the same.

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03-10-2013 дата публикации

Dehydrogenation of alkanols to increase yield of aromatics

Номер: US20130261361A1
Принадлежит: Virent Inc

The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting alkanols to hydrocarbons. The invention includes methods of using catalysts to increase the yield of benzene, toluene, and mixed xylenes in the hydrocarbon product.

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17-10-2013 дата публикации

Catalysts For The Conversion Of Hydroxypropionic Acid Or Its Derivatives To Acrylic Acid Or Its Derivatives

Номер: US20130274094A1
Принадлежит: Procter and Gamble Co

Catalysts for dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity, short residence time, and without significant conversion to undesired side products, such as, for example, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed condensed phosphates. Methods of preparing the catalysts are also provided.

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17-10-2013 дата публикации

Catalyst support materials with oxygen storage capacity (osc) and method of making thereof

Номер: US20130274096A1
Принадлежит: Pacific Industrial Development Corp

A new type of catalyst support with oxygen storage capacity (OSC) and methods of making the same are disclosed. The composition ratio is x(Ce 1-w Zr w 0 2 ):yM:zL:(1-x-y-z)AI 2 0 3 , where Ce 1-w Zr w 0 2 is the oxygen storage composition with stabilizer Zr0 2 , molar ratio (w) in the range of 0 to about 0.8, and a weight ratio (x) of about 0.05 to about 0.8; M is an interactive promoter for oxygen storage capacity with a weight ratio (y) of 0 to about 0.10; and L is a stabilizer for the support Al 2 0 3 with weight ratio (z) of from 0 to about 0.10. In some cases, M or L can act as both OSC promoter and thermal stabilizer. The weight percentage range of ceria-zirconia and other metal and rare earth oxides (x+y+z) is from about 5 to about 80% relative to total oxides. Combining platinum group metals (PGM) and adhesive with the catalyst supports, a new wash coat made therefrom is provided that comprises a mixture of catalyst support materials according to the relationship (a)RE-Ce—Zr0 2 +(3)CZMLA+(1-a-β)RE-AI 2 0 3 , where RE-Ce—Zr0 2 is a commercial OSC material of rare earth elements stabilized ceria zirconia having a weight ratio (a) ranging from 0 to about 0.7; CZMLA is the catalyst support material of the present disclosure having a weight ratio (β) ranging from about 0.2 to about 1 such that (α+β)<1; and RE-AI 2 0 3 is rare earth element stabilized alumina having a weight ratio equal to (1-α-β). The new wash coat made therefrom exhibits a lower activation temperature compared with traditional formulation of wash coat by at least 50° C. The new wash coat made therefrom also requires less RE-Ce—Zr0 2 oxide and/or less PGM in the formulation of emission control catalyst for gasoline and diesel engines.

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17-10-2013 дата публикации

Catalytic Conversion Of Lactic Acid To Acrylic Acid

Номер: US20130274514A1
Принадлежит: Procter and Gamble Co

Disclosed herein is the catalytic dehydration of lactic acid to acrylic acid, which is characterized by a high conversion of lactic acid, a high selectivity for acrylic acid, a high yield of acrylic acid, and correspondingly low selectivity and molar yields for undesired by-products. This is achieved with a particular class of catalysts defined by a mixture of metal-containing phosphate salts that together provide the catalyst with a very high basicity density and low acidity density. Further, the catalyst is believed to be stable and active for lengthy periods heretofore unseen in the art for such dehydration processes.

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07-11-2013 дата публикации

Method for producing xylylenediamine

Номер: US20130296609A1
Принадлежит: Mitsubishi Gas Chemical Co Inc

Provided is a method for stably and economically producing xylylenediamine with a high yield and long catalyst service life by hydrogenating dicyanobenzene that is obtained by ammoxidating xylene. By bringing an aqueous basic solution into contact with a dicyanobenzene-absorbed liquid, which is obtained by bringing an ammoxidation reaction gas into contact with an organic solvent, under specified temperature conditions, and subjecting a base and a carboxylic acid in the dicyanobenzene-absorbed liquid to a neutralization reaction so as to form an aqueous phase that contains a water-soluble salt, and then subjecting an organic phase and the aqueous phase to liquid-liquid separation so as to remove the aqueous phase, it is possible to remove the carboxylic acid contained in the dicyanobenzene-absorbed liquid with high selectivity while inhibiting loss of the dicyanobenzene. By subjecting the raw material dicyanobenzene, which is obtained by separating low boiling point compounds from the post liquid-liquid separation organic phase by distillation under reduced pressure, to hydrogenation, xylylenediamine is produced with a high yield and the service life of the hydrogenation catalyst is extended.

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21-11-2013 дата публикации

Processes for preparing amines and catalysts for use therein

Номер: US20130310560A1
Принадлежит: BASF SE

Processes for preparing an amine are described which comprise reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group of ammonia, primary and secondary amines, in the presence of a zirconium dioxide-, copper- and nickel-containing catalyst. The catalytically active composition of the catalyst, before its reduction with hydrogen, comprises oxygen compounds of zirconium, of copper, of nickel, in the range from 1.0 to 5.0% by weight of oxygen compounds of cobalt, calculated as CoO, and in the range from 0.2 to 5.0% by weight of oxygen compounds of sulfur, of phosphorus, of gallium, of lead and/or of antimony, calculated in each case as H2SO4, H3PO4, Ga203, PbO and Sb203 respectively.

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28-11-2013 дата публикации

Process for non-oxidative dehydrogenation of alkane

Номер: US20130317273A1
Принадлежит: Saudi Basic Industries Corp

The invention relates to a process for producing an alkene by non-oxidative dehydrogenation of an alkane, comprising contacting a feed stream comprising the alkane with a catalyst composition comprising an unsupported catalyst comprising ZrV 2 O 7 at a temperature of 400 to 600° C.

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06-02-2014 дата публикации

Catalyst for purifying exhaust gas

Номер: US20140037524A1
Принадлежит: Umicore Shokubai Japan Co Ltd

Provided is a catalyst for purifying an exhaust gas, the catalyst excelling in catalytic performance and oxygen storage capacity. The catalyst for purifying an exhaust gas is a catalyst for purifying an exhaust gas which includes a ceria-zirconia composite oxide having a pyrochlore structure and a ceria-zirconia composite oxide having a cubic crystal structure, wherein at least a part of the ceria-zirconia composite oxide is composited with the ceria-zirconia composite oxide.

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13-02-2014 дата публикации

Nickel catalysts for reforming hydrocarbons

Номер: US20140041300A1

A catalyst for reforming hydrocarbons may include a catalytically active amount of nickel or nickel oxide dispersed on a metal oxide support. The metal oxide support may be of a single-metal oxide of a first metal or a complex-metal oxide of the first metal and a second metal. A co-catalyst of magnesium oxide (MgO) may anchor the nickel or nickel oxide onto the metal oxide support.

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06-03-2014 дата публикации

Light Absorbing Oxide Materials for Photovoltaic and Photocatalytic Applications and Devices

Номер: US20140060643A1
Принадлежит: University of Illinois

Provided are materials, methods and devices for absorption of visible or solar terrestrial electromagnetic radiation. The disclosed materials, methods and devices employ a multi-component oxide material comprising a solar terrestrial light absorbing metallic oxide and a catalytic oxide to achieve conversion of absorbed visible or solar terrestrial electromagnetic radiation into useful work, such as for photocatalytic or photovoltaic applications.

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20-03-2014 дата публикации

Process for pre-treatment of a catalyst support and catalyst prepared therefrom

Номер: US20140081040A1
Принадлежит: Lyondell Chemical Technology LP

Methods of forming noble metal catalysts, noble metal catalysts formed therefrom and process for using noble metal catalysts are described herein. The methods generally include contacting a support material with a pre-treatment agent including a dilute basic solution of an alkali or alkaline earth metal to form a contacted support; drying the contacted support to form a pre-treated support; and impregnating the pre-treated support with at least one noble metal to form the noble metal catalyst.

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07-01-2016 дата публикации

Process for Limiting Self Heating of Activated Catalysts

Номер: US20160001279A1
Принадлежит:

The invention provides a process for limiting self heating of activated particle catalysts wherein the catalyst particles are placed in motion inside a hot gas flow that passes through them and a liquid composition containing one or several film forming polymer(s) is pulverized onto the particles in motion until a protective layer is obtained on the surface of said particles containing said film forming polymer and having an average thickness of less than or equal to 20 μm. The invention also provides the use of this process to reduce the quantities of toxic gases that may be emitted by the activated catalysts, as well as an activated catalyst for the hydroconversion of hydrocarbons covered with a continuous protective layer that are obtained by this process. 1. A process for limiting self heating of activated particle catalysts , in which the catalyst particles are placed in motion within a hot gas flow passing through them , and a liquid composition containing one or more film forming polymer(s) is pulverized onto the moving particles until on the surface of said particles a protective layer containing said film forming polymer is obtained , that has an average thickness lower than or equal to 20 μm.2. The process according to claim 1 , characterized in that the liquid composition is a solution or a dispersion of the film forming polymer(s) in a solvent claim 1 , and contains preferably from 0.1 to 50% by weight of film forming polymer claim 1 , more preferably from 0.5 to 25% by weight claim 1 , and even more preferably from 1 to 10% by weight of film forming polymer claim 1 , with respect to the total weight of the composition.3. The process according to claim 1 , characterized in that it is implemented in a perforated drum in which the catalyst particles are put in motion claim 1 , with a hot gas flow passing continuously through said perforated drum.4. The process according to claim 1 , characterized in that it is implemented by placing catalyst particles in a ...

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02-01-2020 дата публикации

Catalytic oxidation method and method for producing conjugated diene

Номер: US20200001262A1
Принадлежит: Mitsubishi Chemical Corp

An object of the present invention is to suppress performance deterioration of a molybdenum composite oxide-based catalyst at the time of performing gas-phase catalytic partial oxidation with molecular oxygen by using a tubular reactor. The present invention relates to a catalytic oxidation method using a tubular reactor in which a Mo compound layer containing a Mo compound and a composite oxide catalyst layer containing a Mo composite oxide catalyst are arranged in this order from a reaction raw material supply port side and under a flow of a mixed gas containing 75 vol % of air and 25 vol % of water vapor at 440° C., a Mo sublimation amount of the Mo compound is larger than a Mo sublimation amount of the Mo composite oxide catalyst under the same conditions.

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02-01-2020 дата публикации

TABLETED CATALYST FOR METHANOL SYNTHESIS HAVING INCREASED MECHANICAL STABILITY

Номер: US20200001278A1
Автор: Werner Sebastian
Принадлежит:

The invention relates to an improved catalyst based on a tableted molded catalyst body, containing a metal-containing mixture, containing copper, zinc, and aluminum, with calcium aluminate as a binder material with a weight fraction of calcium aluminate in the range of 1.0% to 30.0%, for synthesizing methanol from synthesis gas. The invention further relates to the production of the catalyst and to the use of the catalyst in the synthesis of methanol from synthesis gas. 1. A shaped catalyst body containing copper , zinc and aluminum , characterized in that the shaped catalyst body is present in tablet form and contains calcium aluminate as binder material with a proportion by weight of calcium aluminate in the range from 1.0% to 30.0% , based on the shaped catalyst body.2. The shaped catalyst body as claimed in claim 1 , wherein the proportion by weight is in the range from 5.0% to 20.0%.3. The shaped catalyst body as claimed in claim 1 , wherein the fracture strength is from 2 to 10%.4. The shaped catalyst body as claimed in claim 1 , wherein the lateral compressive strength after reduction and dry stabilization is from 40 to 200 N claim 1 , preferably from 40 to 100 N claim 1 , more preferably from 50 to 100 N.5. The shaped catalyst body as claimed in claim 1 , wherein the BET surface area is in the range from 70 to 150 m/ claim 1 , preferably from 75 to 140 m/g and particularly preferably from 80 to 120 m/g.6. The shaped catalyst body as claimed in claim 1 , wherein the pore volume claim 1 , measured by means of mercury porosimetry claim 1 , is between 150 mm/g and 400 mm/g claim 1 , preferably between 250 mm/g and 350 mm/g claim 1 , particularly preferably between 300 mm/g and 350 mm/g.7. The shaped catalyst body as claimed in claim 1 , wherein the copper surface area after reduction is between 20 m/g and 50 m/g claim 1 , preferably between 20 m/g and 40 m/g claim 1 , particularly preferably between 25 m/g and 36 m/g.8. The shaped catalyst body as claimed in ...

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03-01-2019 дата публикации

SELECTIVE AMMOXIDATION CATALYSTS

Номер: US20190001310A1
Принадлежит: INEOS EUROPE AG

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 bismuth, molybdenum, iron, cerium and other promoters, with a desirable composition. 120-. (canceled)22. The catalytic composition of claim 21 , wherein 0.3≤i/(i+j+k+l).23. The catalytic composition of claim 21 , wherein 0.5≤i/(i+j+k+l).24. The catalytic composition of claim 21 , wherein 0.7≤i/(i+j+k+l).25. The catalytic composition of claim 21 , wherein z=d+i+j+k+l and 0.3≤(a+h)/z≤1.26. The catalytic composition of claim 21 , wherein 0.65≤a/h<1.5.27. The catalytic composition of claim 21 , wherein 0.7≤a/h<1.5.28. The catalytic composition of claim 21 , wherein 0.8≤a/h<1.5.29. The catalytic composition of claim 21 , wherein 0.90≤a/h≤1.2.30. The catalytic composition of claim 21 , wherein 0.8≤h/b≤5.31. The catalytic composition of claim 21 , wherein 1.2≤h/b≤5.32. The catalytic composition of claim 21 , wherein said catalyst composition comprises MMoOcells with a cell volume defined as β; wherein 625 {acute over (Å)}≤β≤630 {acute over (Å)}. The present invention relates to an improved catalyst for use in the ammoxidation of an unsaturated hydrocarbon to the corresponding unsaturated nitrile. In particular, the present invention is directed to an improved catalytic composition for the ammoxidation of propylene and/or isobutylene to acrylonitrile and/or methacrylonitrile, respectively, wherein said catalyst comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters and wherein said catalyst is characterized by ratio of bismuth to cerium contained in the catalyst.Catalysts containing oxides of iron, bismuth and molybdenum, promoted with suitable elements, have long been used for the conversion of propylene and/or isobutylene at elevated temperatures in the ...

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05-01-2017 дата публикации

Catalyst composite and preparation thereof for isomerization of paraffins

Номер: US20170001924A1
Принадлежит: Hindustan Petroleum Corp Ltd

A catalyst composition is provided for isomerization of paraffins comprising of at least one heteropoly acid and reduced graphene oxide. Further provided are a process for preparation of the catalyst composition and a process for isomerization of paraffins using the catalytic composition.

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04-01-2018 дата публикации

METHOD FOR SYNTHESIZING AN ALKENOIC ACID

Номер: US20180002267A1
Автор: Li Xiukai, Zhang Yugen
Принадлежит:

There is provided a method for synthesizing an alkenoic acid, in particular acrylic acid comprising the step of oxidizing an alkenyl alcohol in the presence of a metal oxide catalyst to form the alkenoic acid. The invention further provides a step of deoxydehydrating a polyol, including glycerol to obtain said alkenyl alcohol including an allyl alcohol. 1. A method for synthesizing an alkenoic acid comprising the step of oxidizing an alkenyl alcohol in the presence of a metal oxide catalyst to form said alkenoic acid , wherein said metal oxide catalyst has the formula MoVWO x is a number between 1 to 10;', 'y is a number between 0.05 to 10;', 'm is a number between 1 to 10; and', 'd is calculated based on the formula 3x+2y+3m., 'where'}2. The method of claim 1 , further comprising claim 1 , before said oxidizing step claim 1 , the step of deoxydehydrating a polyol to obtain said alkenyl alcohol.3. The method of claim 2 , wherein said polyol is a triol claim 2 , tetraol claim 2 , pentanol or hexanol.4. The method of claim 3 , wherein said polyol is selected from the group consisting of glycerol claim 3 , 2-methyl-1 claim 3 ,2 claim 3 ,3-propanetriol claim 3 , 1 claim 3 ,2 claim 3 ,3-butanetriol claim 3 , 2-methyl-1 claim 3 ,2 claim 3 ,3-butanetriol claim 3 , 2-methyl-1 claim 3 ,2 claim 3 ,3 claim 3 ,4-butanetetraol claim 3 , 1 claim 3 ,2 claim 3 ,3-pentanetriol claim 3 , 1 claim 3 ,2 claim 3 ,3-hexanetriol claim 3 , xylitol claim 3 , sorbitol claim 3 , arabinitol claim 3 , ribitol claim 3 , mannitol claim 3 , galactitol claim 3 , iditol claim 3 , erythritol claim 3 , threitol and mixtures thereof.5. The method of claim 1 , wherein said alkenyl alcohol is 2-alkenyl alcohol.6. The method of claim 5 , wherein said 2-alkenyl alcohol is selected from the group consisting of allyl alcohol claim 5 , 2-buten-1-ol claim 5 , 2-hexen-1-ol claim 5 , 2-penten-1 claim 5 ,4 claim 5 ,5-triol claim 5 , 2 claim 5 ,4-hexadien-1 claim 5 ,6-diol claim 5 , 2-hexene-1 claim 5 ,4 claim 5 ,5 ...

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02-01-2020 дата публикации

INTEGRATION OF AN ORGANIC CHLORIDE DECOMPOSITION REACTOR ON THE ISOMERIZATION/DEISOBUTANIZER C5 DRAG STREAM

Номер: US20200002248A1
Принадлежит:

A process for producing an isomerized product comprises sending a feed stream comprising butanes, hydrogen and an organic chloride to a butane isomerization reactor containing an isomerization catalyst to convert a portion of normal butanes in said feed stream to iso-butanes in an isomerized stream. The isomerized stream to a stabilizer column to produce a butane stream containing normal, iso-butanes and C5 hydrocarbons; the butane stream is sent to a column to produce an isomerized upper stream and a bottoms stream comprising a mixture of butanes, C5 hydrocarbons and organic chloride. The bottoms stream is sent to an organic chloride decomposition reactor to produce a mixture of HCl, hydrogen and hydrocarbons. 1. A process for producing i-butane comprising:sending a feed stream comprising butanes, hydrogen and an organic chloride to a butane isomerization reactor containing an isomerization catalyst to convert a portion of normal butanes in said feed stream to iso-butanes in an isomerized stream;sending said isomerized stream to a stabilizer column to produce a butane stream containing normal, iso-butanes and C5 hydrocarbons; andsending said butane stream to a deisobutanizer column to produce an isomerized upper stream, an NC4 rich side draw stream, and a bottoms stream comprising a mixture of butanes, C5 hydrocarbons and said organic chloride; andsending said bottoms stream to an organic chloride decomposition reactor to produce an organic chloride decomposition stream comprising hydrogen and HCl.2. The process of wherein said organic chloride is perchloroethylene.3. The process of further comprising sending said organic chloride decomposition stream through a chloride guard bed to remove HCl.4. The process of further comprising sending said organic chloride decomposition stream through a flash drum to recycle hydrogen and HCl.5. The process of wherein said mixture of butanes claim 1 , C5 hydrocarbons and organic chloride comprises 20-100 wppm perchloroethylene.6. ...

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02-01-2020 дата публикации

GAS CLEAN-UP FOR ALKANE OXIDATIVE DEHYDROGENATION EFFLUENT

Номер: US20200002251A1
Принадлежит:

The invention relates to a process for the production of an alkene by alkane oxidative dehydrogenation, comprising: (a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a catalyst comprising a mixed metal oxide, resulting in a stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne; (b) removing water from at least part of the stream comprising alkene, unconverted alkane, water, carbon dioxide, unconverted oxygen, carbon monoxide and optionally an alkyne resulting from step (a), resulting in a stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne; (c) removing unconverted oxygen, carbon monoxide and optionally alkyne from at least part of the stream comprising alkene, unconverted alkane, carbon dioxide, unconverted oxygen, carbon monoxide and optionally alkyne resulting from step (b), wherein carbon monoxide and optionally alkyne are oxidized into carbon dioxide, resulting in a stream comprising alkene, unconverted alkane and carbon dioxide; (d) optionally removing carbon dioxide from at least part of the stream comprising alkene, unconverted alkane in and carbon dioxide resulting from step (c), resulting in a stream comprising alkene and unconverted alkane; (e) optionally separating at least part of the stream comprising alkene and unconverted alkane resulting from step (d), into a stream comprising alkene and a stream comprising unconverted alkane; (f) optionally recycling unconverted alkane from at least part of the stream comprising unconverted alkane resulting from step (e), to step (a). 1. A process for the production of an alkene by alkane oxidative dehydrogenation , comprising:(a) subjecting a stream comprising an alkane to oxidative dehydrogenation conditions, comprising contacting the alkane with oxygen in the presence of a ...

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03-01-2019 дата публикации

CATALYST AND HYDROCARBON CONVERSION PROCESS UTILIZING THE CATALYST

Номер: US20190002372A1
Принадлежит: SMH Co., Ltd

The present invention relates to a hydrocarbon conversion catalyst comprising i) a catalyst, in oxidic form, metals M1, M2, M3 and M4, wherein: M1 is selected from Si, Al, Zr, and mixtures thereof; M2 is selected from Pt, Cr, and mixtures thereof; M3 is selected from W, Mo, Re and mixtures thereof; M4 is selected from Sn, K, Y, Yb and mixtures thereof; and ii) a hydrogen scavenger selected from at least one alkali and/or alkaline earth metal derivative, preferably in metallic, hydride, salt, complex or alloy form; as well as a hydrocarbon conversion process utilizing this catalyst. 1. Hydrocarbon conversion catalyst comprising , M1 is selected from Si, Al, Zr, and mixtures thereof;', 'M2 is selected from Pt, Cr, and mixtures thereof;', 'M3 is selected from W, Mo, Re and mixtures thereof;', 'M4 is selected from Sn, K, Y, Yb, and mixtures thereof; wherein', 'the mass fraction of M1 is in the range of 0.1 to 0.8;', 'the mass fraction of M2 is in the range of 0.001 to 0.2;', 'the mass fraction of M3 is in the range of 0.001 to 0.2;', 'the mass fraction of M4 is in the range of 0.0001 to 0.2; and', 'the mass fraction of oxygen is in the range of 0.1 to 0.8;', 'and, 'i) a catalyst in oxidic form, comprising metals M1, M2, M3 and M4, whereinii) a hydrogen scavenger selected from at least one alkali and/or alkaline earth metal derivative.2. Hydrocarbon conversion catalyst according to claim 1 , wherein the at least one alkali and/or alkaline earth metal is selected from Li claim 1 , Na claim 1 , K claim 1 , Mg claim 1 , Ca claim 1 , and mixtures thereof.3. Hydrocarbon conversion catalyst according to claim 1 , wherein weight ratio of catalyst i) and hydrogen scavenger ii) is from 1-99 to 99-1.4. Hydrocarbon conversion catalyst according to claim 1 , wherein M2 is Pt and M3 is W.5. Process for conversion of a hydrocarbon feed comprising saturated hydrocarbon compounds to olefin products comprising contacting a hydrocarbon feed stream with the hydrocarbon conversion catalyst ...

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03-01-2019 дата публикации

PROCESS FOR PRODUCING CHLOROTRIFLUOROETHYLENE

Номер: US20190002374A1
Принадлежит:

The present invention relates, at least in part, to a process for making chlorotrifluoroethylene (CFO-1113) from 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a). In certain aspects, the process includes dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides; (ii) one or more halogenated metal oxides; (iii) one or more zero-valent metals or metal alloys; (iv) combinations thereof. 1. A process for producing chlorotrifluoroethylene (CFO-1113) comprising:dehydrochlorinating 1,2-dichloro-1,1,2-trifluoroethane (HCFC-123a) in the presence of a catalyst selected from the group consisting of (i) one or more metal halides; (ii) one or more halogenated metal oxides; (iii) one or more zero-valent metals or metal alloys; (iv) combinations thereof to produce a reaction product comprising CFO-1113.2. The process of wherein the conversion of HCFC-123a is at least about 5 wt. %.3. The process of wherein a selectivity to chlorotrifluoroethylene is at least about 70 wt. %.4. The process of wherein said reaction product comprises less than about 10 wt. % of CFO-1112.5. The process of wherein the dehydrochlorinating step is conducted at a temperature greater than about 400° C.6. The process of wherein a substantial portion of the dehydrochlorinating step is carried out at a temperature of from about 480° C. to about 550° C.7. The process of wherein catalyst comprises a mono-valent metal halide claim 1 , a bi-valent metal halide claim 1 , a tri-valent metal halide claim 1 , or a combination thereof.8. The process of wherein catalyst comprises a mono-valent metal halide claim 1 , a bi-valent metal halide or a combination thereof.9. The process of wherein the catalyst comprises at least one metal halide wherein the component metal is selected from the group consisting of Cr claim 1 , Fe claim 1 , Mg claim 1 , Ca claim 1 , Ni claim 1 , Zn claim 1 , Pd claim 1 , Li claim 1 , Na claim ...

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03-01-2019 дата публикации

Process For Production of Ketones From Secondary Alcohols

Номер: US20190002384A1
Принадлежит:

The present invention relates to the process for production of ketones from secondary alcohols by the use of a hybrid material, formed by the dichlorohydrotris(pyrazol-1-yl)methane iron (II) complex covalently bound to multi-walled carbon nanotubes functionalized with superficial carboxylate groups, as efficient and selective catalyst of peroxidative oxidation, microwave-assisted and without solvent addition. 1. A process for production of ketones from secondary alcohols , assisted by microwave radiation comprising the mixture of an oxidising agent with a hybrid , material dichlorohydrotris (pyrazol-1-yl) methane iron (II) covalently bound to multi-walled carbon nanotubes functionalized with superficial carboxylate groups as catalyst , at a temperature of 80° C.2. The process according to claim 1 , wherein the oxidising agent is a 70% aqueous solution of tert-butyl hydroperoxide.3. The process according to claim 1 , wherein the dichlorohydrotris (pyrazol-1-yl) methane iron (II) complex contains an iron content of 2% (w/w).4. The process according to claim 1 , wherein the secondary alcohols are selected from: cyclohexanol claim 1 , 1-phenylethanol claim 1 , o- claim 1 , m- or p-cresols claim 1 , linear alcohols such as 2-hexanol claim 1 , 3-hexanol claim 1 , 1-butanol or 2-butanol claim 1 , and diols claim 1 , among others.5. The process according to claim 1 , wherein the reaction time is one hour.6. The process according to claim 1 , which is free from solvent addition.7. The process according to claim 1 , wherein the catalyst dichlorohydrotris (pyrazol-1-yl) methane iron (II) covalently bound to multiple wall carbon nanotubes functionalized with superficial carboxylate groups is reusable in at least six subsequent catalytic cycles. The present invention relates to the process for production of ketones from secondary alcohols by the use of a hybrid material, formed by the dichlorohydrotris(pyrazol-1-yl)methane iron (II) complex covalently bound to multi-walled ...

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03-01-2019 дата публикации

Sustainable Oxygen Carriers for Chemical Looping Combustion with Oxygen Uncoupling and Methods for Their Manufacture

Номер: US20190003704A1
Принадлежит: Institutt for Energiteknikk IFE

An oxygen carrier (OC) for use in Chemical Looping technology with Oxygen Uncoupling (CLOU) for the combustion of carbonaceous fuels, in which commercial grade metal oxides selected from the group consisting of Cu, Mn, and Co oxides and mixtures thereof constitute a primary oxygen carrier component. The oxygen carrier contains, at least, a secondary oxygen carrier component which is comprised by low-value industrial materials which already contain metal oxides selected from the group consisting of Cu, Mn, Co, Fe, Ni oxides or mixtures thereof. The secondary oxygen carrier component has a minimum oxygen carrying capacity of 1 g of O2 per 100 g material in chemical looping reactions. Methods for the manufacture of the OC are also disclosed.

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04-01-2018 дата публикации

Carbon supported catalyst comprising a modifier and process for preparing the carbon supported catalyst

Номер: US20180006313A1
Автор: Andreas Haas
Принадлежит: BASF SE

The invention is related to a carbon supported catalyst comprising a carbon-comprising support with a BET surface area in a range from 400 m 2 /g to 2000 m 2 /g, a modifier comprising at least one mixed metal oxide, comprising niobium and titanium, and/or a mixture, comprising niobium oxide and titanium oxide, a catalytically active metal compound, wherein the catalytically active metal compound is platinum or an alloy comprising platinum and a second metal or an intermetallic compound comprising platinum and a second metal, the second metal being selected from the group consisting of cobalt, nickel, chromium, copper, palladium, gold, ruthenium, scandium, yttrium, lanthanum, niobium, iron, vanadium and titanium. The invention is further related to a process for preparing the carbon supported catalyst.

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20-01-2022 дата публикации

Process for preparing a cobalt-containing catalyst precursor and process for hydrocarbon synthesis

Номер: US20220016605A1
Принадлежит: Sasol South Africa Pty Ltd

The invention provides a process for preparing a cobalt-containing catalyst precursor. The process includes calcining a loaded catalyst support comprising a silica (SiO2) catalyst support supporting cobalt nitrate to convert the cobalt nitrate into cobalt oxide. The calcination includes heating the loaded catalyst support at a high heating rate, which does not fall below 10° C./minute, during at least a temperature range A. The temperature range A is from the lowest temperature at which calcination of the loaded catalyst support begins to 165° C. Gas flow is effected over the loaded catalyst support during at least the temperature range A. The catalyst precursor is reduced to obtain a Fischer-Tropsch catalyst.

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12-01-2017 дата публикации

METHOD OF PREPARATION OF PEROVSKITE CATALYST

Номер: US20170007988A1
Принадлежит:

A preparation method of perovskite catalyst, represented by the following Chemical Formula 1: LaAgMnO(0.1≦x≦0.9), includes the steps of 1) preparing a metal precursor solution including a lanthanum metal precursor, a manganese metal precursor and a silver metal precursor, 2) adding maleic or citric acid to the metal precursor solution, 3) drying the mixture separately several times with sequentially elevating the temperature in the range of 160 to 210° C., and 4) calcining the dried mixture at 600 to 900° C. for 3 hours to 7 hours. 1. A preparation method of perovskite catalyst , represented by the following Chemical Formula 1: LaAgMnO(0.1≦x≦0.9) , including the steps of:1) preparing a metal precursor solution including a lanthanum metal precursor, a manganese metal precursor and a silver metal precursor;2) adding citric acid to the metal precursor solution;3) drying the mixture separately several times while sequentially elevating the temperature in the range of 160 to 210° C.; and4) calcining the dried mixture at 600 to 900° C. for 3 hours to 7 hours.2. The preparation method according to claim 1 , wherein the lanthanum metal precursor is La(NO).6HO.3. The preparation method according to claim 1 , wherein the manganese metal precursor is Mn(NO).6HO.4. The preparation method according to claim 1 , wherein the silver metal precursor is AgNO.5. The preparation method according to claim 1 , wherein the solvent of the metal precursor solution is distilled water.6. The preparation method according to claim 1 , wherein the amount of citric acid added is 0.2 to 2.0 moles per the total mole of lanthanum claim 1 , manganese and silver in the metal precursor solution.7. The preparation method according to claim 1 , further including the step of stirring the solution at 70 to 90° C. for 6 to 10 hours and drying the same at 100 to 120° C. for 8 to 14 hours claim 1 , between step 2) and step 3).8. The preparation method according to claim 1 , wherein step 3) is carried out by ...

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11-01-2018 дата публикации

MULTI-ZONED CATALYST SYSTEM FOR OXIDATION OF O-XYLENE AND/OR NAPHTHALENE TO PHTHALIC ANHYDRIDE

Номер: US20180008962A1
Принадлежит:

The present invention relates to a catalyst system for oxidation of o-xylene and/or naphthalene to phthalic anhydride (PA) comprising at least four catalyst zones arranged in succession in the reaction tube and filled with catalysts of different chemical composition wherein the active material of the catalysts comprise vanadium and titanium dioxide and the active material of the catalyst in the last catalyst zone towards the reactor outlet has an antimony content (calculated as antimony trioxide) between 0.7 to 3.0 wt. %. The present invention further relates to a process for gas phase oxidation in which a gas stream comprising at least one hydrocarbon and molecular oxygen is passed through a catalyst system which comprises at least four catalyst zones arranged in succession in the reaction tube and filled with catalysts of different chemical composition wherein the active materials of the catalysts comprise vanadium and titanium dioxide and the active material of the catalyst in the last catalyst zone towards the reactor outlet has an antimony content (calculated as antimony trioxide) between 0.7 to 3.0 wt. %. 114.-. (canceled)15. A catalyst system for oxidation of o-xylene and/or naphthalene to phthalic anhydride comprising at least four catalyst zones arranged in succession in the reaction tube and filled with catalysts of different chemical composition wherein the catalytically active material of the catalyst is applied to an inert catalyst carrier and comprises vanadium and titanium dioxide and the active material of the catalyst in the last catalyst zone towards the reactor outlet has an antimony content (calculated as antimony trioxide) between 0.7 to 3.0 wt. %.16. The catalyst system according to claim 15 , wherein the active materials of the catalysts in the last two catalyst zones towards the reactor outlet have a lower average antimony content than the active materials of the catalysts in the remaining catalyst zones towards the reactor inlet.17. The ...

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14-01-2016 дата публикации

Catalysts for the mechanocatalytic oxidative depolymerization of polymer-containing materials and methods of making oxidized reaction products using same

Номер: US20160009621A1
Автор: Richard Blair

The presently disclosed and/or claimed inventive concept(s) relates generally to oxidative oxidized reaction products made from the mechanocatalytic oxidative depolymerization of lignin. More particularly, but without limitation, the mechanocatalytic oxidative depolymerization of lignin is performed in a non-aqueous/non-solvent based and solvent-free process, i.e., via a solid-solid mechanocatalytic oxidative reaction methodology. In one particular embodiment, the process of making such oxidative oxidized reaction products includes, without limitation, the step of mechanocatalytically reacting an oxidation catalyst with lignin or a lignin-containing material. The oxidative reaction products obtained from the process include, for example, at least one of vanillin, and syringealdehyde, vanillic acid, and syringic acid.

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14-01-2016 дата публикации

PROCESS FOR PREPARING V-Ti-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS

Номер: US20160009626A1
Принадлежит: Eastman Chemical Co

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. Additionally, the catalyst composition is catalytically active towards the formation of acrylic acid from methylene diacetate and methacrylic acid from methylene dipropionate; both reactions are carried out with high space time yields.

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10-01-2019 дата публикации

CATALYST COMPOSITIONS AND PROCESS FOR DIRECT PRODUCTION OF HYDROGEN CYANIDE IN AN ACRYLONITRILE REACTOR FEED STREAM

Номер: US20190009252A1

The present invention relates to catalyst compositions containing a mixed oxide catalyst of formula (I) or formula (II) as described herein, their preparation, and their use in a process for ammoxidation of various organic compounds to their corresponding nitriles and to the selective catalytic oxidation of excess NHpresent in effluent gas streams to Nand/or NO. 1. A catalyst composition comprising a mixed oxide catalyst of formula (I) or (II):{'br': None, 'sub': 12', 'a', 'b', 'c', 'd', 'e', 'f', 'h, 'sup': 1', '2', '3', '4', '5', '6, 'MoXXXXXXO\u2003\u2003(I)'}{'br': None, 'sub': i', 'j', 'k', 'm', 'n', 'q', 'x', 'y', 'r, 'FeMoCrBiMNQXYO\u2003\u2003(II)'} [{'sup': '1', 'Xis Cr and/or W;'}, {'sup': '2', 'Xis Bi, Sb, As, P, and/or a rare earth metal;'}, {'sup': '3', 'Xis Fe, Ru, and/or Os;'}, {'sup': '4', 'Xis Ti, Zr, Hf, B, Al, Ga, In, TI, Si, Ge, Sn, and/or Pb;'}, {'sup': '5', 'Xis Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Mn, Re, V, Nb, Ta, Se, and/or Te;'}, {'sup': '6', 'Xis an alkaline earth metal and/or an alkali metal;'}, '0≤a≤5;', '0.03≤b≤25;', '0≤c≤20;', '0≤d≤200;', '0≤e≤8;', '0≤f≤3; and', 'h is the number of oxygen atoms required to satisfy the valence requirements of the component elements other than oxygen present in formula (I), where', '1≤c+d+e+f≤200;', '0≤e+f≤8; and, 'wherein in the formula (I) M is Ce and/or Sb;', 'N is La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, B, Al, Ga, In, TI, Si, Ge, Sn, Pb, P, and/or As;', 'Q is W, Ru, and/or Os;', 'X is Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Mn, Re, V, Nb, Ta, Se, and/or Te;', 'Y is an alkaline earth metal and/or an alkali metal;', '0.2≤i≤100;', '0≤j≤2;', '0≤k≤2;', '0.05≤m≤10;', '0≤n≤200;', '0≤q≤8;', '0≤x≤30;', '0≤y≤8;', 'j and kj; and', 'r is the number of oxygen atoms required to satisfy the valence requirements of the component elements other than oxygen present in formula (II),, 'wherein in the formula (II) 4≤m+n+q+x+y≤200;', '0≤q+x+y≤30; and, 'wherein{'sup ...

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10-01-2019 дата публикации

CORE-SHELL STRUCTURE SUPPORTED TUNGSTEN COMPOSITE CATALYST AND PREPARATION METHOD AND USE THEREOF

Номер: US20190009255A1
Принадлежит:

The present invention discloses a core-shell structure supported tungsten composite catalyst and a preparation method and use thereof. Most of the existing synthesis methods of the main ring of quinolone drugs have the defects of many synthesis steps, cumbersome operation, large amount of three wastes, higher costs and the like. The present invention prepares a magnetic separable core-shell supported tungsten composite catalyst, WO/SiO/FeO, by preparing FeOcolloid and SiO/FeOcomposite nano-particles. This magnetic separable core-shell supported tungsten composite catalyst, WO/SiO/FeO, is used to catalyze and synthesize quinolone compounds. The present invention provides an efficient preparation method of quinolone compounds using a catalyst which can be recovered by magnetic separation and recycled. The catalyst prepared by the present invention can be reused in the preparation of quinolone compounds and still retains the original activity without deactivation, which not only greatly improves the production efficiency, but also reduces the environmental pollution. 1. A preparation method of a core-shell structure supported tungsten composite catalyst , comprising the steps of:{'sub': 3', '4, 'step 1), adding a reducing agent and a base into an aqueous solution of iron compound, heating to 50-80° C. and stirring to obtain FeOcolloid;'}{'sub': 3', '4', '2', '3', '4, 'step 2), adding the FeOcolloid obtained in the step 1), tetraethyl orthosilicate and a hydrolysis catalyst into an appropriate amount of dispersion solvent and allowing to react for 4-8 hours to obtain SiO/FeOcomposite nano-particles; and'}{'sub': 2', '3', '4', '3', '2', '3', '4, 'step 3), adding the SiO/FeOcomposite nano-particles obtained in step 2) into an aqueous solution of ammonium metatungstate, stirring for 8-14 hours and drying at 90-150° C. to obtain a first solid, which is calcined at 450-650° C. for 1-6 hours to obtain a magnetic separable core-shell structure supported tungsten composite ...

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10-01-2019 дата публикации

LIGANDS AND CATALYSTS

Номер: US20190009259A1
Принадлежит:

The present invention relates to a compound of formula (I) and salts thereof, 2. A compound according to wherein Rand Rare the same or different and selected from a Cto Calkyl group; or{'sup': 1', '2, 'sub': 7', '10, 'Rand Rtogether with the carbon atom to which they are attached form a Cto Ccycloalkyl group.'}3. A compound according to wherein Rand Rare the same or different and selected from a Cto Calkyl group; or{'sup': 1', '2, 'sub': 7', '9, 'Rand Rtogether with the carbon atom to which they are attached form a Cto Ccycloalkyl group.'}4. A compound according to wherein Rand Rare the same or different and selected from a Calkyl group; or{'sup': 1', '2, 'sub': 7', '9, 'Rand Rtogether with the carbon atom to which they are attached form a Cto Ccycloalkyl group.'}5. A compound according to wherein Rand Rare both unbranched alkyl groups.6. A compound according to wherein Rand Rare both n-butyl.8. A compound according to wherein the compound is non-racemic.9. A compound according to wherein the compound is the (R claim 1 ,R)- or (S claim 1 ,S)-diastereoisomer.10. A catalytic complex comprising a metal claim 1 , a counter ion and a compound according to .11. A catalytic complex according to wherein the metal is copper and the counterion is triflate.12. A process comprising contacting a hydrometallated first compound with a second compound comprising a conjugated π-bond system which is capable of undergoing a 1 claim 10 ,4-conjugate addition reaction or a 1 claim 10 ,6-conjugate addition reaction in the presence of a compound according to claim 10 , or a catalyst according to claim 10 , to provide a stereocentre in stereoisomeric excess.13. The process according to wherein the stereocentre is an all-carbon quaternary stereocentre.14. The process according to wherein the stereoisomeric excess is greater than 90%.15. The process according to wherein the stereocentre is part of an acyclic system.16. The process of claim 12 , further comprising contacting a first compound ...

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10-01-2019 дата публикации

CATALYSTS FOR PETROCHEMICAL CATALYSIS

Номер: US20190010096A1
Принадлежит:

Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogeneous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed. 185-. (canceled)86. A method for the oxidative coupling of methane , the method comprising contacting methane with a catalyst at temperatures ranging from about 550° C. to about 750° C. , wherein the method comprises a methane conversion of greater than 20% and a C2 selectivity of greater than 50% , and wherein the catalyst comprises the following formula:{'br': None, 'sub': x', 'y', 'z, 'ABO;'} A is an element from the lanthanides or group 2, 3, 4, 6 or 13;', 'B is an element from groups 4, 12 or 13 of the periodic table or Ce, Pr, Nd, Sm, Eu, Gd, Tb or Ho;', 'O is an oxygen anion; and', 'x, y and z are each independently numbers greater than 0,, 'whereinthe catalyst further comprising one or more dopants from any one of groups 2, 3 or the lanthanides, and provided that A and B are not the same.87. The method of claim 86 , wherein A is Ba claim 86 , Zr claim 86 , Sr claim 86 , Sm claim 86 , Hf claim 86 , Gd claim 86 , Er claim 86 , Y claim 86 , Ca claim 86 , La claim 86 , Mg claim 86 , W claim 86 , B claim 86 , Tb or Ce.88. The method of claim 86 , wherein B is Zn claim 86 , Hf claim 86 , Zr claim 86 , Al claim 86 , Ti claim 86 , Pr claim 86 , Nd claim 86 , Ce claim 86 , Sm claim 86 , Eu claim 86 , Gd claim 86 , Tb or Ho.89. The method of claim 86 , wherein A is from group 2 claim 86 , and B is from group 4.90. The method of claim 86 , wherein A is Ba claim 86 , Sr or Ca.91. The method of claim 86 , wherein B is Ti claim 86 , Zr or Hf.92. The method of claim 86 , wherein the catalyst has the formula ABO.93. The method of claim 86 , wherein the catalyst comprises one or more dopant from group 2.94. The method of claim 86 , wherein the catalyst comprises ...

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19-01-2017 дата публикации

Mesoporous cobalt-metal oxide catalyst for fischer-tropsch synthesis reactions and a preparing method thereof

Номер: US20170014808A1

The present invention relates to a mesoporous cobalt-metal oxide catalyst for the Fischer-Tropsch synthesis and a method of preparing the same. The mesoporous cobalt-metal oxide catalyst for the Fischer-Tropsch synthesis of the present invention can very stably maintain the mesoporous structure even under a H 2 -rich high-temperature reduction condition and under a reaction condition of the low-temperature Fischer-Tropsch synthesis, easily transport reactants to the active site of the catalyst due to structural stability, and facilitate the release of heavier hydrocarbon products after production thereof. Additionally, unlike the conventional cobalt-based catalysts which are prepared by adding various co-catalysts for the purpose of improving reducibility, activity, selectivity and increasing thermal stability, etc., the mesoporous cobalt-metal oxide catalyst for the Fischer-Tropsch synthesis can constantly maintain conversion and selectivity at high levels without further requiring co-catalysts and thus it can be very effectively used for the Fischer-Tropsch synthesis.

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15-01-2015 дата публикации

Coating for reducing nitrogen oxides

Номер: US20150017083A1
Автор: Teuvo Maunula
Принадлежит: DINEX ECOCAT OY

A catalyst coating for use in a hydrolysis catalyst (H-catalyst) for the reduction of nitrogen oxides, a manufacturing method for such a coating, a catalyst structure and its use are described. The H-catalyst includes alkaline compounds, which are capable of adsorbing HNCO and/or nitrogen oxides and which include alkali and alkaline earth metals, lanthanum and/or yttrium and/or hafnium and/or prasedium and/or gallium, and/or zirconium for promoting reduction, such as for promoting the hydrolysis of urea and the formation of ammonia and/or the selective reduction of nitrogen oxides.

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17-01-2019 дата публикации

MULTI-METALLIC CATALYST DOPED WITH PHOSPHORUS AND A LANTHANIDE

Номер: US20190015819A1
Принадлежит: IFP ENERGIES NOUVELLES

The invention relates to a catalyst comprising a support, at least one noble metal M, tin, phosphorus and at least one lanthanide group element, the content of phosphorus element being comprised between 0.4 and 1% by weight, and the content of lanthanide group element(s) being less than 1% by weight with respect to the weight of the catalyst. The invention also relates to the process for the preparation of the catalyst and the use thereof in reforming. 1. Catalyst comprising a support , at least one noble metal M , tin , phosphorus and at least one lanthanide group element , the content of phosphorus element being comprised between 0.4 and 1% by weight , and the content of lanthanide group element(s) being less than 1% by weight with respect to the weight of the catalyst.2. Catalyst according to claim 1 , in which the content of noble metal M is comprised between 0.02 and 2% by weight with respect to the weight of the catalyst.3. Catalyst according to claim 1 , in which the metal M is platinum or palladium.4. Catalyst according to claim 1 , in which the tin content is comprised between 0.005 and 10% by weight with respect to the weight of the catalyst.5. Catalyst according to claim 1 , in which the content of lanthanide group element is comprised between 0.01 and 0.5% by weight with respect to the weight of the catalyst.6. Catalyst according to claim 1 , in which the lanthanide group element is cerium.7. Catalyst according to claim 1 , in which the Sn/M atomic ratio is comprised between 0.5 and 4.0 claim 1 , the P/M ratio is comprised between 0.2 and 30.0 claim 1 , and the lanthanide(s)/M ratio is comprised between 0.1 and 5.0.8. Catalyst according to claim 1 , in which the support comprises silica claim 1 , alumina or silica-alumina.9. Catalyst according to claim 1 , which additionally contains a halogenated compound.10. Catalyst according to claim 9 , in which the content of halogenated compound is comprised between 0.1 and 8% by weight with respect to the weight ...

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17-01-2019 дата публикации

CATALYST FOR METAL MERCURY OXIDATION REACTIONS AND NITROGEN OXIDE REDUCTION REACTIONS, AND EXHAUST GAS PURIFICATION METHOD

Номер: US20190015821A1
Принадлежит: Mitsubishi Hitachi Power Systems, Ltd.

A catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide, comprising an oxide of titanium, an oxide of molybdenum, an oxide of vanadium, an oxide of phosphorus and gypsum is obtained by kneading titanium dioxide, ammonium molybdate, ammonium metavanadate, phosphoric acid, gypsum dihydrate and water using a kneader to obtain a paste, applying the paste to a metal lath substrate, and then drying and calcining the resultant. 1. A catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide , comprising:an oxide of titanium,an oxide of molybdenum and/or tungsten,an oxide of vanadium,an oxide of phosphorus, andgypsum.2. The catalyst according to claim 1 , wherein a ratio of the dry-based mass of gypsum dihydrate to the mass of the oxide of titanium is 1/99 to 40/60.3. A method for exhaust gas purification claim 1 , comprising bringing an exhaust gas containing metallic mercury claim 1 , nitrogen oxide and sulfur dioxide in contact with a catalyst comprising an oxide of titanium claim 1 , an oxide of molybdenum and/or tungsten claim 1 , an oxide of vanadium claim 1 , an oxide of phosphorus and gypsum to oxidize the metallic mercury and reduce the nitrogen oxide. The present invention relates to a catalyst for oxidation reaction of metallic mercury and reduction reaction of nitrogen oxide, and a method for exhaust gas purification. More specifically, the present invention relates to a catalyst that is capable of accelerating gas phase oxidation reaction of metallic mercury and gas phase reduction reaction of nitrogen oxide, and is also capable of suppressing gas phase oxidation reaction of sulfur dioxide, as well as a method for purifying exhaust gas, which comprises oxidizing metallic mercury and reducing nitrogen oxide.There is concern that metallic mercury contained in flue gas discharged from power stations, factories, automobiles and the like affects the environment. Hence, removal of metallic ...

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18-01-2018 дата публикации

Method for producing conjugated diolefin

Номер: US20180016208A1
Принадлежит: Asahi Kasei Chemicals Corp

A method for producing a conjugated diolefin is configured as follows. A monoolefin having four or more carbon atoms is fed from a monoolefin feed nozzle(s) installed at n place(s) (n=1, 2, . . . , n). In addition, at least 50% or more of a total amount of an oxygen-containing gas is fed from an oxygen-containing gas feed nozzle located at a bottom of a fluidized bed reactor. Furthermore, the monoolefin feed nozzles at distances a1, a2, . . . , an from the oxygen-containing gas feed nozzle feed the monoolefin having four or more carbon atoms at ratios of b1, b2, . . . , bn (b1+b2+ . . . +bn=1), respectively, and an arithmetic mean value represented by the following formula and obtained from the above distances and the above ratios is 100 mm or more. arithmetic mean value= a 1* b 1+ a 2* b 2+ . . . + an*bn

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17-01-2019 дата публикации

PEROVSKITE-CATALYZED HYDROGENOLYSIS OF HETEROATOM-CONTAINING COMPOUNDS

Номер: US20190016646A1
Принадлежит:

Perovskite compounds that catalyze hydrogenolysis (e.g., hydrodeoxygenation, hydrodenitrogenation, and/or hydrodesulfurization) of heteroatom-containing compounds, as well as associated systems and methods, are generally described. In some embodiments, methods are provided for contacting a perovskite compound with a heteroatom-containing compound (e.g., a compound comprising oxygen, nitrogen, and/or sulfur) in the presence of hydrogen gas (H) such that the perovskite compound catalyzes hydrogenolysis of the heteratom-containing compound to produce one or more hydrocarbon products (e.g., one or more aromatic hydrocarbons and/or aliphatic hydrocarbons). According to certain embodiments, the perovskite compound has the formula ABDO, where A comprises a lanthanide, B comprises an alkaline earth metal, D comprises a transition metal, and x is greater than or equal to 0 and less than or equal to 1. Compounds, systems, and methods described herein may be useful for applications involving petroleum (e.g., crude oil) and/or biofuels. 1. A method , comprising:{'sub': '2', 'contacting a perovskite compound with a heteroatom-containing compound in the presence of H, wherein the perovskite compound catalyzes hydrogenolysis of the heteroatom-containing compound to produce one or more hydrocarbon products.'}2. The method of claim 1 , wherein the perovskite compound has the formula ABDO claim 1 , wherein:A comprises a lanthanide;B comprises an alkaline earth metal;D comprises a transition metal; andx is greater than or equal to 0 and less than or equal to 1.3. The method of claim 1 , wherein the heteroatom-containing compound comprises N claim 1 , O claim 1 , and/or S.4. The method of claim 1 , wherein hydrogenolysis comprises hydrodeoxygenation claim 1 , hydrodenitrogenation claim 1 , and/or hydrodesulfurization.5. The method of claim 2 , wherein A comprises La.6. The method of claim 2 , wherein B comprises Mg claim 2 , Ca claim 2 , Sr claim 2 , and/or Ba.7. The method of claim 6 ...

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17-01-2019 дата публикации

CATALYTIC BODY COATED WITH METAL OXIDE, METHOD OF MANUFACTURING THE SAME, AND METHOD OF PREPARING 1,3-BUTADIENE USING THE SAME

Номер: US20190016649A1
Принадлежит:

According to an embodiment of the present invention, there are provided a catalytic body, a method of manufacturing the same, and a method of preparing 1,3-butadiene using the same. The catalytic body includes an inactive support; an intermediate layer disposed on a surface of the inactive support; and an active layer disposed on a surface of the intermediate layer, wherein the active layer includes catalyst powder and a binder. 1. A catalytic body comprising:an inactive support;an intermediate layer disposed on a surface of the inactive support; andan active layer disposed on a surface of the intermediate layer,wherein the active layer includes catalyst powder and a binder.2. The catalytic body of claim 1 , wherein the inactive support has a porosity of 70 vol % or less.3. The catalytic body of claim 2 , wherein the inactive support is of one shape selected from the group consisting of a spherical shape claim 2 , a cylindrical shape claim 2 , a ring shape claim 2 , a platy shape claim 2 , and a combination of two or more thereof.4. The catalytic body of claim 3 , wherein the inactive support is one selected from the group consisting of alumina claim 3 , silica claim 3 , zirconia claim 3 , silicon carbide claim 3 , cordierite claim 3 , and a combination of two or more thereof.5. The catalytic body of claim 1 , wherein the intermediate layer may consist of one selected from the group consisting of alumina claim 1 , silica claim 1 , kaolin claim 1 , TiO claim 1 , ZnO claim 1 , bentonite claim 1 , and a combination of two or more thereof.6. The catalytic body of claim 1 , wherein the intermediate layer has a weight of 3 to 15 g/L with respect to a volume of the inactive support.7. The catalytic body of claim 1 , wherein the catalyst powder is an oxide derived from one selected from the group consisting of iron claim 1 , magnesium claim 1 , manganese claim 1 , zinc claim 1 , bismuth claim 1 , molybdenum claim 1 , and a combination of two or more thereof.8. The catalytic ...

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17-01-2019 дата публикации

METHANOL PROCESS

Номер: US20190016655A1
Автор: Yiu Kar Chi
Принадлежит:

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a cooled methanol synthesis catalyst to form a first product gas stream, (ii) recovering methanol from the first product gas stream thereby forming a first methanol-depleted gas mixture, (iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic metre of catalyst than the second synthesis reactor, none of the loop recycle gas stream is fed to the first synthesis gas mixture and the recycle ratio of the loop recycle gas stream to form the second synthesis gas mixture is in the range 1.1:1 to 6:1. 1. A process for synthesizing methanol comprising the steps of:(i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a first cooled methanol synthesis catalyst to form a first product gas stream,(ii) recovering methanol from the first product gas stream to form a first methanol-depleted gas mixture,(iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture,(iv) passing the second synthesis gas mixture through a second synthesis reactor containing a second cooled methanol synthesis catalyst to form a second product gas stream,(v) recovering methanol from the second product gas stream to form a second methanol-depleted gas mixture, and(vi) using at ...

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16-01-2020 дата публикации

Dinuclear rhodium complex-doped platinum/hollow mesoporous silica sphere composite material, and preparation method and application thereof

Номер: US20200016575A1
Автор: Dongyun Chen, Jianmei Lu
Принадлежит: SUZHOU UNIVERSITY

The invention discloses a dinuclear rhodium complex-doped platinum/hollow mesoporous silica sphere composite material, and a preparation method and an application thereof. The preparation method comprises the following steps: preparing hollow mesoporous silica by a selective etching technology, uniformly distributed a precious metal platinum in the channels of the hollow mesoporous silica by using simple impregnation, and mixing the obtained catalyst with dinuclear rhodium complex adsorbed silica gel to obtain the composite material integrating a chromogenic probe with the catalyst. The preparation method is simple, and the chromogenic performance of the dinuclear rhodium complex material and catalysis performance of the catalyst can achieve simultaneous detection and catalyst of CO; and the dinuclear rhodium complex has obvious response to CO, and has chromogenic change in the presence of 50 ppm CO, and the product prepared through the preparation method has excellent CO detection and treatment properties, and highly facilitates industrial application.

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21-01-2021 дата публикации

COMPOSITION BASED ON OXIDES OF CERIUM, OF NIOBIUM AND, OPTIONALLY, OF ZIRCONIUM AND USE THEREOF IN CATALYSIS

Номер: US20210016251A1
Принадлежит:

A composition based on cerium and niobium oxide in a proportion of niobium oxide of 2% to 20% is described. This composition can include zirconium oxide, optionally 50% of cerium oxide, 2% to 20% of niobium oxide, and at most 48% of zirconium oxide. Also described, is the use of the composition for treating exhaust gases. 1. A composition comprising niobium oxide with the following proportions by weight:niobium oxide: from 2% to 20%; andthe remainder as cerium oxide.2. The composition as claimed in claim 1 , wherein the composition further comprises zirconium oxide with the following proportions by weight:cerium oxide: at least 50%;niobium oxide: from 2% to 20%; andzirconium oxide: up to 48%.3. The composition as claimed in claim 2 , wherein the composition further comprises at least one oxide of an element M selected from the group consisting of tungsten claim 2 , molybdenum claim 2 , iron claim 2 , copper claim 2 , silicon claim 2 , aluminum claim 2 , manganese claim 2 , titanium claim 2 , vanadium and a rare earth metal other than cerium claim 2 , with the following proportions by weight:cerium oxide: at least 50%;niobium oxide: from 2% to 20%;oxide of the element M: up to 20%; andthe remainder as zirconium oxide.4. The composition as claimed in claim 1 , wherein after calcination at 800° C. for 4 hours claim 1 , the composition exhibits an acidity of at least 6×10this acidity being expressed in ml of ammonia per mof composition.5. The composition as claimed in claim 1 , wherein the composition comprises niobium oxide in a proportion by weight of between 3% and 15%.6. The composition as claimed in claim 2 , wherein the composition comprises cerium oxide in a proportion by weight of at least 65% and niobium oxide in a proportion by weight between 2% and 12%.7. The composition as claimed in claim 6 , wherein the composition comprises cerium oxide in a proportion by weight of at least 70%.8. The composition as claimed in claim 6 , wherein the composition comprises ...

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21-01-2021 дата публикации

METHOD FOR PRODUCING BETA-COBALT MOLYBDENUM OXIDE CATALYST HAVING ENHANCED SELECTIVITY FOR THE PRODUCTION OF C3-C4 ALCOHOLS AND CATALYST OBTAINED THEREBY

Номер: US20210016258A1
Автор: HAIDER Muhammad H.
Принадлежит: Sabic Global Technologies B.V.

Methods for producing cobalt/molybdenum catalysts having enhanced selectivity for the production of C-Calcohols. The catalyst production methods allow for the selective production of beta-phase catalysts over alpha-phase catalysts. The catalyst is a calcined composition comprising: β-CoxMoyOz, wherein x ranges from 0.5 to 2.0, y ranges from 0.5 to 2.0, and z ranges from 3.5 to 4.5, wherein said calcined composition is essentially free of catalytically-active amounts of beta-molybdenum carbide (β-Mo2 C), and wherein said calcined composition is essentially free of catalyst-promoting amounts of an alkaline metal promoter or alkaline earth metal promoter. 1. A calcined composition comprising:{'sub': x', 'y', 'z, 'β-CoMoO,'}{'sub': '2', 'wherein x ranges from 0.5 to 2.0, y ranges from 0.5 to 2.0, and z ranges from 3.5 to 4.5, wherein said calcined composition is essentially free of catalytically-active amounts of beta-molybdenum carbide (β-MoC), and'}wherein said calcined composition is essentially free of catalyst-promoting amounts of an alkaline metal promoter or alkaline earth metal promoter.2. The calcined composition of claim 1 , wherein the composition exhibits a synthesis gas conversion of at least 10%.3. The calcined composition of claim 1 , wherein the composition exhibits a cumulative C-Calcohols selectivity of at least 35%.4. A process for conversion of a synthesis gas stream into a product stream comprising C-Calcohols claim 1 , said process comprising:{'sub': 3', '4, 'exposing said synthesis gas stream to a calcined composition under conditions suitable to convert at least 10% of the synthesis gas stream with at least 35% selectivity for C-Calcohols,'}{'sub': x', 'y', 'z, 'wherein said calcined composition comprises β-CoMoO, with x ranging from 0.5 to 2.0, y ranging from 0.5 to 2.0, and z ranging from 3.5 to 4.5,'}{'sub': '2', 'wherein said calcined composition is essentially free of catalytically-active amounts of beta-molybdenum carbide (β-MoC), and'} ...

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17-01-2019 дата публикации

NON-PHTHALATE CATALYST SYSTEM AND ITS USE IN THE POLYMERIZATION OF OLEFINS

Номер: US20190016832A1
Принадлежит: Braskem America, Inc.

This invention relates to a non-phthalate catalyst system for olefin polymerization. The non-phthalate catalyst system comprises (a) a solid Ziegler-Natta catalyst composition comprising a transition metal, a Group 2 metal, and one or more halogens; and one or more internal electron donor compounds; and (b) one or more external electron donor compounds. 2. The non-phthalate catalyst system of claim 1 , wherein the transition metal is titanium claim 1 , the Group 2 metal is magnesium claim 1 , and the halogen is chloride.3. The non-phthalate catalyst system of claim 1 , wherein the catalyst system further comprises an organoaluminum cocatalyst selected from the group consisting of alkylaluminum claim 1 , alkylaluminum hydride claim 1 , alkylaluminum halide claim 1 , and alkylaluminum alkoxide.5. The non-phthalate catalyst system of claim 4 , wherein the cyclic diester compound is selected from the group consisting of diisobutyl cyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diethyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-n-propyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diisopropyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-n-butyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diisobutyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , dihexyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diheptyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , dioctyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-2-ethylhexyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , didecyl 3-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diethyl 4-methylcyclohexane-1 claim 4 ,3-dicarboxylate claim 4 , diisobutyl 4-methylcyclohexane-1 claim 4 ,3-dicarboxylate claim 4 , diethyl 4-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , di-n-propyl 4-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , diisopropyl 4-methylcyclohexane-1 claim 4 ,2-dicarboxylate claim 4 , ...

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16-01-2020 дата публикации

MIXED OXIDE CATALYST FOR THE OXIDATIVE COUPLING OF METHANE

Номер: US20200017424A1
Принадлежит: SABIC Global Technologies, B.V.

A mixed oxide catalyst for the oxidative coupling of methane can include a catalyst with the formula ABCDO, wherein: element A is selected from alkaline earth metals; elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals; the oxide of at least one of A, B, C, and D has basic properties; the oxide of at least one of A, B, C, and D has redox properties; and elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C selectivity of greater than or equal to 70%. Systems and methods can include contacting the catalyst with methane and oxygen and purifying or collecting C products. 1. A catalytic material for oxidative coupling of methane comprising:{'sub': a', 'b', 'c', 'd', 'x, 'claim-text': element A is selected from alkaline earth metals;', 'elements B and C are selected from rare earth metals, and wherein elements B and C are different rare earth metals;', 'the oxide of at least one of A, B, C, and D has basic properties;', 'the oxide of at least one of A, B, C, and D has redox properties; and', {'sub': '2', 'sup': '−', 'elements A, B, C, and D are selected to create a synergistic effect whereby the catalytic material provides a methane conversion of greater than or equal to 15% and a C selectivity of greater than or equal to 70%.'}], 'a catalyst with the formula ABCDO, wherein2. The catalytic material according to claim 1 , wherein: =1.0; claim 1 , claim 1 , and are each in the range from about 0.01 to about 10; and is a number selected to balance the oxidation state of D.3. The catalytic material according to claim 1 , wherein element A is selected from the group consisting of magnesium claim 1 , calcium claim 1 , strontium claim 1 , and barium.4. The catalytic material according to claim 1 , wherein elements B and C are selected from the group consisting of cerium claim 1 , ytterbium claim 1 , ...

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28-01-2016 дата публикации

EXHAUST GAS PURIFICATION CATALYST

Номер: US20160023192A1
Автор: MINAMI Keiichi
Принадлежит:

To provide an excellent exhaust gas purification catalyst with satisfactory NOselective reductive purification performance at lower temperature, and having a satisfactory NO formation rate. 1. A selective reduction catalyst for exhaust gas purification , represented by the formula: CoMn)TiO(where x in the molar ratio is a value greater than 0 and 0.2 or less).2. The selective reduction catalyst for exhaust gas purification according to claim 1 , wherein x is 0.1 or more and 0.2 or less.3. An exhaust gas purification method claim 1 , employing the selective reduction catalyst for exhaust gas purification according to .4. An exhaust gas purification method claim 2 , employing the selective reduction catalyst for exhaust gas purification according to . The present invention relates to an exhaust gas purification catalyst, and particularly to a NO-selective reduction catalyst.In recent years, worldwide restrictions on exhaust gas are becoming tighter from the viewpoint of environmental protection. As one measure, exhaust gas purification catalysts are being employed in internal combustion engines. In order to efficiently remove the hydrocarbons (hereunder abbreviated as “HC”), CO and nitrogen oxides (hereunder abbreviated as “NOx”) in exhaust gas, exhaust gas purification catalysts employ precious metals such as Pt, Pd and Rh as catalyst components.Vehicles using such exhaust gas purification catalysts, such as gasoline engine vehicles and diesel engine vehicles, employ various types of systems designed to increase both catalytic activity and fuel efficiency. For example, in order to increase fuel efficiency, combustion is carried out under lean air/fuel ratio (A/F) conditions (oxygen excess) during steady operation, and in order to increase catalytic activity, combustion is temporarily conducted under stoichiometric (theoretical air/fuel ratio, A/F=14.7) to rich (fuel excess) conditions.This is because conventionally known catalysts including precious metals such as Pt ...

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26-01-2017 дата публикации

METHODS OF MAKING AND USING LAYERED COBALT NANO-CATALYSTS

Номер: US20170021339A1
Принадлежит: The University of Notre Dame du Lac

A method of making LDO-Co nanoparticles is described herein. A method of using LDO-Co nanoparticles, particularly in the treatment of wastewater, is described herein. 1. A method of making layered double oxide (LDO) particles comprising:reacting a solution comprising cobalt with layered double hydroxide (LDH).2. The method of claim 1 , wherein the cobalt in the solution comprising cobalt is provided as cobalt nitrate (Co(NO)).3. The method of claim 2 , wherein the solution comprising cobalt further comprises at least one of urea (CO(NH)) claim 2 , aluminum nitrate (Al(NO)) claim 2 , and magnesium nitrate (Mg(NO)).4. The method of claim 3 , wherein the cobalt nitrate claim 3 , aluminum nitrate claim 3 , and magnesium nitrate are provided at a molar ratio of 2 magnesium nitrate:2 cobalt nitrate:1 aluminum nitrate.5. The method of claim 1 , wherein the reacting comprises placing the solution comprising cobalt in a sealed container with LDH.6. The method of claim 1 , wherein the reacting comprises heating the solution comprising cobalt and LDH to a temperature of 600° C.7. The method of claim 6 , wherein the heating the solution takes place under an inert atmosphere.8. The method of claim 7 , wherein the inert atmosphere is argon gas.9. The method of claim 5 , wherein the sealed container is a quartz tube.10. The method of claim 1 , wherein the reacting comprises thermal phase transformation.11. The method of claim 10 , wherein the thermal phase transformation takes place under a hydrogen gas atmosphere.12. The method of claim 11 , wherein the hydrogen gas atmosphere is introduced at a rate of 50 sccm.13. The method of claim 10 , wherein the thermal phase transformation is allowed to proceed for about 20 minutes.14. The method of claim 3 , wherein the molar percentage of cobalt relative to all metals (Θ) is between 0.1 and 67%.15. The method of claim 14 , wherein Θ is about 28%.16. A method of purifying water comprising:contacting layered double oxide (LDO) comprising ...

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28-01-2016 дата публикации

Calcination apparatus, process for producing oxide catalyst, and process for producing unsaturated acid or unsaturated nitrile

Номер: US20160023994A1
Принадлежит: Asahi Kasei Chemicals Corp

Disclosed is a calcination apparatus, including: a calcination tube having open ends at both terminals; a pair of hoods, each hood covering each open end of the calcination tube; and a pair of rings, each ring sealing a gap between the calcination tube and the hood, wherein the rings are directly or indirectly fixed on an outer surface of the calcination tube; a groove is provided along a circumferential direction of the ring at a contact surface side between the ring and the hood; a sealed chamber surrounded by the hood and the groove is formed; and both the calcination tube and the rings rotate in a circumferential direction of the calcination tube while keeping the hood in contact with both sides of the groove.

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25-01-2018 дата публикации

COATED ARTICLES HAVING HIGH KNOx/KSOx RATIOS FOR SELECTIVE CATALYTIC REDUCTION

Номер: US20180021724A1
Принадлежит:

Articles comprising a catalyst film comprising VOx, MoOor WO, and TiOdeposited on a substrate are disclosed. The articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases. Methods for producing such articles deposit a catalyst film on the substrate to form a coated substrate, which is then calcined. When used in an SCR process, the coated articles have enhanced activity for NOx conversion, reduced activity for SOx conversion, or both. Light-weight, coated articles having high catalyst loads can be fabricated at the same or reduced dimensions when compared with laminated articles, and increased kNOx/kSOx ratios are available even from coated articles having relatively thin catalyst films. The articles should have particular value for power plant operations, where coal and high-sulfur fuels are commonly used and controlling sulfur trioxide generation is critical. 1. An article comprising:(a) a substrate; and(b) a film deposited on the substrate;{'sub': 3', '3', '2, 'wherein the film comprises VOx, MoOor WO, and TiO, and the article catalyzes the conversion of nitrogen oxides in a gas containing nitrogen oxides.'}2. The article of claim 1 , wherein the film comprises 0.1 to 5 wt. % of VOx claim 1 , 0.5 to 20 wt. % of MoOor WO claim 1 , and 75 to 99.4 wt. % of TiO.3. The article of claim 1 , wherein the film comprises 0.5 to 2 wt. % of VOx claim 1 , 1 to 10 wt. % of MoOor WO claim 1 , and 88 to 98.5 wt. % of TiO.4. The article of claim 1 , wherein the film has a thickness of from about 20 μm to about 500 μm.5. The article of claim 1 , wherein the film has a thickness of from about 50 μm to about 150 μm.6. The article of claim 1 , wherein the substrates a monolith or a plate.7. The article of claim 1 , the article having less mass and at least one of: (a) enhanced activity for NOx conversion at a temperature between 350° C. and 400° C.; and (b) reduced activity for SOx conversion at a temperature between 380° C. and 430° C. claim 1 , compared ...

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24-01-2019 дата публикации

CATALYST-CONTAINING OXYGEN TRANSPORT MEMBRANE

Номер: US20190022596A1
Принадлежит:

A method is described of producing a catalyst-containing composite oxygen ion membrane and a catalyst-containing composite oxygen ion membrane in which a porous fuel oxidation layer and a dense separation layer and optionally, a porous surface exchange layer are formed on a porous support from mixtures of (LnA)CrBOand a doped zirconia. Adding certain catalyst metals into the fuel oxidation layer not only enhances the initial oxygen flux, but also reduces the degradation rate of the oxygen flux over long-term operation. One of the possible reasons for the improved flux and stability is that the addition of the catalyst metal reduces the chemical reaction between the (LnA)CrBOand the zirconia phases during membrane fabrication and operation, as indicated by the X-ray diffraction results. 1. A method of producing an oxygen ion composite membrane comprising:{'sub': 1−x', 'x', 'w', '1−y', 'y', '3−δ, 'forming a first layer on a porous support containing a first mixture of particles of (LnA)CrBO, doped zirconia, catalyst metal M, and pore formers, where Ln is La, Y, Pr, Ce or Sm, A is Ca or Sr, B is Fe, Mn, Co, Ni, Al, Ti or combinations thereof, w is from about 0.9 to about 1.0, x is from about 0.1 to about 0.3, y is from about 0.1 to about 0.7, and δ is a value that renders the composition charge neutral, catalyst metal M is a catalyst metal or an oxide, carbonate or nitrate of a catalyst metal, wherein said catalyst metal is selected from Ru, Pd, Pt, Rh, Ni, Co, or combinations thereof{'sub': 1−x', 'x', 'w', '1−y', 'y', '3−δ', '1−x', 'x', 'w', '1−y', 'y', '3−δ, 'the first mixture containing the (LnA)CrBO, the doped zirconia and the catalyst metal M such that when sintered, the first layer will contain from about 20 vol. % to about 70 vol. % of the (LnA)CrBO, from about 30 vol. % to about 80 vol. % of the doped zirconia, and optionally from about 0.1 vol. % to about 20 vol. % of the catalyst metal M, based on the volume percentage of the total solid mass;'}{'sub': 1−x', ...

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24-01-2019 дата публикации

Composite Material Containing A Bismuth-Molybdenum-Nickel Mixed Oxide Or A Bismuth-Molybdenum-Cobalt Mixed Oxide And SIO2

Номер: US20190022629A1
Принадлежит: CLARIANT INTERNATIONAL LTD

The present invention relates to a process for producing a composite material and also the composite material itself. The composite material contains a bismuth-molybdenum-nickel mixed oxide or a bismuth-molybdenum-cobalt mixed oxide and a specific SiO2 as pore former. The present invention also relates to the use of the composite material according to the invention for producing a washcoat suspension and also a process for producing a coated catalyst using the composite material according to the invention. Furthermore, the present invention also relates to a coated catalyst which has a catalytically active shell comprising the composite material according to the invention on a support body. The coated catalyst according to the invention is used for preparing [alpha],[beta]-unsaturated aldehydes from olefins.

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24-01-2019 дата публикации

CATALYST AND METHOD FOR PRODUCING CHLORINE BY MEANS OF GAS PHASE OXIDATION

Номер: US20190023568A1
Принадлежит:

The invention relates to known catalysts which contain cerium or other catalytically active components for producing chlorine by means of a catalytic gas phase oxidation of hydrogen chloride with oxygen. A catalyst material is described for producing chlorine by means of a catalytic gas phase oxidation of hydrogen chloride with oxygen, wherein the catalyst comprises at least oxide compounds of the cerium as active components and zirconium dioxide microparticles as the carrier components, and the catalyst is characterized by a particularly high yield, measured in kg/kgT·h, based on the mass of the catalyst. 117.-. (canceled)18. A catalyst material composed of a porous catalyst support and a catalytic coating for a process for thermocatalytic production of chlorine from hydrogen chloride and oxygen-containing gas , wherein the catalyst material at least comprises: at least one oxide compound of cerium as the catalytic coating and spherical zirconium dioxide microparticles as the support component.19. The catalyst material as claimed in claim 18 , wherein the catalyst has a bulk density of at least 700 kg/mmeasured in a DN100 graduated cylinder having a fill height of 250 mm.20. The catalyst material as claimed in claim 18 , wherein the catalyst support consists of zirconium dioxide to an extent of at least 90% by weight.21. The catalyst material as claimed in claim 18 , wherein the catalyst support consists of spherical particles claim 18 , wherein the principal dimension of the particles is on average from 0.1 mm to not more than 1.0 mm.22. The catalyst material as claimed in claim 21 , wherein the average particle size of the catalyst support is from 0.1 mm to not more than 1.0 mm claim 21 , and the Dand Dvalues of the particle size distribution deviate from the Dvalue by not more than 10% claim 21 , in particular measured by laser diffraction.23. The catalyst material as claimed in claim 18 , wherein the catalyst material is subjected to a high temperature ...

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24-01-2019 дата публикации

BISCARBODIIMIDES AND POLYCARBODIIMIDES AND METHOD FOR THEIR PREPARATION

Номер: US20190023652A1
Принадлежит:

The present disclosure describes a method of synthesizing carbodiimides comprising providing an alkylisothiourea, providing a thiophilic reagent to the reaction mixture and reacting under conditions sufficient to provide the carbodiimide, and wherein the carbodiimide is a polycarbodiimide or a biscarbodiimide. The present disclosure further describes methods for isolating the carbodiimides. The present disclosure additionally describes isolated carbodiimide compositions. 2. The method of synthesizing carbodiimides of claim 1 , wherein the reaction mixture further comprises a solvent selected from the list consisting of acetonitrile claim 1 , proprionitrile claim 1 , butyronirile claim 1 , isobutyronitrile claim 1 , valeronitrile claim 1 , hexanenitrile claim 1 , trimethylacetonitrile claim 1 , malonitrile claim 1 , succionitrile claim 1 , glutaronitrile claim 1 , adiponitrile claim 1 , 1 claim 1 ,5-dicyanopentane claim 1 , 1 claim 1 ,6-dicyanohexane claim 1 , N claim 1 ,N-dimethylformamide claim 1 , N claim 1 ,N-dimethylacetamide claim 1 , acetone claim 1 , methylene chloride claim 1 , 1 claim 1 ,2-dichloroethane claim 1 , chloroform claim 1 , carbontetrachloride claim 1 , 1 claim 1 ,4-dioxane claim 1 , benzene claim 1 , toluene claim 1 , xylenes claim 1 , pentane claim 1 , hexanes claim 1 , heptanes claim 1 , petroleum ether claim 1 , diethyl ether claim 1 , tetrahydrofuran claim 1 , 2-methyltetrahydrofuran claim 1 , methyl-t-butyl ether claim 1 , or a mixture thereof.3. The method of synthesizing carbodiimides of claim 1 , wherein the reaction mixture further comprises a base selected from the list consisting of acyclic or cyclic N claim 1 ,N claim 1 ,N-trisubstituted amine including claim 1 , but not limited to claim 1 , trimethylamine claim 1 , triethylamine claim 1 , N claim 1 ,N-diisopropylethyl amine claim 1 , N claim 1 ,N claim 1 ,N′ claim 1 ,N′-tetramethylethylenediamine or TMEDA claim 1 , N claim 1 ,N claim 1 ,N′ claim 1 ,N′-tetramethyl-1 claim 1 ,3- ...

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24-01-2019 дата публикации

METHODS FOR DIRECT EPOXIDATION OF PROPYLENE WITH OXYGEN

Номер: US20190023672A1
Принадлежит:

Methods to produce propylene oxide are described. One method can include providing a propene feedstream, an oxygen feed stream and, optionally, a hydrogen feed stream to a reaction zone, and maintaining, in a reaction zone during the reaction, at least 50 vol. % propene and 1 to 15 vol. % Oby gradually introducing a feed stream that includes the Oover the length of the catalytic bed or the length of the reaction zone and/or a feed stream that includes the Hover the length of the catalytic bed or the length of the reaction zone. 1. A method for direct epoxidation of propene , the method comprising reacting , in a reaction zone of a reactor , propene , oxygen gas (O) , and hydrogen gas (H) in the presence of a catalytic bed that includes a propene epoxidation catalyst to produce a product stream comprising propylene oxide , wherein:{'sub': 2', '2', '2', '2, 'at least 50 vol. % propene, 1 to 15 vol. % O, and 1 to 15 vol. % His maintained in the reaction zone during the reaction by (i) introducing the propene through a first reactant feed stream and (ii) gradually introducing the Oor the H, or both, over the length of the catalytic bed or the length of the reaction zone through a separate reactant feed stream(s), and'}a temperature of 150° C. to 300° C. and a pressure of 3 bar to 20 bar is maintained in the reaction zone during the reaction.2. The method of claim 1 , wherein 82 vol. % to 95 vol. % of propene claim 1 , 3 vol. % to 8 vol. % O claim 1 , and 2 vol. % to 10 vol. % His maintained in the reaction zone during the reaction.3. The method of claim 2 , wherein 88 vol. % to 92 vol. % of propene claim 2 , 4 vol. % to 6 vol. % O claim 2 , and 4 vol. % to 6 vol. % His maintained in the reaction zone during the reaction.4. The method of claim 1 , wherein the vol. % of propene and Oor H claim 1 , or both claim 1 , in the reaction zone has an explosive regime claim 1 , and wherein the gradual introduction of Oor H claim 1 , or both claim 1 , in the reaction zone is such ...

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23-01-2020 дата публикации

Plasmonic Nanoparticle Catalysts and Methods for Producing Long-Chain Hydrocarbon Molecules

Номер: US20200023345A1
Автор: Cong Wang, Haizhou Ren

A plasmonic nanoparticle catalyst for producing hydrocarbon molecules by light irradiation, which comprises at least one plasmonic provider and at least one catalytic property provider, wherein the plasmonic provider and the catalytic property provider are in contact with each other or have distance less than 200 nm, and molecular composition of the hydrocarbon molecules produced by light irradiation is temperature-dependent. And a method for producing hydrocarbon molecules by light irradiation utilizing the plasmonic nanoparticle catalyst.

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28-01-2021 дата публикации

BRANCHED MULTI-FUNCTIONAL MACROMONOMERS AND RELATED POLYMERS AND USES THEREOF

Номер: US20210023224A1
Принадлежит:

Disclosed are methods, compositions, reagents, systems, and kits to prepare and utilize branched multi-functional macromonomers, which contain a ring-opening metathesis polymerizable norbornene group, one or more reactive sites capable of undergoing click chemistry, and a terminal acyl group capable of undergoing a coupling reaction; branched multi-cargo macromonomers; and the corresponding polymers are disclosed herein. Various embodiments show that the macromonomers and polymers disclosed herein display unprecedented control of cargo loading of agents. These materials have the potential to be utilized for the treatment of diseases and conditions such as cancer and hypertension. 4127-. (canceled)130131-. (canceled)133. A polymer prepared by polymerizing a macromonomer of claim 2 , or a salt thereof claim 2 , in the presence of a metathesis catalyst.134141-. (canceled)142. A method of preparing a polymer comprising polymerizing a macromonomer of claim 2 , or a salt thereof claim 2 , in the presence of a metathesis catalyst.143. (canceled)144. A pharmaceutical composition comprising a polymer of and optionally a pharmaceutically acceptable excipient claim 133 , wherein at least one instance of M or M′ is a therapeutic agent claim 133 , a diagnostic agent claim 133 , or a prophylactic agent.145. A kit comprising:{'claim-ref': {'@idref': 'CLM-00133', 'claim 133'}, 'a polymer of ; and'}instructions for using the polymer.146. A method of delivering a therapeutic agent claim 133 , a diagnostic agent claim 133 , or a prophylactic agent to a subject comprising administering to the subject a polymer of claim 133 , wherein at least one instance of M or M′ is a therapeutic agent claim 133 , a diagnostic agent claim 133 , or a prophylactic agent.147. A method of delivering a therapeutic agent claim 133 , a diagnostic agent claim 133 , or a prophylactic agent to a cell comprising contacting the cell with a polymer of claim 133 , wherein at least one instance of M or M′ is a ...

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29-01-2015 дата публикации

Process For Production Of Acrylic Acid Or Its Derivatives From Hydroxypropionic Acid Or Its Derivatives

Номер: US20150031913A1
Принадлежит: Procter and Gamble Co

Processes for the catalytic dehydration of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propanoic acid, and acetic acid, are provided.

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31-01-2019 дата публикации

MONATOMIC METAL-DOPED FEW-LAYER MOLYBDENUM DISULFIDE ELECTROCATALYTIC MATERIAL, PREPARING METHOD THEREOF, AND METHOD FOR ELECTROCATALYTIC NITROGEN FIXATION

Номер: US20190030516A1
Принадлежит: CENTRAL CHINA NORMAL UNIVERSITY

The present invention provides a monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material, a preparing method thereof, and a method for electrocatalytic nitrogen fixation. The material has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale. A doping metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is dispersed in a form of single atoms. When the catalyst is used in electrochemical reduction of N, a Faradic efficiency in selective reduction of Ninto NH is 18% or above, and stability of the catalyst is better. 1. A monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material , which has a few-layer ultra-thin and irregular flake-like microstructure with a length and a width of nanometer scale , and wherein the doping metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is dispersed in a form of single atoms.2. The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1 , wherein the monatomic metal in the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material is for non-substitute doping claim 1 , and the few-layer ultra-thin and irregular flake has a length and width of 50-200 nm claim 1 , a thickness of 0.5-3 nm and 1-4 layers on average.3. The monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1 , wherein the monatomic metal comprises iron claim 1 , ruthenium claim 1 , platinum claim 1 , palladium claim 1 , and lanthanum claim 1 , and a doped amount is 0.2%-3%.4. A method for preparing the monatomic metal-doped few-layer molybdenum disulfide electrocatalytic material according to claim 1 , comprising the following steps:1) performing an ultrasonic process to flower-ball-shaped molybdenum disulfide to carry out an exfoliation, to obtain a few-layer molybdenum disulfide solution ...

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31-01-2019 дата публикации

Method for Producing Trans-1-Chloro-3,3,3-Trifluoropropene

Номер: US20190031583A1
Принадлежит: Central Glass Co Ltd

wherein X is 2 or 3; when X=2, Y is an integer of 1 to 4, Z is an integer of 0 to 3, and Y+Z=4; and, when X=3, Y is an integer of 1 to 5, Z is an integer of 0 to 4, and Y+Z=5; provided that the general formula (1) represents any halogenated C3 hydrocarbon compound other than trans-1-chloro-3,3,3-trifluoropropene.

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31-01-2019 дата публикации

Method for Producing Alpha, Alpha-Difluoroacetaldehyde

Номер: US20190031587A1
Принадлежит: Central Glass Co Ltd

Disclosed is an industrial method for efficient production of an α,α-difluoroaldehyde compound, which includes reaction of an α,α-difluoroacetate with hydrogen gas (H2) in the presence of a ruthenium catalyst and a base. By the adoption of specific reaction conditions (catalyst, base, pressure etc.), it is possible to produce the target α,α-difluoroaldehyde compound with a high conversion rate and high selectivity.

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31-01-2019 дата публикации

MACROPOROUS CATALYST FOR THE PREPARATION OF ALIPHATIC AMINES

Номер: US20190031596A1
Принадлежит: Rhodia Operations

A process for the preparation of aliphatic amines, comprises reacting an aliphatic alcohol with an aminating agent in the presence of a catalyst. The catalyst contains copper oxide on a support made of porous alumina, wherein the porous alumina has a volume, corresponding to pores greater than 500 Å in diameter, of from 10 ml/100 g to 95 ml/100 g. 2. The process according to claim 1 , wherein the porous alumina has a volume claim 1 , corresponding to pores greater than 500 Å in diameter claim 1 , of from 20 ml/100 g to 95 ml/100 g.3. The process according to claim 1 , wherein the porous alumina has a volume claim 1 , corresponding to pores greater than 500 Å in diameter claim 1 , of from 30 ml/100 g to 95 ml/100 g.4. The process according to claim 1 , wherein the porous alumina has a specific surface area of from 10 m/g to 280 m/g.5. The process according to claim 1 , wherein the porous alumina has a specific surface area of from 50 m/g to 280 m/g.6. The process according to claim 1 , wherein the catalyst further comprises a compound of at least one element selected from Fe claim 1 , Co claim 1 , Zn claim 1 , Ni claim 1 , Cr claim 1 , Mn claim 1 , Mg claim 1 , Ba and rare earth metals.7. The process according to claim 1 , wherein the catalyst comprises from 5 wt % to 50 wt % of copper oxide claim 1 , weight percentage based on the total weight of the catalyst.9. The process according to claim 1 , wherein the aliphatic alcohol and the aminating agent are mixed together with a flow of hydrogen and the mixture is continuously introduced into a reaction zone claim 1 , wherein the molar ratio of the aliphatic alcohol/the aminating agent/the hydrogen is in the range of from 1:1:5 to 1:2:20.10. The process according to claim 9 , wherein the molar ratio of the aliphatic alcohol/the aminating agent/the hydrogen is in the range of from 1:1:5 to 1:1.2:15.11. The process according to claim 1 , wherein the reaction is carried out at a temperature of from 150° C. to 350° C.12. ...

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30-01-2020 дата публикации

MULTI-LAYER NITROGEN OXIDE STORAGE CATALYST WITH MANGANESE

Номер: US20200032687A1
Принадлежит: UMICORE AG & CO. KG

The Invention relates to a nitrogen oxide storage catalyst composed of at least two catalytically-active washcoat layers on a support body, wherein a lower washcoat layer A comprises cerium oxide, an alkaline earth metal compound and/or an alkali compound, platinum and palladium, and manganese oxide, and an upper washcoat layer B disposed on the washcoat layer A comprises cerium oxide, platinum and palladium and does not contain any alkali and alkaline-earth compounds, and to a method for converting NOin exhaust gases from motor vehicles which are operated with lean-burn engines. 1. Nitrogen oxide storage catalyst composed of at least two catalytically-active washcoat layers on a support body , whereina lower washcoat layer A contains cerium oxide, an alkaline earth compound and/or an alkali compound, platinum and palladium, as well as manganese oxide; andan upper washcoat layer B arranged above washcoat layer A contains cerium oxide, as well as platinum and palladium, and is free of alkali compounds and alkaline earth compounds.2. Nitrogen oxide storage catalyst according to claim 1 , characterized in that washcoat layer A contains cerium oxide in a quantity of 110 to 160 g/L.3. Nitrogen oxide storage catalyst according to claim 1 , characterized in that washcoat layer B contains cerium oxide in a quantity of 22 to 120 g/L.4. Nitrogen oxide storage catalyst according to claim 1 , characterized in that the alkaline earth compound in washcoat layer A is an oxide claim 1 , carbonate claim 1 , and/or hydroxide of magnesium claim 1 , strontium claim 1 , and/or barium.5. Nitrogen oxide storage catalyst according to one claim 1 , characterized in that the alkaline earth compound in washcoat layer A is magnesium oxide claim 1 , barium oxide claim 1 , and/or strontium oxide.6. Nitrogen oxide storage catalyst according to claim 1 , characterized in that the alkali compound in washcoat layer A is an oxide claim 1 , carbonate claim 1 , and/or hydroxide of lithium claim 1 , ...

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01-05-2014 дата публикации

Surface-treated metal and method for producing same

Номер: US20140120320A1
Принадлежит: Individual

This surface-treated metal includes a metal, and a coated material that is formed on a surface of the metal, in which an outermost layer of the coated material is a photocatalytic film that contains particles showing photocatalytic activity and an organic-inorganic composite resin, a volume ratio of the particles showing photocatalytic activity to the photocatalytic film is in a range from 0.5 vol % to 50 vol %, the organic-inorganic composite resin contains a siloxane bond and at least one group selected from the group consisting of an aryl group, a carboxyl group, an amino group, a hydroxyl group, and an alkyl group having 1 to 12 carbon atoms, the coated material has concaves on a surface thereof on the outermost layer side, an area of the outermost layer is 50% to 98% of an area of a surface of the metal when the coated material is seen in a plan view, and a surface area of the outermost layer is 101% to 5000% of the area of the surface of the metal.

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11-02-2016 дата публикации

CATALYST COMPOSITION

Номер: US20160038921A1
Принадлежит:

A method for producing an exhaust gas purifying catalyst including a composite oxide represented by the following general formula (3), the method including a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200° C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd; a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and a secondary baking step of baking the precursor composition at 800 to 1400° C., AO.x(BFePdO) (3). 111.-. (canceled)12. A method for producing an exhaust gas purifying catalyst comprising a composite oxide represented by the following general formula (3) , the method comprising:a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200° C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd;a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and {'br': None, 'sub': 2-y-z', 'y', 'Z', '3-α, 'AO.x(BFePdO)\u2003\u2003(3)'}, 'a secondary baking step of baking the precursor composition at 800 to 1400° C.,'}wherein A represents an element selected from monovalent elements, divalent ...

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08-02-2018 дата публикации

METHOD FOR PRODUCING COMPOSITE OXIDE AND COMPOSITE OXIDE CATALYST

Номер: US20180036714A1
Принадлежит: SANTOKU CORPORATION

Provided are a method for producing a composite oxide and the composite oxide. The method includes steps of: (a) preparing a Ce aqueous solution not less than 80 mol % of which Ce ions are tetravalent, and a Zr aqueous solution; (b1) mixing the Zr aqueous solution and a portion of the Ce aqueous solution to prepare a mixed aqueous solution (X1); (c1) hydrothermally processing the solution (X1); (b2) adding the remainder of the Ce aqueous solution of step (a) to a colloidal solution (Y1) of a composite salt obtained from step (c1) to prepare a colloidal solution (Y2) of a composite salt; (c2) hydrothermally processing the solution (Y2); (d) mixing a colloidal solution (Y3) of a composite salt obtained from step (c2) with an alkaline solution and a surfactant to prepare a precipitate; and (e) calcining the precipitate. 1. A composite oxide obtained by a method comprising the steps of:(a) preparing at least a cerium aqueous solution 80 to 100 mol % of which cerium ions are tetravalent, and a zirconium aqueous solution containing zirconium ions;(b1) mixing said zirconium aqueous solution and a portion of said cerium aqueous solution prepared in step (a) to prepare a mixed aqueous solution (X1);(c1) hydrothermally processing said mixed aqueous solution (X1);(b2) adding a remainder of said cerium aqueous solution prepared in step (a) to a colloidal solution (Y1) of a composite salt obtained by said hydrothermal processing in step (c1) to prepare a colloidal solution (Y2) of a composite salt;(c2) hydrothermally processing said colloidal solution (Y2) of a composite salt obtained from step (b2) ;(d) mixing a colloidal solution (Y3) of a composite salt obtained by said hydrothermal processing in step (c2) with an alkaline solution and a surfactant to prepare a precipitate; and(e) calcining said precipitate,wherein the composite oxide comprises Ce, Zr, Pr, and oxygen, andwherein the content of Zr is not less than 20 mol% and not more than 50 mol %, and the content of Pr is ...

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08-02-2018 дата публикации

Exhaust gas purifying catalyst and method for producing the same

Номер: US20180036715A1
Автор: Takaaki Kanazawa
Принадлежит: Toyota Motor Corp

Provided is an exhaust gas purifying catalyst with an excellent effect of suppressing deterioration due to aggregation of a noble metal catalyst that would occur during endurance at a high temperature. The exhaust gas purifying catalyst includes a porous support and a noble metal catalyst carried on the porous support. The porous support contains particles of an alumina-ceria-zirconia composite oxide, and the porous support has the following physical property values after subjected to baking at 900° C. for 5 hours: a pore diameter of the particles in the range of 2 to 20 nm, a specific surface area of the particles in the range of 75 to 115 m 2 /g, a crystallite size of a ceria-zirconia composite oxide that is contained in the particles in the range of 4 to 6 nm, and a bulk density of the particles in the range of 0.5 to 0.9 cm 3 /g.

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07-02-2019 дата публикации

BRANCHED MULTI-FUNCTIONAL MACROMONOMERS AND USES THEREOF

Номер: US20190038751A1
Принадлежит:

Disclosed are methods, compositions, reagents, systems, and kits to prepare and utilize branched multi-functional macromonomers, which contain a ring-opening metathesis polymerizable norbornene group, one or more reactive sites capable of undergoing click chemistry, and a terminal acyl group capable of undergoing a coupling reaction; branched multi-cargo macromonomers; and the corresponding polymers are disclosed herein. Various embodiments show that the macromonomers and polymers disclosed herein display unprecedented control of cargo loading of agents. These materials have the potential to be utilized for the treatment of diseases and conditions such as cancer and hypertension. 450-. (canceled)52109-. (canceled)110. The macromonomer of claim 1 , or a salt thereof claim 1 , wherein at least two instances of M that are agents are different from each other.111114-. (canceled)115. The macromonomer of claim 1 , or a salt thereof claim 1 , wherein at least one instance of m is 2 claim 1 , 3 claim 1 , 4 claim 1 , or 5.116127-. (canceled)130131-. (canceled)133. A polymer prepared by polymerizing a macromonomer of claim 1 , or a salt thereof claim 1 , in the presence of a metathesis catalyst.134. The polymer of claim 133 , wherein the polymer is prepared by polymerizing a first instance of the macromonomer claim 133 , or a salt thereof claim 133 , and a second instance of the macromonomer claim 133 , or a salt thereof claim 133 , in the presence of a metathesis catalyst claim 133 , wherein at least one instance of M of the first instance of the macromonomer is different from at least one instance of M of the second instance of the macromonomer.135141-. (canceled)142. A method of preparing a polymer of comprising polymerizing a macromonomer of claim 133 , or a salt thereof claim 133 , in the presence of a metathesis catalyst.143. The method of comprising polymerizing a first instance of the macromonomer claim 142 , or a salt thereof claim 142 , and a second instance of the ...

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24-02-2022 дата публикации

ALKANE OXIDATIVE DEHYDROGENATION AND/OR ALKENE OXIDATION

Номер: US20220055972A1
Принадлежит:

The invention relates to a process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms, wherein the alkane and/or alkene is contacted with oxygen in the presence of a catalyst comprising a mixed metal oxide and one or more diluents selected from the group consisting of carbon dioxide, carbon monoxide and steam, and wherein the conversion of the alkane and/or alkene is at least 40%. 1. A process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms , wherein the alkane and/or alkene is contacted with oxygen in the presence of a catalyst comprising a mixed metal oxide and one or more diluents selected from the group consisting of carbon dioxide , carbon monoxide and steam , and wherein the conversion of the alkane and/or alkene is at least 40%.2. The process according to claim 1 , wherein the conversion of the alkane and/or alkene is of from 45% to 70%.3. The process according to claim 1 , wherein the diluent comprises carbon dioxide.4. The process according to claim 1 , wherein the diluent comprises from 1 to 100 vol. % of carbon dioxide.5. The process according to claim 1 , wherein the alkane is ethane or propane and the alkene is ethylene or propylene.6. The process according to claim 1 , wherein the catalyst is a mixed metal oxide catalyst containing molybdenum claim 1 , vanadium claim 1 , niobium and optionally tellurium. The present invention relates to a process for alkane oxidative dehydrogenation and/or alkene oxidation.It is known to oxidatively dehydrogenate alkanes, such as alkanes containing 2 to 6 carbon atoms, for example ethane or propane resulting in ethylene and propylene, respectively, in an oxidative dehydrogenation (oxydehydrogenation; ODH) process. Examples of alkane ODH processes, including catalysts and other process conditions, are for example disclosed in U.S. Pat. No ...

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07-02-2019 дата публикации

CERIA-ZIRCONIA-BASED COMPOSITE OXIDE OXYGEN STORAGE MATERIAL, EXHAUST GAS CLEANING CATALYST, AND HONEYCOMB STRUCTURE FOR EXHAUST GAS CLEANING

Номер: US20190039049A1
Принадлежит: NIPPON DENKO CO., LTD.

A ceria-zirconia-based composite oxide oxygen storage material with a fast oxygen storage rate having an OSC ability enabling fast response to changes in exhaust gas which does not greatly fluctuate in composition, but varies at a fast rate near the stoichiometric air-fuel ratio, an exhaust gas purification catalyst, and a honeycomb structure for exhaust gas purification are provided. 1. A ceria-zirconia-based composite oxide oxygen storage material , which oxygen storage material has a molar ratio of cerium and zirconium , by cerium/(cerium+zirconium) , of 0.33 to 0.90 , has an ion conductivity measured by an AC impedance method of 1×10S/cm or more at 400° C. , and contains metal ions M of a rare earth element with a coordination number of over 7.0 in an amount of 0.5 mol % to 15 mol % with respect to the total amount of cations.2. The oxygen storage material according to claim 1 , wherein said metal ions M are one or more types selected from Sm claim 1 , Eu claim 1 , Pr claim 1 , Gd claim 1 , and Dy.3. The oxygen storage material according to claim 1 , wherein an oxygen storage capacity amount (OSC amount) is 300 μmol-O/g or more.4. The oxygen storage material according to claim 1 , containing said metal ions M in an amount of 2 mol % to 6 mol % with respect to the total amount of cations.5. The oxygen storage material according to claim 1 , wherein said ceria-zirconia-based composite oxide contains metal ions having ion radii larger than Ce ions.6. An exhaust gas purification catalyst comprising an oxygen storage material according to supporting a precious metal.7. A honeycomb structure for exhaust gas purification comprised of an exhaust gas purification catalyst according to covering an inside wall of a metal or ceramic honeycomb.8. The oxygen storage material according to claim 2 , wherein an oxygen storage capacity amount (OSC amount) is 300 μmol-O/g or more.9. The oxygen storage material according to claim 2 , containing said metal ions M in an amount of 2 ...

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07-02-2019 дата публикации

AGGLOMERATED ODH CATALYST

Номер: US20190039050A1
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of NbO. 2. The agglomerated catalyst according to claim 1 , having a cumulative surface area less than 10 m/g as measured by BET and comprising less than 35 wt % of an non-antagonistic binder.3. The agglomerated catalyst according to claim 2 , having a cumulative pore volume from 0.020 to 0.20 cm3/g.4. The agglomerated catalyst according to claim 2 , having a pore size distribution less than 40% having pore width size less than 200 Angstroms.5. The agglomerated catalyst according to claim 2 , having a percent pore area distribution less than 30% and corresponding percentage of pore volume less than 10%.6. The agglomerated catalyst according to in the shape of a sphere claim 2 , rod claim 2 , ring claim 2 , or a saddle having a size from about 1.3 mm to 5 mm.7. The agglomerated catalyst according to claim 6 , wherein the NbOhydrate is acidified.8. The agglomerated catalyst according to claim 6 , wherein the NbOhydrate is treated with a base.9. The agglomerated catalyst according to claim 8 , in the shape of rods having an aspect ratio from 1 to 5/1.3 having a crush strength up to 110 N/mm.10. The agglomerated catalyst according to claim 8 , in the shape of spheres having a crush strength up to 110 N/mm.11. The agglomerated catalyst according to claim 1 , wherein the NbOhydrate is present in an amount less than 15 wt %.12. The agglomerated catalyst according to claim 1 , wherein the NbOhydrate is present in an amount greater than 15 wt %.19. The process according to claim 18 , wherein in step v) the particles are calcined at a temperature of less than 350° C.20. The process according 19 claim 18 , further comprising spheroidizing rod shaped agglomerated particles at a temperature up to 300° C. and then further calcining the resulting spheres at temperatures up to 600° C.21. ...

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24-02-2022 дата публикации

Selective catalyst for hydrogenolysis of ethyl-aromatics by conserving methyl-aromatics

Номер: US20220056350A1
Принадлежит: IFP Energies Nouvelles IFPEN

The present invention relates to a hydrogenolysis process wherein a hydrocarbon-based feedstock comprising aromatic compounds having at least 8 carbon atoms is treated by means of a hydrogen feed and in the presence of a catalyst, in order to convert C2+ alkyl chains of said aromatic compounds into methyl groups and to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds, wherein the catalyst comprises a support, comprising at least one refractory oxide, and an active phase comprising nickel and molybdenum, wherein: the nickel content being between 0.1 and 25% by weight relative to the total weight of the catalyst; the molybdenum content being between 0.1 and 20% by weight relative to the total weight of the catalyst; and the catalyst comprising a molar ratio of molybdenum to nickel of between 0.2 and 0.9. The present invention also relates to said catalyst and to the process for preparing said catalyst.

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06-02-2020 дата публикации

OXIDATIVE DEHYDROGENATION CATALYST COMPOSITIONS

Номер: US20200038843A1
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: 1. A catalyst composition comprising an oxidative dehydrogenation catalyst comprising a mixed metal oxide having the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.25', '0.10-0.20', 'c', 'd, 'MoVTeNbAlO'} c is from 0 to 2.0,', 'd is a number to satisfy the valence of the oxide, and', 'the composition is at least 40 wt. % amorphous as measured by XRD., 'wherein2. The catalyst composition of claim 1 , wherein the composition is from 60 wt. % to 80 wt. % amorphous.3. The catalyst composition of claim 1 , wherein the composition further comprises an adjuvant.4. The catalyst composition of claim 3 , wherein the adjuvant comprises about 30 wt. % to about 90 wt. % of the catalyst composition.5. The catalyst composition of claim 4 , wherein the oxidative dehydrogenation catalyst comprises about 10 wt. % to about 70 wt. % of the catalyst composition.6. The catalyst composition of claim 1 , wherein the mixed metal oxide has the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.17', '0.10-0.20', 'c', 'd, 'MoVTeNbAlO'}wherein c is 0.01 to 2.0.7. The catalyst composition of claim 3 , wherein the adjuvant comprises an alumina.8. The catalyst composition of claim 7 , wherein the alumina comprises a boehmite.9. The catalyst composition of claim 1 , wherein the molar ratio of molybdenum to vanadium in the catalyst composition is from 1:0.12 to 1:0.49 claim 1 , the molar ratio of molybdenum to tellurium in the catalyst composition is from 1:0.05 to 1:0.25 claim 1 , the molar ratio of molybdenum to niobium in the catalyst composition is from 1:0.10 to 1:0.20 claim 1 , and the molar ratio of molybdenum to aluminum in the catalyst composition is from 0.01 to 2.0 claim 1 , as determined by PIXE.10. The catalyst composition of claim 1 , wherein the catalyst composition ...

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06-02-2020 дата публикации

CATALYST COMPOSITION AND CATALYTIC PROCESSES FOR PRODUCING LIQUID HYDROCARBONS

Номер: US20200038844A1

The invention relates to potassium-promoted, Fe(FeAl)O[0.3≤y≤0.7] silica-containing extrudates, processes for the preparation of the extrudates with the aid of colloidal silica, and the use of the extrudates to catalyze processes for producing liquid hydrocarbons. 1) Potassium-promoted Fe(FeAl)O[0.3 Подробнее

18-02-2021 дата публикации

METHOD FOR PRODUCING METAL COMPLEX CATALYST, AND METAL COMPLEX CATALYST PRODUCED BY SAME

Номер: US20210046469A1
Принадлежит:

A method for preparing a metal complex catalyst by (A) obtaining a precipitate by bringing a metal precursor solution comprising a zinc (Zn) precursor, a ferrite (Fe) precursor, and water into contact with a basic aqueous solution; (B) obtaining a zinc ferrite catalyst by filtering and calcining the precipitate; and (C) supporting an acid onto the zinc ferrite catalyst, and a metal complex catalyst prepared thereby. 1. A method for preparing a metal complex catalyst , the method comprising:(A) obtaining a precipitate by bringing a metal precursor solution comprising a zinc (Zn) precursor, a ferrite (Fe) precursor, and water into contact with a basic aqueous solution;(B) obtaining a zinc ferrite catalyst by filtering and calcining the precipitate; and(C) supporting an acid onto the zinc ferrite catalyst.2. The method of claim 1 , wherein in Step (A) claim 1 , a content of the zinc precursor is 0.1 wt % to 5 wt % based on weight of water of the metal precursor solution.3. The method of claim 1 , wherein in Step (A) claim 1 , a content of the ferrite precursor is 1 wt % to 10 wt % based on weight of water of the metal precursor solution.4. The method of claim 1 , wherein in Step (C) claim 1 , the acid is phosphoric acid.5. The method of claim 1 , wherein in Step (C) claim 1 , a content of the acid is 0.05 wt % to 0.2 wt % based on weight of the zinc ferrite catalyst.6. The method of claim 1 , wherein the zinc precursor and the ferrite precursor are each independently one or more selected from the group consisting of a nitrate claim 1 , an ammonium salt claim 1 , a sulfate claim 1 , and a chloride claim 1 , and a hydrate thereof.7. The method of claim 1 , wherein the zinc precursor is zinc chloride (ZnCl).8. The method of claim 1 , wherein the ferrite precursor is ferric chloride hydrate (FeCl.6HO).9. The method of claim 1 , wherein a pH of the basic aqueous solution is 7 to 11.10. The method of claim 1 , wherein the basic aqueous solution is one or more selected from ...

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18-02-2016 дата публикации

CATALYST STRUCTURE FOR EXHAUST GAS TREATMENT

Номер: US20160045896A1
Принадлежит:

Provided is a new catalyst structure for exhaust gas treatment including an upper catalyst layer and a lower catalyst layer, in which the catalyst structure can sufficiently exhibit functions as a three way catalyst while maintaining gas diffusibility. Proposed is a catalyst structure including a substrate, an upper catalyst layer, and a lower catalyst layer, the catalyst structure having a first peak or a second peak at a pore volume diameter of 10 nm to 50 nm and a pore volume diameter of 50 nm to 100 nm, respectively, in the logarithmic differential pore volume distribution analyzed by a mercury intrusion porosimeter. 1. A catalyst structure comprising a substrate , an upper catalyst layer , and a lower catalyst layer , the catalyst structure having a first peak or a second peak at a pore volume diameter of 10 nm to 50 nm and a pore volume diameter of 50 nm to 100 nm , respectively , in the logarithmic differential pore volume distribution analyzed by a mercury intrusion porosimeter.2. The catalyst structure according to claim 1 , wherein the difference between the pore volume diameter of the first peak and the pore volume diameter of the second peak is 20 nm to 60 nm.3. The catalyst structure according to claim 1 , wherein the upper catalyst layer and the lower catalyst layer both contain an inorganic porous material claim 1 , and the inorganic porous material contained in the upper catalyst layer has a different composition or a different pore distribution than that of the inorganic porous material contained in the lower catalyst layer.4. The catalyst structure according to claim 1 , wherein the upper catalyst layer is a porous layer containing an inorganic porous material formed from an oxide having an apatite type crystal structure.5. The catalyst structure according to claim 1 , wherein the lower catalyst layer is a porous layer containing an inorganic porous material having an oxygen storage/release capacity function (OSC function).6. The catalyst structure ...

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01-05-2014 дата публикации

Integrated Process for the Production of Acrylic Acids and Acrylates

Номер: US20140121403A1
Принадлежит: Celanese International Corp

A process for producing an acrylate product from methanol and acetic acid, in which, in a reaction zone A, the methanol is partially oxidized to formaldehyde in a catalyzed gas phase reaction, the product gas mixture A obtained and an acetic acid source are combined to form a reaction gas input mixture B which comprises acetic acid in excess over formaldehyde, and the formaldehyde in reaction gas input mixture B is aldol-condensed to acrylic acid in the presence of a catalyst in a reaction zone B to form an acrylic acid-containing product gas mixture B from which an acrylate product stream may be separated. Suitable aldol condensation catalysts include vanadium-bismuth, vanadium-titanium-bismuth, vanadium-bismuth-tungsten, vanadium-titanium-tungsten, vanadium-titanium and vanadium-tungsten.

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