КАТАЛИЗАТОР НА ОСНОВЕ МЕДИ, НАНЕСЕННЫЙ НА МЕЗОПОРИСТЫЙ УГОЛЬ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

Данное изобретение относится к нанесенному на мезопористый уголь катализатору на основе меди, к способу его получения и применению в каталитическом дегидрировании соединения с алкильной цепью C-Cдля превращения соединения с алкильной цепью C-Cв соединение с соответствующей алкенильной цепью. Катализатор включает мезопористый уголь, медный компонент и вспомогательный элемент, нанесенные на указанный мезопористый уголь. Один или несколько вспомогательных элементов (в виде оксидов) выбирают из группы, состоящей из VO, LiO, MgO, СаО, GaO, ZnO, AlО, CeO, LaO, SnOи KO. Количество медного компонента (в расчете на CuO) составляет 2-20 мас.% в расчете на общую массу катализатора. Количество вспомогательного элемента (в расчете на указанный оксид) составляет 0-3 мас.%. Количество мезопористого угля составляет 77.1-98 мас.% в расчете на общую массу катализатора. Способ получения катализатора включает: (1) стадию контактирования предшественника медного компонента, предшественника вспомогательного элемента ...

Способ переработки тяжелой нефтяной фракции

Сущность: тяжелую нефтяную фракцию, содержащую менее 3 мас.% асфальтеновых компонентов вместе с водородсодержащим газом пропускают через реакционную зону, содержащую некислотиый катализатор при температуре 400-550°С, парциальном давлении водорода 10-60 бар. 13 табл.

METALLOXID-VERBUNDWERKSTOFFE UND DEREN BENUTZUNG ZUR VERNICHTUNG VON UNERWÜNSCHTEN FLUIDEN STOFFEN

VERFAHREN ZUR HERSTELLUNG VON ALKYLHALOGENSILANEN

METHOD FOR MAKING ALKYLHALOSILANES

PROCEDURE FOR THE CONTINUOUS PRODUCTION OF A PERFLUORALKYLIODID TELOMERS

PROCEDURE AND CATALYST WITH AN ALKALI METAL AS ADDITIVE FOR THE DIRECT SYNTHESIS OF DIMETHYLDICHLORSILAN.

PROCEDURE AND CATALYST WITH CESIUM AS ADDITIVE FOR THE DIRECT SYNTHESIS OF DIMETHYLDICHLORSILAN.

Hydrocarbon-reforming catalyst and process for producing synthesis gas using the same

ALKYLHALOSILANES

MONOLITHIC-SUPPORTED CATALYST OR GROUPS OF MONOLITHIC-SUPPORTED CATALYSTS FOR THE PURIFICATION OF WASTE GASES OF INTERNAL COMBUSTION ENGINES

PROCESS FOR PREPARING CATALYSTS FOR USE IN ORGANIC COMPOUND TRANSFORMATION REACTIONS

Procédé de préparation d'un catalyseur renfermant au moins un support, au moins un métal du groupe VIII de la classification périodique des éléments et au moin s un élément additionnel M choisi dans le groupe constitué par le germanium, l'étain, le plomb, le rhénium, le gallium, l'indium et le thallium, procédé dans lequel ledit métal M est introduit dans un solvant aqueux sous la forme d'au moins un composé organométallique comprenant au moins une liaison carbone-M.

Method for preparing two-component oxide nanobelt

The invention relates to a method for preparing a two-component oxide nanobelt. The method comprising the following steps of (1) preparing electrospinnable sol; 2) adjusting electrospinning parameters; and (3) drying and calcining the electrospun product. The two-component oxide is copper oxide and indium oxide, the width of the nanobelt is 300-400nm and the thickness of the nanobelt is 10-20nm. The preparation method is simple and easily grasped and controlled and can be applied in preparing other two-component oxides or other two-component non-oxides. The two-component oxide nanobelt provided by the invention has good photocatalytic activity and has a better degrading effect on rhodamine B under the action of simulated sunlight and the degradation rate within three hours can reach 44.9%, which is 2-5 times of that of a single oxide; the preparation method has the advantages of simple steps and low cost.

Method for synthesizing CoGa alloy high-index crystal plane

Catalyst for modified fossil fuels

PROCEDE ET CATALYSEUR AVEC UN ALCALIN COMME ADDITIF POUR LA SYNTHESE DIRECTE DU DIMETHYLDICHLOROSILANE

LA PRESENTE INVENTION CONCERNE UN PROCEDE DE FABRICATION DE DIMETHYLDICHLOROSILANE PAR REACTION DE CHLORURE DE METHYLE SUR UNE MASSE DE CONTACT SOLIDE FORMEE DE SILICIUM ET D'UN CATALYSEUR COMPORTANT DU CUIVRE OU UN COMPOSE DU CUIVRE, LEDIT PROCEDE ETANT CARACTERISE EN CE QUE LE CATALYSEUR COMPORTE EN OUTRE ENTRE ENVIRON 30 ET 1000PPM (CALCULES EN ETAIN ETOU ANTIMOINE METAL) D'UN METAL CHOISI PARMI L'ETAIN ET L'ANTIMOINE, OU D'UN COMPOSE DE L'ETAIN ET DE L'ANTIMOINE ENTRE ENVIRON 0,05 ET 2 (CALCULES EN ALCALIN METAL) D'AU MOINS UN METAL ALCALIN CHOISI PARMI LE LITHIUM, LE SODIUM, LE POTASSIUM ET LE RUBIDIUM OU D'UN COMPOSE DE METAL ALCALIN, PAR RAPPORT A LA MASSE DE CONTACT SOLIDE SILICIUM ET CATALYSEUR. PAR LA MISE EN OEUVRE DU PROCEDE DE L'INVENTION ON AMELIORE LA PRODUCTIVITE, LE TAUX DE TRANSFORMATION MAXIMUM EN SILICIUM ET LA SELECTIVITE EN DIMETHYLDICHLOROSILANE.

PROCESS OF PRODUCTION Of ALCOHOLS BY ESTER HYDROGENOLYSE Of CARBOXYLIC ACIDS IN THE PRESENCE OF a CATALYST CONTAINING OF NICKEL AND TIN, GERMANIUM OR LEAD

PROCESS OF PRODUCTION Of ALCOHOLS BY ESTER HYDROGENOLYSE Of CARBOXYLIC ACIDS IN THE PRESENCE OF a CATALYST CONTAINING OF NICKEL AND TIN, GERMANIUM OR LEAD

PROCESS AND CATALYST WITH CESIUM LIKE ADDITIVE FOR THE DIRECT SYNTHESIS OF THE DIMETHYLDICHLOROSILANE

LA PRESENTE INVENTION CONCERNE UN PROCEDE DE FABRICATION DE DIMETHYLDICHLOROSILANE PAR REACTION DE CHLORURE DE METHYLE SUR UNE MASSE DE CONTACT SOLIDE FORMEE DE SILICIUM ET D'UN CATALYSEUR COMPORTANT DU CUIVRE OU UN COMPOSE DU CUIVRE, LEDIT PROCEDE ETANT CARACTERISE EN CE QUE LE CATALYSEUR COMPORTE EN OUTRE ENTRE ENVIRON 30 ET 1000PPM (CALCULES EN ETAIN ETOU ANTIMOINE METAL) D'UN METAL CHOISI PARMI L'ETAIN ET L'ANTIMOINE, OU D'UN COMPOSE DE L'ETAIN ET DE L'ANTIMOINE ET ENTRE ENVIRON 0,05 ET 4 (CALCULES EN CESIUM METAL) DE CESIUM OU D'UN COMPOSE DU CESIUM PAR RAPPORT A LA MASSE DE CONTACT SOLIDE SILICIUM ET CATALYSEUR. PAR LA MISE EN OEUVRE DU PROCEDE DE L'INVENTION ON AMELIORE LA PRODUCTIVITE, LE TAUX DE TRANSFORMATION MAXIMUM EN SILICIUM ET LA SELECTIVITE EN DIMETHYLDICHLOROSILANE. THE PRESENT INVENTION CONCERNS A PROCESS FOR THE MANUFACTURING OF DIMETHYLDICHLOROSILANE BY REACTION OF METHYL CHLORIDE ON A SOLID CONTACT MASS FORMED OF SILICON AND OF A CATALYST CONTAINING COPPER OR A COPPER COMPOUND, THIS PROCESS BEING CHARACTERIZED AS THE COMPOUND AS THE COMPOUND. IN ADDITION BETWEEN APPROXIMATELY 30 AND 1000PPM (CALCULATED IN TIN AND OR ANTIMONY METAL) OF A METAL CHOSEN FROM TIN AND ANTIMONY, OR A COMPOUND OF TIN AND ANTIMONY, AND BETWEEN ABOUT 0.05 AND 4 (CALCULATIONS IN CESIUM METAL) OF CESIUM OR A COMPOUND OF CESIUM WITH RESPECT TO THE SOLID CONTACT MASS SILICON AND CATALYST. BY IMPLEMENTING THE PROCESS OF THE INVENTION THE PRODUCTIVITY, THE MAXIMUM RATE OF TRANSFORMATION INTO SILICON AND THE SELECTIVITY IN DIMETHYLDICHLOROSILANE are improved.

FINE FIBER TYPE CARBON FLUORIDE AND PREPARING METHOD THEREOF

PURPOSE: Disclosed is a carbon fluoride in fine fiber type, which is prepared by the reaction of a fine carbon fiber from iron-based catalyst and fluorine gas. CONSTITUTION: The carbon fiber, (CFx)n, where x is 0.7-1.7, has a hollow space or non-graphite in its inner part. The specific character of fiber is an aspect ratio of 100-1000, an outer diameter of 10-100 nm, an inner diameter of 1/3-2/3 of the outer diameter, and a specific surface area of 60-500 m^2/g. The reaction temperatures of fine carbon fiber and fluoride, the first purifying step, and the second purifying step are 300-650, 380-420, and 480-520 deg.C, respectively. The residue content of the catalyst in prepared fiber is maintained at 0.1-5wt%. COPYRIGHT 2001 KIPO ...

ABSORBENT, CATALYST, AND/OR BINDER SYSTEM REINFORCED BY CONTACTING WITH ACID

PURPOSE: A catalyst is provided to strongly connect an absorbed pollutant, and to promote the reaction to convert the pollutant to a residual product of non-pollutant. CONSTITUTION: A catalyst is produced by: contacting an oxidized aluminum particle of non-amorphous, non-ceramic, crystal, porous, and burned produced by burning at 300 to 700°C of the particle temperature with a diluted acid for a sufficient time to increase the absorbing characteristic of the oxidized aluminum particle; not continuously contacting the oxidized aluminum result material. The contact of acid is not corroded the particle thorough it washes the surface. An absorbent particle is produced by contacting the absorbent particle of non-ceramic, porosity, and oxidation with the acid for the sufficient time to increase the absorbing characteristic. COPYRIGHT 2000 KIPO ...

ACID CONTACTED ENHANCED ADSORBENT AND/OR CATALYST AND BINDER SYSTEM

This invention relates to a process for producing an enhanced adsorbent particle comprising contacting a non-amorphous, non-ceramic, crystalline, porous, calcined, aluminum oxide particle that was produced by calcining at a particle temperature of from 300 °C to 700 °C, with an acid for a sufficient time to increase the adsorbent properties of the particle. A process for producing an enhanced adsorbent particle comprising contacting a non-ceramic, porous, oxide adsorbent particle with an acid for a sufficient time to increase the adsorbent properties of the particle is also disclosed. Particles made by the process of the instant invention and particle uses, such as remediation of waste streams, are also provided. The invention also relates to a method for producing an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream. The invention also relates to an anchored adsorbent and ...

Use of compounds having hydrotalcite structure for the preparation of beta-hydroxy and/or alpha-beta unsaturated carbonyl compounds

A new method for the preparation of beta-hydroxy- and/or alpha,beta-unsaturated organic compounds from aldehydes or ketones The use of a compound with a hydrotalcite structure in aldol condensation reactions, particularly for the conversion of acetone to diacetone alcohol. The use of compounds of the general formula (I) as heterogeneous catalysts in the synthesis of ß-hydroxy and/or ¿/ß-unsaturated carbonylated compounds. (M(II)1-xM(III)x(OH)2+x).mH2O (I) M(II) = Ni, Zn, Co, Mg, or a mixture of two or more; M(III) = Al, Ga, Fe or Cr (compound I, in which M(II) = Mg and M(III) = Al, is excluded); x = 0.20 - 0.33; m = at most 1; ...

NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ITS MANUFACTURING METHOD, AND NONAQUEOUS SECONDARY BATTERY USING IT

PROBLEM TO BE SOLVED: To provide a negative electrode material for a nonaqueous electrolyte secondary battery having an excellent battery characteristics, especially a good cycle characteristics and charging/discharging capacitance. SOLUTION: The negative electrode material for a nonaqueous electrolyte secondary battery comprises an active material containing a single element that can constitute an alloy with lithium or a compound containing the element, a carbon nanofiber which is grown from the surface of the active material, a catalyst that encourages growth of the carbon nanofiber, and a carbon coating layer that coats the active material and carbon nanofiber. The ratio in weight of the carbon coating layer against the carbon nanofiber is equal to 1/2 or less. COPYRIGHT: (C)2008,JPO&INPIT ...

КАТАЛИЗАТОР, СПОСОБ ЕГО ПРИГОТОВЛЕНИЯ И СПОСОБ ОЧИСТКИ БУТЕНОВ ОТ ПРИМЕСЕЙ БУТАДИЕНА

Настоящее изобретение относится к области гетерогенного катализа, а именно к катализатору и способу очистки бутенов от примесей бутадиена. Описан катализатор для очистки бутенов от вредных примесей диеновых углеводородов селективным гидрированием, содержащий нитевидный углерод, связанный со сплавом никеля, и носитель - оксид алюминия, отличающийся тем, что он содержит нитевидный углерод, связанный с частицами сплава никеля с индием в качестве промотирующей добавки, содержание которого в (Ni-In)/C катализаторе составляет 35-80 мас.% с отношением атомных долей никеля/индия от 19 до 52, содержание (Ni-In)/C в катализаторе составляет 96-97 мас.%, остальное носитель - оксид алюминия. Также описан способ приготовления катализатора для очистки бутенов от вредных примесей диеновых углеводородов селективным гидрированием, заключающийся в мехактивировании смеси оксида никеля, гидроксида алюминия и соединения, содержащего промотирующую добавку в центробежной планетарной мельнице с последующим восстановлением ...

КАТАЛИЗАТОР ДЛЯ ОКИСЛЕНИЯ МОЛЕКУЛЯРНОГО АЗОТА

Изобретение касается состава катализатора для процесса окисления молекулярного азота его кислородными соединениями. Заявляемый катализатор содержит в качестве основного компонента (75-96,5%) дешевый и недефицитный оксид железа (III) и дополнительно оксиды металлов, выбранных из группы, включающей алюминий, хром, магний, ванадий, церий, цезий, кальций, висмут, бор, лантан, титан, медь, барий, цирконий, марганец, кадмий, иттрий, стронций, молибден, галлий. Изобретение позволяет снизить себестоимость производства оксидов азота путем снижения стоимости катализатора без ухудшения его качества.

PROCESS AND CATALYST WITH AN ALKALI METAL AS ADDITIVE FOR THE DIRECT SYNTHESIS OF DIMETHYLDICHLOROSILANE

SCHWEROELCRACKVERFAHREN.

Verfahren zur Herstellung von Nitrilen und Oxiden.

METALLIC OXIDE COMPOSITE MATERIALS AND THEIR USE FOR THE DESTRUCTION OF UNWANTED FLUIDS MATERIALS

HEAVY OIL CRACKING PROCESS

PROCESS FOR THE PRODUCTION OF DIMETHYLDICHLOROSILANE

PROCESS FOR THE PRODUCTION OF DIMETHYLDICHLOROSILANE

USE OF HYDROTALCITE-STRUCTURE COMPOUNDS IN THE PREPARATION OF UNSATURATED CARBONYL-.BETA.-HYDROXY AND/OR .ALPHA.-.BETA. COMPOUNDS

L'invention concerne l'utilisation de composés de structure de type hydrotalcite pour la préparation de composés carbonylés .beta.-hydroxy et/ou .alpha.-.beta. insaturés par catalyse basique hétérogène. Les composés en question sont de formule: ¢M(II)1-X, M(III)x (OH)2+x!, m(H2O) (I) dans laquelle M(II) représente un cation divalent choisi dans le groupe constitué par le nickel, le zinc, le cobalt, le magnésium ou le mélange de deux ou plus des métaux précités; M(III) représente un cation trivalent tels que l'aluminium, le gallium,, le fer, le chrome, à l'exclusion du composé de formule (I) dans laquelle M(II) est le magnésium et M(III) est l'aluminium, x est compris entre 0,20 et 0,33 et m ~ 1.

Способ получения каталитических мембран

Изобретение относится к способу получения каталитических мембран, которые могут быть использованы для очистки водных растворов от труднодеградируемых органических примесей. Способ включает нанесение на пористую поверхность мембраны каталитически активного композитного слоя, при этом в качестве пористой мембраны используют кордиерит или полимерный материал, у которой предварительно каталитически активируется поверхность, затем наносят слой никель-кобальт-бора и диоксида титана при температуре 70…80°С и перемешивании из раствора, содержащего, в г/л: хлористый никель 30,0…35,0 хлористый кобальт 15,0…20,0 тартрат натрия-калия 60,0…80,0 диметиламиноборан 2,0…3,0 нитрат таллия 0,02…0,05 диоксид титана 20,0…50,0 после чего осуществляют выщелачивание бора. Каталитическую активацию поверхности мембран осуществляют путем обработки раствором, содержащим, в г/л: олово двухлористое 15, 0…20,0 палладий хлористый 0,5…1,0 кислота соляная до рН = 1,5…2,0 а выщелачивание бора осуществляют путем обработки ...

Способ получения каталитических мембран

Изобретение относится к способу получения каталитических мембран, которые могут быть использованы для очистки водных растворов от труднодеградируемых органических примесей. Способ включает нанесение на пористую поверхность мембраны каталитически активного композитного слоя, при этом в качестве пористой мембраны используют кордиерит или полимерный материал, у которой предварительно каталитически активируется поверхность, затем наносят слой никель-кобальт-бора и диоксида титана при температуре 70…80°С и перемешивании из раствора, содержащего, в г/л: хлористый никель 30,0…35,0 хлористый кобальт 15,0…20,0 тартрат натрия-калия 60,0…80,0 диметиламиноборан 2,0…3,0 нитрат таллия 0,02…0,05 диоксид титана 20,0…50,0 после чего осуществляют выщелачивание бора. Каталитическую активацию поверхности мембран осуществляют путем обработки раствором, содержащим, в г/л: олово двухлористое 15,0…20,0 палладий хлористый 0,5…1,0 кислота соляная до рН = 1,5…2, 0 а выщелачивание бора осуществляют путем обработки ...

Novel gasoline and diesel hydrorefining supported catalyst as well as preparation method and application thereof

The invention relates to a novel gasoline and diesel hydrorefining supported catalyst as well as a preparation method and application thereof. According to the technical scheme, metal elements and scattered metal elements are loaded on an oxide carrier, wherein the oxide carrier is an SiO2-TiO2-ZrO2 three-element oxide carrier, the metal elements are selected from one or two of tungsten, chromium, cobalt, molybdenum and nickel, and the scattered metal elements are selected from one of Ga, Ge, In, Re and Cd. The catalyst microcosmically adopts a mesoporous structure (2 nm to 50 nm), is high in hydrodesulfurization (HDS) and hydrodenitrogeneration (HDN) activities on gasoline and diesel hydrorefining and higher in activity on aromatic hydrosaturation (HDA), and has the advantages that the operation is easy and the required process conditions are milder than conventional process conditions.

Excessive reduction resistant xAl2O3/Ni/In2O3 catalyst and preparation method thereof

The invention belongs to the technical field of catalysis, and particularly relates to an anti-excessive-reduction xAl2O3/Ni/In2O3 catalyst and a preparation method thereof. The preparation method comprises the following steps: synthesizing a metal organic framework MIL-68 (In) by adopting a hydrothermal method, loading a nickel source by adopting an impregnation method, plating an Al2O3 film by adopting an atomic layer deposition technology, and roasting at a high temperature to obtain an xAl2O3/Ni/In2O3 catalyst (x represents a deposition cycle number). The xAl2O3/Ni/In2O3 is used for catalyzing a reaction for preparing methanol through CO2 hydrogenation, and compared with a Ni/In2O3 catalyst, the xAl2O3/Ni/In2O3 has the advantages that the structure of the xAl2O3/Ni/In2O3 is not obviously damaged after high-temperature hydrogen reduction treatment and still keeps excellent methanol generation performance, so that the xAl2O3/Ni/In2O3 has good excessive reduction resistance. The method ...

PROCESS AND CATALYST WITH BARIUM AND/OR STRONTIUM LIKE ADDITIVE FOR THE DIRECT SYNTHESIS OF THE DIMETHYLDICHLOROSILANE

MEMBRANE CATALYTIC ENGINE

Ensemble caractérisé en ce qu'il comprend soit une couche dense (CD1), constituée d'un matériau comportant au moins 75 % en volumique et au plus 100 % volumique d'un composé de formule (I) : Mα1-x-uMα'xMα''uMβ1-y-vMβ'yMβ''vO3-w, une couche poreuse (CP1), adjacente à ladite couche dense (CD1), constituée d'un matériau comportant au moins 75 % en volumique et au plus 100 % volumique d'un composé de formule (II) : Mγ1-x-u Mγ'x Mγ''u Mδ1-y-v Mδ'y Mδ''vO3-w et une couche catalytique (CC1), adjacente à ladite couche dense (CD1) et constituée d'un matériau comportant au moins 75 % en volumique et au plus 100 % volumique d'un composé de formule (III) : Mε1-x-uMε'xMε''uMη1-y-vMη'yMη''vO3-w, ; soit une couche dense (CD1), une couche poreuse (CP1), une couche catalytique (CC1), d'épaisseur EC1, telle que définie ci-dessus ; et une deuxième couche poreuse (CP2), intercalée entre ladite couche catalytique (CC1) et ladite couche dense (CD1), constituée d'un matériau comportant au moins 75 % en volumique ...

CATALYST FOR VAPOR-PHASE HETEROGENEOUS CATALYTIC DEHYDROGENATION OF ETHANOL TO ETHYL ACETATE, METHOD FOR PRODUCING ETHYL ACETATE AND METHOD FOR REMOVING IMPURITIES FROM ETHANOL DEHYDROGENATION REACTION

A catalyst for vapour-phase heterogeneous catalytic dehydrogenation of ethanol to ethyl acetate contains a mixture of CuO, ZnO, ZrO2 and AI2O3 oxides and further contains from 0.1 to 20 wt.% metal oxide wherein the metal is cerium, gallium, lanthanum or indium. Ethanol vapour is fed to a dehydrogenation reactor (5). In the reactor, on the surface of the catalyst, dehydrogenation of ethanol is carried out to form ethyl acetate and hydrogen. After the dehydrogenation, the formed reaction mixture is fed to a hydrogenation reactor (7) to convert carbonyl-containing by-products on a hydrogenation catalyst, which may have the same composition as the dehydrogenation catalyst, and further to a separator to separate ethyl acetate.

Process for the catalytic preparation of hydrogen cyanide from methane and ammonia

The invention relates to a catalyst material comprising a support, a first metal and a second metal on said support. The first and second metals are in the form of a chemical compound. The first metal is Fe, Co or Ni, and the second metal is selected from the group consisting of Sn, Zn and In. The invention also relates to a process for the preparation of hydrogen cyanide (HCN) from methane (CH4) and ammonia (NH3), wherein the methane and ammonia are contacted with a catalyst according to the invention.

Monolithic carrier catalyst and arrangements of such a catalyst for the purification of exhaust gases from an internal combustion engine

In a monolithic carrier catalyst containing a catalytically active substance for the purification of a stream of exhaust gases from an internal combustion engine, the improvement comprises providing an increasing concentration of catalytically active substance on the monolithic carrier catalyst, wherein the concentration increases in the direction of flow of the exhaust gases. The catalyst is particularly useful in oxidizing and/or reducing the noxious substances in automotive exhaust gases.

CATALYST FOR OXIDATIVE DEHYDROGENATION AND METHOD OF PREPARING THE SAME

Disclosed are a catalyst for oxidative dehydrogenation and a method of preparing the same. More particularly, a catalyst for oxidative dehydrogenation of butene having a high butene conversion rate and superior side reaction inhibition effect and thus having high reactivity and high selectivity for a product by preparing metal oxide nanoparticles and then fixing the prepared metal oxide nanoparticles to a support, and a method of preparing the same are provided.

СПОСОБ ПОЛУЧЕНИЯ МЕДНО-АЛЮМИНИЕВЫХ ШПИНЕЛЕВЫХ ЭКСТРУДАТОВ

Изобретение касается способа получения медно-алюминиевых шпинелевых экструдатов, в частности экструдатов в виде сот, которые после сушки и кальцинирования могут быть использованы в качестве катализаторов. Описывается способ получения медно-алюминиевых шпинелевых экструдатов путем экструзии порошка медно-алюминиевой шпинели, а в случае необходимости и вспомогательных средств, используемых при прессовании, стабилизаторов, антиусадочных средств, порообразователей или формовочных масс, содержащих их смеси, исходная формовочная масса дополнительно содержит окислы алюминия или гидраты окиси алюминия и нитраты металлов в весовом соотношении, соответствующем весовому соотношению медно-алюминиевой шпинели, а кальцинирование осуществляют при температурах в диапазоне от 700 до 900o. Описаны также изделия в виде сотовых профилей, получаемые описанным выше способом, причем исходный экструдат сушат при температурах в диапазоне от 10 до 2000oС или сублимируют при температурах в диапазоне от минус 40 до ...

CПOCOБ ПOЛУЧEHИЯ AЛKИЛГAЛOИДCИЛAHOB

Catalyst for reduction of carbon dioxide

SCHWEROELCRACKVERFAHREN.

PROCESS FOR DEHYDROGENATING ALKANES

ELECTRONICALLY CONDUCTIVE REFORMER CATALYST FOR A FUEL CELL AND METHOD FOR PRODUCING THE SAME

The invention relates to an electronically conductive reformer catalyst for a fuel cell, in particular a molten carbonate fuel cell, containing particles of a water-adsorbent substrate material (6) and particles of a catalyst material (7) located on said substrate material (6). According to the invention, the substrate material (6) itself is electronically conductive. The specific conductivity of the reformer catalyst (4) preferably exceeds 1 S/cm under operating conditions.

A CATALYST, ITS PREPARATION AND USE

A dehydrogenation catalyst is described that comprises an iron oxide, an alkali metal or compound thereof, and indium or a compound thereof. A proces s for preparing a dehydrogenation catalyst comprising preparing a mixture of iron oxide, an alkali metal or compound thereof, and indium or a compound t hereof is also described. Additionally, a dehydrogenation process using the catalyst and a process for preparing polymers are described.

HYDROCARBON-REFORMING CATALYST AND PROCESS FOR PRODUCING SYNTHESIS GAS USING THE SAME

A catalyst for reforming which comprises a composite oxide having a composition represented by the following formula (I), the Co, Ni, and M having been dispersed in the composite oxide; and a process for producing synthesis gas using the catalyst. aM bCo cNi dMg eCa fO (I) [In the formula (I), a, b, c, d, e, and f indicate molar fractions and satisfy the following: a+b+c+d+e=1, 0.0001 Подробнее

HYDROGENATION WITH CU-A1-X CATALYSTS

HYDROGENATION WITH Cu-Al-X CATALYSTS A process for hydrogenating feeds into their corresponding alcohols by contact with a coprecipitated catalyst comprising copper, aluminum, and a metal (X) selected from the group consisting of magnesium, zinc, titanium, zirconium, tin, nickel, cobalt and mixtures thereof; that has been reduced with an increasing temperature during the reduction.

PROCESS FOR THE PRODUCTION OF NITRILES AND OXIDES

An improved process is provided for the production of nitriles and oxides from hydrocarbons by reaction with oxygen, air or a gas enriched in oxygen relative to air, preferably the latter, and ammonia where a nitrile is desired, in the presence of a suitable catalyst. An alkane, e.g. propane, is converted to an alkene in a catalytic dehydrogenator. The product stream is introduced into an ammoxidation/oxidation reactor. The product formed therein is recovered in a conventional quench tower. The pressure of the gaseous effluent from the quench tower is raised and it is introduced into an absorber/stripper unit to form a recycle stream containing unreacted alkane and alkene as well as a minor amount of oxygen, typically 1-2 percent by volume, and a waste stream comprising the remainder of the quench tower gaseous phase. The recycle stream is introduced into a selective oxidation unit to remove the oxygen therefrom and then recycled to the dehydrogenator. Flammability of the quench tower gaseous ...

Method for catalyzing oxidation coupling of tetrahydroisoquinoline derivative by hydrotalcite-like material

Double oxide composite type super thermite and preparation method thereof

A gasoline, diesel oil hydrofines supported catalyst and preparation method and application thereof

Preparation method for Cu-based hydrogenation catalyst

PROCESS AND CATALYST WITH CESIUM LIKE ADDITIVE FOR THE DIRECT SYNTHESIS OF THE DIMETHYLDICHLOROSILANE

CATALYST ON SUPPORT MONOLITH AND DEVICE COMPRISING OF CATALYSTS ON SUPPORTS MONOLITHS FOR the PURIFICATION OF EXHAUST FUMES OF the INTERNAL COMBUSTION ENGINES

PROCESS AND CATALYST WITH ALKALINE LIKE ADDITIVE FOR THE DIRECT SYNTHESIS OF THE DIMETHYLDICHLOROSILANE

PROCESS AND CATALYST WITH BARIUM AND/OR STRONTIUM LIKE ADDITIVE FOR THE DIRECT SYNTHESIS OF THE DIMETHYLDICHLOROSILANE

CO2 DESORPTION CATALYST

Provided is a CO2 desorption catalyst having excellent CO2 desorption activity, to be used in place of a metal filler. A CO2 desorption catalyst comprising an inorganic powder or a molding of an inorganic powder, the CO2 desorption catalyst being characterized in that the BET specific surface area of the inorganic powder or the molding of an inorganic powder is at least 7 m2/g.

FIBROUS CATALYST, ITS PREPARATION AND USE THEREOF

The present invention provides a method for preparing a fibrous catalyst for the treatment of a waste stream, the method comprising the steps of: (i) treating a fabric comprising polyacrylonitrile fibres with a hydrazine salt and a hydroxylamine salt in the presence of a base to provide a modified fabric; (ii) treating the modified fabric with a base; and (iii) treating the modified fabric with an aqueous solution comprising a sulfate salt of a first metal cation and a salt of a second metal cation, wherein the first metal cation is selected from an iron and nickel cation, and mixtures thereof, and wherein the second metal cation is selected from a lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium, zinc, cadmium, mercury, aluminium, gallium, indium, thallium, tin, lead, antimony and bismuth cation, and mixtures thereof.

Direct catalytic synthesis of dimethyldichlorosilane from methyl chloride and silicon

Dimethyldichlorosilane is directly prepared from methyl chloride and silicon, in high productivity, selectivity and degree of silicon conversion, by reacting methyl chloride with a solid contact mass comprising silicon and a catalytically effective amount of a catalyst which includes (1) elemental copper or a copper compound, (2) from about 30 to 1,000 ppm (calculated as metallic tin and/or antimony) of at least one of the metals tin and antimony, or at least one compound of at least one of the metals tin and antimony, and (3) from about 0.05 to 2% by weight, (calculated as alkali metal) of at least one of the alkali metals lithium, sodium, potassium and rubidium, or compound thereof, the amounts of said components (2) and (3) being based upon the total weight of said solid contact mass.

Process for the Hydrotreatment of Vegetal Materials

The present invention relates to a process for the hydrotreatment of a vegetal biomass. Specifically, the present invention relates to a process for the hydrotreatment of a vegetal biomass comprising: a) subjecting said vegetal biomass to a hydrotreatment in a first reactor, said hydrotreatment comprises contacting said vegetal biomass in an aqueous medium and a metal oxide, a mixed metal oxide, or a metal-metalloid oxide catalyst comprising at least 35% by weight of metal oxide, mixed metal oxide, or metal-metalloid oxide relative to the total weight of the catalyst, with hydrogen at a pressure in the range of 10 to 400 bar and at a temperature in the range of 50° C. to 300° C. until a predetermined level of the hydrotreatment of said biomass is obtained and wherein the metal oxide, a mixed metal oxide, or a metal-metalloid oxide catalyst comprises nickel. Further, the present invention relates to a metal oxide, mixed metal oxide or metal-metalloid oxide catalyst. Furthermore, the present ...

Hydrogenation catalyst for aromatic hydrocarbon, and method for producing cyclic saturated hydrocarbon

A hydrogenation catalyst for an aromatic hydrocarbon capable of inhibiting generation of a byproduct is provided. A hydrogenation catalyst for an aromatic hydrocarbon according to one aspect of the present invention comprises an active component containing an active metal element and an additional element, the active metal element is one selected from the group consisting of nickel, palladium and platinum, the additional element is one selected from the group consisting of tin, germanium, gallium, copper and iron, and an X-ray diffraction spectrum of the active component has a local maximum value at a diffraction angle da different from the diffraction angle dm, where a diffraction angle of diffracted X-ray derived from a crystal structure of a simple substance m of the active metal element is dm.

Method for preparing organohalosilanes

The present invention provides a method for reducing the concentration of methyltrichlorosilane obtained during the reaction of silicon metal with methyl chloride without substantially decreasing the combined yield of methyldichlorosilane, dimethylchlorosilane and dimethyldichlorosilane. The methyl chloride is blended with from 0.05 up to about 44 mole percent of hydrogen, based on combination of methyl chloride and hydrogen. At hydrogen concentrations above about 12 mole percent there is a substantial increase in the methyldichlorosilane content of the reaction product while the concentration of methyltrichlorosilane in the reaction product is maintained below about 4 percent by weight.

Process for the selective hydrogenation of hydrocarbons

ＣＯ２脱離触媒

BASE METAL CATALYST FOR AUTOMATIC EXHAUST GAS TREATMENT

PURPOSE: To improve activity persistence or the like by dispersing and depositing a copper oxide and a metal oxide selected from titania, zirconia, tin oxide, niobium oxide, tantalum oxide or the like on an alumina support. CONSTITUTION: The catalyst for an internal-combustion engine exhaust gas treatment is formed by dispersing and depositing the copper oxide and one kind of metal oxide selected from a group consisting of the titania, the zirconia, the tin oxide, the niobium oxide, the tantalum oxide and hafnium oxide on the alumina support. The alumina support adequately consists of solid ceramics or honeycomb-shaped monolithic of metals. the alumina support consisting of 15 to 100 wt.% monolithic support is more adequate. The shape of the alumina support is adequately pellet, spherical or the like.

СПОСОБ ПРИГОТОВЛЕНИЯ КАТАЛИЗАТОРА ДЛЯ СИНТЕЗА АКРИЛОНИТРИЛА

Способ приготовления катализатора для синтеза акрилонитрила на основе окислов сурьмы, галлия, никеля, фосфора и вольфрама, включающий смешение растворов солей активных компонентов, осаждение раствором аммиака до рН 7, сушку и прокаливание, отличающийся тем, что, с целью исключения сточных вод, смешивают раствор азотнокислого галлия с суспензией трехокиси сурьмы, окисленный перекисью водорода и выдержанной при 75-85oC в течение 2-3 ч, выдерживают при 75-85oC в течение 1-2 ч, добавляют раствор вольфрамовокислого аммония, полученную смесь выдерживают при 75-85oC в течение 1-2 ч, затем добавляют раствор аммиака, полученную суспензию сушат в распылительной сушилке и прокаливают при 300-500oC, полученный порошок смешивают с гелеобразным фосфатом никеля, массу гранулируют, сушат и прокаливают при 850-870oC.

Катализатор для окисления аммиака

Verfahren zur selektiven Hydrierung von Kohlenwasserstoffen

Verfahren zur Dehydrierung von gesättigten aliphatischen Kohlenwasserstoffen in olefinischen Kohlenwasserstoffen

PROCEDURE FOR THE PRODUCTION OF NITRILES AND OXIDES.

HYDROGENATION WITH CU-AL-X CATALYSTS

METHOD FOR MAKING ALKYLHALOSILANES

IRON OXIDE/MAGNESIUM OXIDE COMPOSITES AND METHOD FOR DESTRUCTION OF CHLORINATED HYDROCARBONS USING SUCH COMPOSITES

Finely divided composite materials are provided comprising a first metal oxi de (e.g., MgO) at least partially coated with an extremely thin layer of a seco nd metal oxide such as Fe2O3. The composites have a high surface area and are very effective for the destructive adsorption of undesirable fluids in gaseo us or liquid form, such as chlorocarbons and clorofluorocarbons. In use, a flui d stream including undesirable fluids are contacted with the composites of the invention, such as through the use of a filter containing the composite as a part of the filter media thereof.

CATALYST FOR REDUCTION OF CARBON DIOXIDE

A catalyst for the reduction of carbon dioxide which comprises at least one transition metal selected from the group consisting of Group VIII (e. g., Ni, Fe, Co, Ru, Rh) and Group VIa (e.g., Mo, W) in the Periodic Table on zinc oxide alone or a composite containing zinc oxide and at least one metal oxide of a metal selected from the group consisting of Group IIIb (e.g., Al, Ga) and Group IVa (e.g., Ti, Zr) in the Periodic Table.

CATALYST CONTAINING A GROUP VIII METAL AND A GROUP IIIA METAL DEPOSITED ON A SUBSTRAT

L'invention concerne un nouveau catalyseur d'hydrogénation sélective des hydrocarbures insaturés. Elle est caractérisée par le fait que le catalyseur contienne un métal du groupe VIII déposé sur un support préalablement modifié par un élément choisi dans le groupe IIIA constitué par le gallium et l'indium.

Structured carrier catalyst with desulfurization effect as well as preparation method and application thereof

Preparation method and application of doped modified indium oxide-based composite material

The invention provides a preparation method and application of a doped modified indium oxide-based composite material, and relates to the technical field of semiconductor photocatalytic materials. The composite material is prepared by taking indium oxide as a main body material and iron titanate as a modified material through a hydrothermal method, and the preparation process is simple. The doped modified indium oxide-based composite material overcomes the defect that an indium oxide monomer only absorbs ultraviolet light, the absorption interval of the doped modified indium oxide-based composite material is expanded to a visible light region, and solar energy can be more efficiently utilized for driving. The doped modified indium oxide-based composite material has good photodegradation performance on various antibiotics.

Supported Ni-In-M catalyst as well as preparation method and application thereof

The invention provides a supported Ni-In-M catalyst, the catalyst takes a magnesium-aluminum metal mixed oxide MgAlOx as a carrier, metal Ni, In and M are supported, and the metal M is Pd or Pt; active sites of the metal Ni are completely isolated by the inert metal In; the loading capacity of the Pd is 50 to 800 ppm; the loading capacity of the Pt is 50 to 400 ppm; ni/In/Mg/Al quaternary LDHs are prepared by using a coprecipitation method, then trace precious metal M is introduced through ion exchange to prepare Ni/In/M/Mg/Al pentabasic LDHs as a precursor of the Ni-In-M intermetallic compound catalyst, and then the Ni-In-M intermetallic compound catalyst which is stable in structure and ordered in a long range is obtained through high-temperature thermal reduction treatment. The catalyst is used for acetylene and MAPD catalytic selective hydrogenation reaction, has the characteristics of high alkyne hydrogenation catalytic activity, good olefin selectivity and long service life, and can ...

PROCEEDED WITH ALIPHATIC HYDROCARBON DEHYDROGENATION SATURATE WITH OLEFINIC HYDROCARBONS

Procédé de déshydrogénation d'hydrocarbures aliphatiques C5-C22 en hydrocarbures oléfiniques correspondants, en présence d'un catalyseur renfermant au moins un support, au moins un métal du groupe VIII de la classification périodique des éléments, et au moins un élément additionnel M choisi dans le groupe constitué par le germanium, l'étain, le plomb, le rhénium, le gallium, l'indium et le thallium, ledit procédé étant caractérisé en ce que le catalyseur est préparé selon un procédé dans lequel ledit métal M est introduit dans un solvant aqueux sous la forme d'au moins un composé organométallique comprenant au moins une liaison carbone-M.

CATALYST AND PROCESS Of OXIDATION OF COMPOSE ORGANIC OF SULPHUR

PROCEDE DE PRODUCTION D'ALCOOLS PAR HYDROGENOLYSE D'ESTERS D'ACIDES CARBOXYLIQUES EN PRESENCE D'UN CATALYSEUR CONTENANT DU NICKEL ET DE L'ETAIN, DU GERMANIUM OU DU PLOMB

LA PRESENTE INVENTION A POUR OBJET LA PRODUCTION D'ALCOOLS PAR HYDROGENOLYSE D'ESTERS D'ACIDES CARBOXYLIQUES, SOUS PRESSION D'HYDROGENE EN PRESENCE D'UN CATALYSEUR RESULTANT DE L'INCORPORATION D'AU MOINS UN COMPOSE D'AU MOINS UN METAL DU GROUPE CONSTITUE DU GERMANIUM, DE L'ETAIN ET DU PLOMB A DU NICKEL DE RANEY OU A UN SUPPORT CONTENANT DU NICKEL. LA REACTION A LIEU DE PREFERENCE A UNE TEMPERATURE DE 180 A 330C ET SOUS UNE PRESSION DE 1 A 10 MPA.

PROCEDE ET CATALYSEUR AVEC LE BARYUM ET/OU LE STRONTIUM COMME ADDITIF POUR LA SYNTHESE DIRECTE DU DIMETHYLDICHLOROSILANE

LA PRESENTE INVENTION CONCERNE UN PROCEDE DE FABRICATION DE DIMETHYLDICHLOROSILANE PAR REACTION DE CHLORURE DE METHYLE SUR UNE MASSE DE CONTACT SOLIDE FORMEE DE SILICIUM ET D'UN CATALYSEUR COMPORTANT DU CUIVRE OU UN COMPOSE DU CUIVRE, LEDIT PROCEDE ETANT CARACTERISE EN CE QUE LE CATALYSEUR COMPORTE EN OUTRE ENTRE ENVIRON 10 ET 1000PPM (CALCULES EN ETAIN ETOU ANTIMOINE METAL) D'UN METAL CHOISI PARMI L'ETAIN ET L'ANTIMOINE, OU D'UN COMPOSE DE L'ETAIN ET DE L'ANTIMOINE ET ENTRE ENVIRON 0,01 ET 2 (CALCULES EN POIDS DE METAL) D'UN ADDITIF METALLIQUE CHOISI PARMI LE BARYUM ET LE STRONTIUM OU D'UN COMPOSE DE CES DEUX METAUX PAR RAPPORT A LA MASSE DE CONTACT SOLIDE SILICIUM ET CATALYSEUR. PAR LA MISE EN OEUVRE DU PROCEDE DE L'INVENTION ON AMELIORE LA PRODUCTIVITE, LE TAUX DE TRANSFORMATION MAXIMUM EN SILICIUM ET LA SELECTIVITE EN DIMETHYLDICHLOROSILANE.

Selective hydrogenizing process of hydrocarbons

L'invention concerne un procédé d'hydrogénation sélective des hydrocarbures insaturés. Elle est caractérisée par le fait que le catalyseur contient un métal du groupe VIII et un élément choisi dans le groupe constitué par l'aluminium, le gallium et l'indium.

Soot and Hydrocarbon Reduction Catalyst and Preparation Method The Same

CATALYST FOR PREPARING CARBON NANOCOIL, METHOD FOR PREPARATION THEREOF, METHOD FOR PREPARING CARBON NANOCOIL AND CARBON NANOCOIL

A catalyst for preparing a carbon nanocoil which comprises a carbide catalyst comprising the elements of (transition metal element, In, C) or (transition metal element, Sn, C), or comprises a metal catalyst comprising the elements of (Fe, Al, Sn) or (Fe, Cr, Sn). The transition metal element of the carbide catalyst is preferably Fe, Co or Ni. More preferable catalysts include FeInC, FeInCSn and Fe SnC. A catalyst comprising a porous carrier and the above catalyst carried thereon is capable of controlling the diameters of the wire and the coil of the resulting carbon nanocoil. The above catalyst allows the preparation of a carbon nanocoil with high efficiency, and it has been found through taking the catalyst nucleus attached on the apex of a carbon nanocoil as a true catalyst for preparing the carbon nanocoil and determining the structure of the catalyst nucleus.30.530.5w3 © KIPO & WIPO 2007 ...

PROCESS FOR THE CONVERSION OF AN OIL FRACTION WEIGHED IN LIGHTER FRACTIONS

Bis(silyl)methanes and their direct synthesis

The present invention relates to bis(silyl)methanes and their preparation methods in high hields by directly reacting α-chloromethylsilanes represented by formula I incorporated with hydrogen chloride or alkylchlorides represented by the general formula II, with silicon metal to give the bis(silyl)methane compound having dichlorosily group (formula III) as the major products and the bis(silyl)methane compounds having trichlorosilyl group (formula IV) in moderately high yields in the presence of copper catalyst at a temperature from 250° C. to 350° C. The different major product is obtained depending upon the chloride incorporated. n-Butyl chloride, t-butyl chloride, propyl chloride, and hydrogen chloride gave bissilylmethane with hydrogen substituted on the silicon atom as the major product. When 1,2-dichloroethane is incorporated, bis(silyl)methanes having trichlorosilyl group is the major product. см. иллюстрацию в PDF-документе In formulae (I), (III), (IV), R1, R2, and R3 are independently ...

Method Of Making Organohalosilanes

The invention pertains to a process for the preparation of organohalosilanes. The process comprises contacting a first finely-divided silicon comprising from 0.08 to 0.25% (w/w) of aluminum with an organohalide in a reactor at a temperature of from 250 to 350° C. in the presence of a Direct Process catalyst comprising copper, and a promotor; and introducing a second finely-divided silicon into the reactor comprising from 0.001 to <0.10% (w/w) of aluminum into the reactor as needed in an amount sufficient to maintain an aluminum concentration of from 0.08 to 0.2% (w/w), based on a weight of unreacted silicon and aluminum.

Dry dust removal method in organic chlorosilane production

Dry dust removal method in organic chlorosilane production is provided, in which the detailed steps are as follows: delivering high-temperature flue gas (a) from fluidized bed reactor (I) into inorganic film cross-flow filter (E) to remove dust for the first time; delivering the concentrated dust gas (c) trapped by inorganic film cross-flow filter (II) into bag filter (III) to remove dust for the second time; returning the gas mixture (f) of passing through bag filter (EI) to the air intake of inorganic film cross-flow filter (II); condensing the residual clean gas (b) from the osmotic side of inorganic film in condenser (A), and then rectifying in rectifying column (B) to separate the products of chloromethane (g) and methyl chlorosilane (h) to obtain the product of methyl chlorosilane (h); returning chloromethane to fluidized bed reactor to take part in reaction; retreating the dust (e) trapped by inorganic film cross-flow filter and bag filter, and then returning it to fluidized bed reactor (I) to take part in reaction.

Ligand Synthesis

Compounds 1,3,4-(SiMe)(CF)(alkyl)CHare made using a simplified synthetic strategy which is readily scalable. On reaction with a suitable transition metal species, a 1,3,4-(SiMe)(CF)(alkyl)CHmolecule provides an organotransition metal complex comprising a 1,2-(CF)(alkyl) substituted cyclopentadienyl ligand, which is active toward olefin polymerization. 1. A method for making the compound 1 ,3 ,4-(SiMe)(CF)(R)CHwithout isolating intermediates , said method comprising the following steps:{'sub': 6', '6', '5', '5', '6', '5', '5', '4, 'sup': 1', '2', '1', '1', '2, 'Step 1) in the presence of an ethereal solvent, combining perfluorobenzene CF, a metal cyclopentadienide [M][CH] and a first base MBto form a first reaction mixture comprising [M/M][(CF)CH];'}{'sub': 3', '3', '6', '5', '5', '4, 'Step 2) combining at least 2 molar equivalents of ClSiMewith said first reaction mixture to give a second reaction mixture comprising 1,3-(SiMe)(CF)CH;'}{'sup': 3', '2', '1', '2', '3, 'sub': 3', '6', '5', '5', '3, 'Step 3) combining a second base MBwith said second reaction mixture to give a third reaction mixture comprising [M/M/M][1,3-(SiMe)(CF)CH];'}{'sub': 3', '6', '5', '5', '3, 'claim-text': {'sup': 1', '2', '3', '+', '+', '+', '1', '2, 'wherein M, M, Mare the same or different metal selected from the group consisting of Li, Na and K; Band Bare the same or different base selected from the group consisting of hydride, alkylide, amide and alkoxide; R is a primary or secondary alkyl group; and X is a halide group or a sulfonate group.'}, 'Step 4) combining a compound RX with said third mixture to give a fourth reaction mixture comprising 1,3,4-(SiMe)(CF)(R)CH;'}2. The method of wherein approximately equimolar amounts of CF claim 1 , [Na][CH] and NaH are combined in step 1.3. The method of wherein CFis combined with approximately 2 molar equivalents of [Na][CH] in step 1.4. The method of wherein CFis added slowly over at least 30 min to approximately 2 molar equivalents of [Na][CH] in ...

LAYERED DOUBLE HYDROXIDE PRECURSOR, THEIR PREPARATION PROCESS AND CATALYSTS PREPARED THEREFROM

New layered double hydroxide materials useful as intermediates in the formation of catalysts are described, as well as methods of preparing the layered double hydroxides. Also described are catalysts suitable for catalysing the hydrogenation of COto methanol, as well as methods for preparing the catalysts. The LDH-derived catalysts of the invention are active in the hydrogenation of COto methanol, and show improved activity with respect to Cu/ZnO catalysts derived from copper-zinc hydroxycarbonate precursors. 2. The layered double hydroxide of claim 1 , wherein 0.05≤x≤0.35 or 0.08≤x≤0.35.35-. (canceled)6. The layered double hydroxide of claim 1 , wherein M′ represents at least one trivalent cation selected from Al claim 1 , Ga claim 1 , y claim 1 , In claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Mn claim 1 , Cr claim 1 , Ti claim 1 , V and La.78-. (canceled)9. The layered double hydroxide of claim 1 , wherein M′ is Ga.10. The layered double hydroxide of claim 9 , wherein M represents a mixture of divalent cations comprising Cu and Zn claim 9 , as well as one or more other divalent cations selected from Mg claim 9 , Fe claim 9 , Ca claim 9 , Sn claim 9 , Ni claim 9 , Co claim 9 , MN and Cd.11. The layered double hydroxide of claim 9 , wherein M represents a mixture of divalent cations consisting of Cu and Zn.12. The layered double hydroxide of claim 1 , wherein the mole ratio of Cu to Zn ranges from 1:0.2 to 1:2 or from 1:0.5 to 1:0.9.1315-. (canceled)16. The layered double hydroxide of claim 1 , wherein M is a mixture of divalent cations consisting of Cu and Zn and the molar ratio of Cu:Zn:M′ is 1:(0.30-1.30):(0.05-0.80).17. (canceled)18. The layered double hydroxide of claim 1 , wherein X represents at least one anion selected from a halide claim 1 , an inorganic oxyanion claim 1 , and an organic anion.19. (canceled)20. The layered double hydroxide of claim 11 , wherein X is carbonate.21. The layered double hydroxide of claim 1 , wherein the solvent is selected ...

SLURRY PHASE DIRECT SYNTHESIS OF ORGANOHALOSILANES FROM CYCLONE FINES

The present invention is directed to a process for the synthesis of organohalosilane monomers, comprising the steps of (1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with an organohalide of the formula RX in the presence of an additive for a time and at a temperature sufficient to produce organohalosilane monomers having the formulae RSiHX, RSiHX, RSiX, RSiX, and RSiX; wherein Ris a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and (2) recovering said organohalosilane monomers. 1. A process for the synthesis of organohalosilane monomers , comprising the steps of:{'sup': 1', '1', '1', '1', '1', '1, 'sub': 2', '2', '3', '3', '2', '2, '(1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with at least one organohalide of the formula RX and optionally organohalosilane and/or hydrogen halide in the presence of an additive for a reaction time and at a temperature and pressure sufficient to produce organohalosilane monomers having the formulae RSiHX, RSiHX, RSiX, RSiX, and RSiXor mixtures thereof;'}{'sup': '1', 'wherein Ris a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and'}(2) recovering said organohalosilane monomers from said solvent.2. The process of claim 1 , wherein Ris methyl claim 1 , ethyl claim 1 , phenyl claim 1 , cyclohexyl claim 1 , allyl claim 1 , vinyl claim 1 , methallyl claim 1 , phenyl claim 1 , or benzyl.3. The process of wherein the slurry is a slurry of cyclone fines and wherein Ris allyl or methallyl and the organohalosilane monomers are of the formulae RSiXor mixtures of RSiXand RSiHXand wherein the optional hydrogen halide is present and where the molar ...

METHOD FOR OBTAINING HIGH ALCOHOLS

The present invention relates to a process for obtaining metal oxide catalysts comprising gallium which are capable of synthesising higher alcohols from lower alcohols. The process for obtaining said catalysts is also disclosed. 1. A process for obtaining a catalyst , which comprises the following steps:a) thermal decomposition of a hydrotalcite with the formula{'sub': 1−(x+y)', 'x', 'y', '2', '(x+y)/m', '2, 'sup': 'm-', 'claim-text': M1 is at least one bivalent metal selected from the list that comprises Mg, Zn, Cu, Co, Mn, Fe, Ni and Ca,', 'M2 is at least one trivalent metal selected from the list that comprises Al, La, Fe, Cr, Mn, Co and Ni,', 'M3 is trivalent Ga,, '[M1M2M3(OH)][A.nHO], to obtain a metal oxide, whereinA is at least one anion selected from the list that comprises hydroxide, chloride, fluoride, bromide, iodide, nitrate, perchlorate, chlorate, bicarbonate, acetate, benzoate, methanesulfonate, p-toluenesulfonate, phenoxide, alkoxide, carbonate, sulfate, terephthalate, phosphate, hexacyanoferrate (III) and hexacyanoferrate (II), x is a value between 0 and 0.5; y is a value between 0.00001 and 0.49; m is an integer between 1 and 4; and n is greater than 0,b) addition of to the solid obtained in step (a); andWherein the hydrotalcite is obtained by the co-precipitation of M1, M2 and M3 compounds.2. (canceled)3. The process according to claim 1 , wherein the co-precipitation is performed by the addition of a solution of at least one compound selected from the list that comprises carbonate claim 1 , bicarbonate and hydroxide to a solution of M1 claim 1 , M2 and M3 compounds.4. The process according to claim 1 , wherein the thermal decomposition of step (a) is calcination in an atmosphere of oxygen claim 1 , nitrogen or any mixture thereof at a temperature ranging between 250° C. and 650° C.5. The process according to claim 1 , wherein the addition of Pd of step (b) is performed by wet impregnation claim 1 , incipient volume impregnation or deposition- ...

CATALYST FOR SYNGAS CONVERSION TO LIGHT OLEFINS

The present disclosure provides a composition. In an embodiment, a catalyst composition is provided and includes from 85 mol % to 95 mol % iron metal, and from 15 mol % to 5 mol % indium metal, wherein mol % is based on total moles of iron metal and indium metal. Also provided is a process of contacting, under reaction conditions, a gaseous mixture of carbon monoxide, hydrogen and optionally water with the catalyst composition. The process includes forming a reaction product composed of light olefins. 1. A catalyst composition comprising:from 85 mol % to 95 mol % iron metal;from 15 mol % to 5 mol % indium metal, wherein mol % is based on total moles of iron metal and indium metal.2. The composition of wherein the composition is void of a component selected from the group consisting of nitrogen claim 1 , carbon claim 1 , and combinations thereof.3. The composition of comprising a support component.4. The composition of wherein the support component is alumina.5. The composition of comprisingfrom 9.7 wt % to 9.9 wt % iron metal;from 1 wt % to 3 wt % indium metal; andfrom 87.3 wt % to 89.1 wt % alumina.6. The composition of wherein the composition comprises 90 mol % iron metal and 10 mol % indium metal claim 5 , based on the total moles of iron and indium.7. The catalyst composition of wherein when the catalyst composition is contacted with a gaseous mixture comprising carbon monoxide claim 5 , hydrogen and optionally water under reaction conditions claim 5 , and the catalyst composition hasfrom 40% to 60% light olefin selectivity,{'sub': '2', 'less than or equal to 20 wt % COselectivity, and'}less than or equal to 25 wt % methane selectivity.8. A process comprising:contacting, under reaction conditions, a gaseous mixture comprising carbon monoxide, hydrogen and optionally water with a catalyst composition comprisingfrom 85 mol % to 95 mol % iron metal,from 15 mol % to 5 mol % indium metal, wherein mol % is based on the total moles of iron metal and indium metal in the ...

METHOD OF CATALYTIC CONVERSION OF CARBOHYDRATES TO LOW-CARBON DIOLS BY USING ALLOY CATALYSTS

This invention provides a method for catalytic conversion of carbohydrates to low-carbon diols using alloy catalysts. In the process, carbohydrates as the feedstock are subjected to one-step catalytic conversion to realize the highly efficient and selective production of ethylene glycol etc. under hydrothermal conditions, with an alloy catalyst composed of tin, and a transition metal such as iron, cobalt, nickel, rhodium, ruthenium, palladium, iridium, platinum and copper, or a mixture thereof. The reaction is carried out in water at a temperature range of 120-300° C., with a hydrogen pressure range of 1-13 MPa. Compared with the present petroleum based synthesis technology of ethylene glycol, the method in this invention possesses advantages of using renewable feedstock, high atom economy and environmental friendly. Besides, compared with other technologies using biomass as feedstock to produce ethylene glycol, the alloy catalyst in this invention possesses the advantages of few leaching amount, good hydrothermal stability and easy to recycle. 1. A method for catalytic conversion of carbohydrates to low-carbon diols using alloy catalysts , wherein carbohydrate as the feedstock subjected to catalytic hydrogenation in high pressure reactor in water;an alloy catalyst is synthesized from at least two kinds of metal precursors;said alloy catalyst is composed of tin and a transition metal selected from iron, cobalt, rhodium, ruthenium, palladium, iridium, platinum and copper, or a mixture thereof; the weight ratio between tin and other metals is in the range of 0.01-100;or, the alloy catalyst is composed of the precursors of tin and other metals before use; the precursors of tin are selected from metallic tin or tin compounds, or a mixture thereof; the precursors of other metals are selected from metallic iron, cobalt, rhodium, ruthenium, palladium, iridium, platinum and copper, or iron, cobalt, rhodium, ruthenium, palladium, iridium, platinum and copper compounds, or a ...

PROCESS FOR SYNTHESIZING A METAL-DOPED ALUMINOGALLATE NANOCOMPOSITE AND METHODS OF USE THEREOF

The present disclosure relates to a process for producing a finely divided metal-doped aluminogallate nanocomposite comprising mixing a carrier solvent with a bulk metal-doped aluminogallate nanocomposite to form a bulk metal-doped aluminogallate slurry and atomizing the bulk metal-doped aluminogallate slurry using a low temperature collision to produce a finely divided metal-doped aluminogallate nanocomposite, the composition of a nickel-doped aluminogallate nanocomposite (GAN), and a method of NO decomposition using the nickel-doped aluminogallate nanocomposite. 1: A process for producing a finely divided metal-doped aluminogallate nanocomposite comprising: [{'sub': 2', '3, 'GaO;'}, {'sub': 2', '3, 'AlO; and'}, 'at least one metal oxide dopant comprising a metal selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Au, Pd, Pt, Ru, Rh, In, Ir, Tl, Ge, and Sn; and, 'mixing a carrier solvent with a bulk metal-doped aluminogallate nanocomposite synthesized by a process selected from the group consisting of co-precipitation, sol-gel, and hydrothermal to form a bulk metal-doped aluminogallate slurry, wherein the bulk metal-doped aluminogallate nanocomposite comprisesatomizing the bulk metal-doped aluminogallate slurry using a collision to produce the finely divided metal-doped aluminogallate nanocomposite;wherein the carrier solvent is at least one selected from the group consisting of deionized water, ethanol, butanol, isopropyl alcohol, diacetone alcohol, diglycol, triglycol, acetone, methyl ethyl ketone, ethyl acetate, butyl acetate, toluene, and xylene.2: The process of claim 1 , wherein the bulk metal-doped aluminogallate is synthesized by a hydrothermal process comprising:adding a precipitating agent to an aqueous solution comprising a gallium salt, an aluminum salt, and a metal dopant salt to form a metal-doped aluminogallate suspension with a pH of 8-12; andheating the metal-doped aluminogallate suspension to a hydrothermal reaction temperature ...

Method for preparing methylchlorosilanes

The invention relates to a method for the direct synthesis of methylchlorosilanes by reacting chloromethane with a contact mass containing silicon, copper catalyst and at least 120 ppm by weight of manganese.

Process For Production of Halosilanes From Silicon-Containing Ternary Intermetallic Compounds

A process for preparing a reaction product including a halosilane includes: contacting an unsaturated hydrocarbyl halide and a ternary intermetallic compound at a temperature of 300° C. to 700° C. to form the reaction product. The ternary intermetallic compound includes copper, silicon and a transition metal. The halosilane in the reaction product has formula R1R—HSiX> where each Ris independently a saturated monovalent hydrocarbyl group, each Ris independently an unsaturated monovalent hydrocarbyl group; each X is independently a halogen atom; subscript m is 1, 2, or 3; subscript n is 0, 1, or 2; subscript o is 0, 1, or 2; and a quantity (m+n+o) is 1, 2, or 3. At least a portion of the unsaturated hydrocarbyl groups in the unsaturated by drocarbyl halide are converted to saturated hydrocarbyl groups (R) in the halosilane. 1. A process for preparing a reaction product comprising a halosilane , where the process comprises contacting an unsaturated hydrocarbyl halide and a ternary intermetallic compound comprising copper , silicon and a transition metal selected from the group consisting of silver , chromium , iron , molybdenum , and rhodium at a temperature from 300° C. to 700° C. to form the reaction product , where the halosilane has general formula RRHSiX , where each Ris independently a saturated monovalent hydrocarbyl group , each Ris independently an unsaturated monovalent hydrocarbyl group; each X is independently a halogen; m is 1 , 2 , or 3; subscript n is 0 , 1 , or 2; subscript o is 0 , 1 , or 2; and a quantity (m+n+o) is 1 , 2 , or 3; where at least a portion of unsaturated hydrocarbyl groups in the unsaturated hydrocarbyl halide are converted saturated hydrocarbyl groups in the halosilane.2. The process of claim 1 , further comprising one or more steps claim 1 , where the one or more steps are selected from:purging and/or treating a reactor containing the ternary intermetallic compound before contacting the unsaturated hydrocarbyl halide and the ternary ...

Hydrogenation Catalysts Comprising a Mixed Oxide and Processes for Producing Ethanol

A process is disclosed for producing ethanol, comprising contacting acetic acid and hydrogen in a reactor in the presence of a catalyst comprising a binder and a mixed oxide comprising cobalt and preferably tin, wherein the mixed oxide is present in an amount from 60 to 90 wt. %, based on the total weight of the catalyst. 119-. (canceled)20. A process for producing ethanol comprising contacting acetic acid and hydrogen in a reactor in the presence of a catalyst comprising a binder , and a mixed oxide comprising cobalt and tin , wherein the total cobalt loading of the catalyst is from 25 to 45 wt. % , based on the total metal content of the catalyst.21. The process of claim 20 , wherein the mixed oxide comprises cobalt(II)-stannate.22. The process of claim 20 , wherein the mixed oxide is present in an amount from 60 to 90 wt. % claim 20 , based on the total weight of the catalyst.23. The process of claim 20 , wherein the total cobalt loading of the catalyst is from 30 to 40 wt. % claim 20 , based on the total metal content of the catalyst.24. The process of claim 20 , wherein the total tin loading of the catalyst is from 40 to 65 wt. % claim 20 , based on the total metal content of the catalyst.25. The process of claim 20 , wherein the total tin loading of the catalyst is from 40 to 55 wt. % claim 20 , based on the total metal content of the catalyst.26. The process of claim 20 , wherein the catalyst has a molar ratio of cobalt to tin from 2:1 to 0.75:1.27. The process of claim 20 , wherein the mixed oxide further comprises nickel.28. The process of claim 27 , wherein the total nickel loading of the catalyst is from 2 to 40 wt. % claim 27 , based on the total metal content of the catalyst.29. The process of claim 20 , wherein the catalyst is substantially free of rhenium claim 20 , ruthenium claim 20 , rhodium claim 20 , palladium claim 20 , osmium claim 20 , iridium claim 20 , platinum claim 20 , and combinations thereof.30. The process of claim 20 , wherein the ...

Process using iron-thallium catalysts in CO hydrogenation

CO hydrogenation process is described utilizing novel thallium-promoted iron catalysts. Mixtures of CO/H 2 are selectively converted to liquid C 6 -C 11 hydrocarbons containing C 6 -C 11 aromatics, alpha olefins and very small amounts of C 23 + hydrocarbon waxes.

Iron-thallium catalysts for use in CO hydrogenation and process of preparing the catalysts

Novel thallium promoted iron catalysts are described as being useful in CO hydrogenation processes utilizing CO/H 2 mixtures for selectively producing C 6 -C 11 liquid hydrocarbons, containing C 6 -C 11 aromatic hydrocarbons and only very small amounts of C 23 + hydrocarbon waxes.

Ligand synthesis

Compounds 1,3,4-(SiMe 3 )(C 6 F 5 )(alkyl)C 5 H 3 are made using a simplified synthetic strategy which is readily scalable. On reaction with a suitable transition metal species, a 1,3,4-(SiMe 3 )(C 6 F 5 )(alkyl)C 5 H 3 molecule provides an organotransition metal complex comprising a 1,2-(C 6 F 5 )(alkyl) substituted cyclopentadienyl ligand, which is active toward olefin polymerization.

Improved ligand synthesis

Compounds 1,3,4-(SiMe3)(C6F5)(alkyl)C5H3 are made using a simplified synthetic strategy which is readily scalable. On reaction with a suitable transition metal species, a 1,3,4-(SiMe3)(C6F5)(alkyl)C5H3 molecule provides an organotransition metal complex comprising a 1,2-(C6F5)(alkyl) substituted cyclopentadienyl ligand, which is active toward olefin polymerization.

Foerfarande och cesium som tillsatsmedel innehaollande katalysator foer direkt syntes av dimetyl-diklorsilan.

catalysts

Method of production of alkylhalosilanes

Изобретение относится к способу получения алкилгалосиланов посредством реакции между элементарным кремнием и алкилгалогенидом при повышенных температурах в присутствии катализатора на основе меди, алюминия и необязательно промоторов. Полное содержание алюминия в реакторе регулируют добавлением в реактор, отдельно от кремния и катализатора, алюминия в виде металлического алюминия, или алюминиевого сплава, или содержащего алюминий сплава кремния, или cодержащего алюминий твердого соединения, или их смесей в количестве от 0,01 до 1 вес.%, из расчета весового отношения алюминия к весу кремния, подаваемого в реактор. Предложенный способ позволяет увеличить реакционную способность и селективность при использовании каталитической системы в данном процессе. 5 з.п.ф-лы, 11 табл. ССбУУГС ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ “” 2 144 923. 57 МК’ С 07Е 7/46 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97115899/04, 19.02.1996 (24) Дата начала действия патента: 19.02.1996 (30) Приоритет: 28.02.1995 МО 950760 (46) Дата публикации: 21.01.2000 (56) Ссылки: СВ 2153697 А1, 29.08.85. 4$ 5068385 АЛ, 26.11.91. ЕЕЕСТКС ГУКМАСЕ СОМЕЕКЕМСЕ РКОСЕЕПМС$, 1990, Е.Оигои$ еЁа|!; З4гисшге апа Вепамочг от МааПигагса! ЭШсоп., р.р.241-247. С. [ агохе ег а!., тЙучепсе ое Спептса| Рогт ор эИсоп приг@ез оп Те Коспо\м Ргосез$ ИЗШсоп. Спет.па.(пЕСопт.), 1992, р.р.151-163. МО 169831 А, 04.05.92. ЗУ 1162200 АЛ, 10.01.96. ЗЦ 181105 А, 15.04.66. (85) Дата перевода заявки РСТ на национальную фазу: 29.09.1997 (86) Заявка РСТ: МО 96/00037 (19.02.1996) (87) Публикация РСТ: М/О 96/26947 (06.09.1996) (98) Адрес для переписки: 103735, Москва, ул.Ильинка, 5/2, Союзпатент, Ивановой О.Ф. (71) Заявитель: Элкем АСА (МО) (72) Изобретатель: Харри Мортен Ронг (МО) (73) Патентообладатель: Элкем АСА (МО) 2144923 С1 КО (54) СПОСОБ ПОЛУЧЕНИЯ АЛКИЛГАЛОСИЛАНОВ (57) Реферат: Изобретение относится к способу получения алкилгалосиланов посредством реакции между ...

Process for producing alkylhalogenosilanes

生产烷基卤代硅烷的方法，包括使硅、硒或碲助催化剂和铜催化剂的物理混合物与烷基卤反应。

Patent RU2019131364A3

ВУ“? 2019131364” АЗ Дата публикации: 07.07.2021 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2019131364/04(061598) 06.03.2018 РСТ/ОВ2018/050567 06.03.2018 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 1703558.5 06.03.2017 СВ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ПРЕДШЕСТВЕННИК СЛОИСТОГО ДВОЙНОГО ГИДРОКСИДА, СПОСОБ ЕГО ПОЛУЧЕНИЯ И КАТАЛИЗАТОРЫ, ПОЛУЧЕННЫЕ ИЗ НЕГО Заявитель: ОХФОРД ЮНИВЕРСИТИ ИННОВЕЙШН ЛИМИТЕД, СВ, ЭсСиДжи КЕМИКАЛЗ КО., ЛТД., ТН 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СО1В 13/14 (2006.01) СО1В 13/36 (2006.01) СОТС 15/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СО1В 13/14, СОЛВ 13/36, СОТС 15/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепе, Соозе, Раеагсв, КОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование ...

Conversion of high-boiling residue of direct process into monosilane

(57)【要約】 【課題】 一般に「直接法」と呼ばれる方法による有機 塩化物とケイ素メタロイドの反応から得られる高沸点残 渣からモノシラン類を製造する改善された方法を提供す る。 【解決手段】 オルガノシランと上記高沸点残渣を含む 混合物を形成し、この混合物を水素ガスの存在下に、触 媒量の、上記高沸点残渣からモノシラン類の形成を促進 するに有効な触媒組成物と接触させることを含む方法。 好ましい触媒組成物は、三塩化アルミニウムを含み、そ の少なくとも一部は直接法及び高沸点残渣の分離の間に その場で形成されてもよい。

Method of producing copper-cathalyzed silicon reaction mass

A copper catalyzed silicon reaction mass for the production of methylchlorosilane which comprises free-flowing powders or particles of silicon metal having spots of a copper-silicon alloy substantially uniformly distributed on the surface of the silicon particles, the copper constituting less than about 2% and preferably about 1.75% by weight of the catalytic mass.

Patent JPH0478564B2

How to Treat Methylchlorosilane By-Products

본 발명은, pH 약 7 이상의 범위, 약 0℃ 이상의 온도에서, 임의로 계면활성제를 포함하는 수성 매질과 임의로 계면활성제를 포함하는, 메틸클로로실란의 제조 중에 생성되는 부산물을 배합시켜서, 구리 및 다른 금속을 고체 상으로 유지하고 그에 따라서 높은 구리 함유량을 갖는 생성물을 얻는 고체 물질을 생성하는 메틸 클로로실란의 제조 중에 생성되는 부산물의 신규 가수분해 방법에 관한 것이다.

Feed composition for alumina production

FIELD: nonferrous metallurgy. SUBSTANCE: invention relates to nonferrous metallurgy and can be used to obtain alumina and associated products by sintering from high-silicon alumina raw materials. The composition of the feed for the production of alumina includes kaolin ore and limestone. The feed additionally contains a carbon-containing additive, and its composition satisfies the following content of raw materials, wt. %: kaolin - 68.5-72.3; limestone - 26.3-28.6; carbon-containing additive 0.5-3.8, the amount of which is determined experimentally according to the controlled parameters of the technological process. EFFECT: increase in the chemical extraction of Al 2 O 3 and an expansion of the raw material base of alumina production due to the use of kaolin ores of various compositions, which is achieved due to the fact that a carbon-containing component is introduced into the feed composition in an amount that provides the best conditions for the formation of the phase composition of the sinter, favorable for subsequent processing. 1 cl, 1 tbl, 25 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 755 789 C1 (51) МПК C01F 7/16 (2006.01) C07F 7/20 (2006.01) C01F 7/38 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07F 7/16 (2021.05) (21)(22) Заявка: 2021104305, 19.02.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 21.09.2021 (45) Опубликовано: 21.09.2021 Бюл. № 27 2 7 5 5 7 8 9 R U (56) Список документов, цитированных в отчете о поиске: Лайнер А.И., Еремин Н.И., Лайнер Ю.А., Певзнер И.З. "Производство глинозема", 2-е изд. М.: Металлургия, 1978. 344 с.; с.317-319. RU 2555741 C1, 10.07.2015. SU 684856 A1, 10.01.1997. RU 2226174 C1, 27.03.2004. RU 2147565 C1, 20.04.2000. CN 106745124 B, 03.07.2018. (54) СОСТАВ ШИХТЫ ДЛЯ ПРОИЗВОДСТВА ГЛИНОЗЁМА (57) Реферат: Изобретение относится к цветной металлургии состава спёка, благоприятного для последующей и может быть использовано для получения ...

Process for preparing methylchlorosilanes

本发明涉及一种通过氯甲烷与含有硅、铜催化剂及10至90ppm锶的接触组合物的反应而直接合成甲基氯硅烷的方法。

Oxidative dehydrogenation process

Compositions comprising Fe/P/Group IIIA components are effective as catalysts in processes to convert organic compounds to compounds having a greater degree of unsaturation.

Processes for obtaining organohalosilane

Improvements to processes for the synthesis of halogenated organosilicon compounds

PROCESS FOR THE PRODUCTION OF ALKYLHALOGENOSILANES

Procédé de production d'alkylhalogénosilanes par synthèse directe, dans lequel un halogénure d'alkyle, de préférence CH3 Cl, est mis en contact avec du silicium, à une température de 250 à 350degre C, en présence d'un système catalytique, comprenant de préférence du Cu comme catalyseur et un promoteur réactionnel, le Zn. La quantité de Ni et V dans le silicium est volontairement ajustée à une valeur inférieure ou égale à 40 ppm, en particulier inférieure ou égale à 30 ppm, de préférence inférieure ou égale à 20 ppm, en agissant sur la quantité de Ni et V apportée par les matières premières utilisées dans l'opération de carboréduction thermique d'une matière première contenant du silicium. Process for the production of alkyl halosilanes by direct synthesis, in which an alkyl halide, preferably CH 3 Cl, is brought into contact with silicon, at a temperature of 250 to 350 deg C, in the presence of a catalytic system, comprising preferably Cu as catalyst and a reaction promoter, Zn. The amount of Ni and V in the silicon is voluntarily adjusted to a value less than or equal to 40 ppm, in particular less than or equal to 30 ppm, preferably less than or equal to 20 ppm, by acting on the amount of Ni and V supplied. by the raw materials used in the thermal carboreduction operation of a raw material containing silicon.

Improvement in the preparation of organo-halosilanes

Process for the production of alkyl halosilanes

Process for the manufacture of phenylchlorosilanes, as well as products according to those obtained by the present process or similar process

Patent FR2398020B1

Process for the preparation of organohalosilanes

PROCESS FOR THE PRODUCTION OF METHYLCHLOROSILANES

A process is proposed for the preparation of methylchlorosilanes by reacting methyl chloride and particulate silicon which has been brought into contact with a mixture of partially oxidised copper and copper formate. A reduction is achieved with regard to the percentage content of remainder comprising the silicon products in the crude methylchlorosilane, the boiling points of which silicon products exceed 70 DEG C under atmospheric pressure, while the disilane, which is contained in this remainder and which can be cleaved to give useful chlorosilane monomer, is not adversely affected.

Process for manufacturing aryl-chlorosilanes

Manufacture of organosilicon compounds

PROCESS FOR THE PREPARATION OF ALKYLHALOSILANES

PROCEDE DE PREPARATION D'ALKYLHALOSILANES QUI COMPREND LA REACTION ENTRE UN HALOGENURE D'ALKYLE ET DU SILICIUM EN POUDRE EN PRESENCE D'UNE QUANTITE EFFICACE D'UN CATALYSEUR CUIVRE-ZINC-ETAIN. APPLICATION A LA FABRICATION DES METHYLCHLOROSILANES. PROCESS FOR THE PREPARATION OF ALKYLHALOSILANES WHICH INCLUDES THE REACTION BETWEEN AN ALKYL HALOGENIDE AND SILICON POWDER IN THE PRESENCE OF AN EFFECTIVE QUANTITY OF A COPPER-ZINC-TIN CATALYST. APPLICATION TO THE MANUFACTURE OF METHYLCHLOROSILANES.

Process for the activation of catalysts and contact masses for the production of alkyl- and arylchlorosilanes and similar substances

Method for producing organohalosilane

Direct synthesis of alkylhalogenosilanes by reaction of an alkyl halide with a silicon contact mass formed from silicon and a copper catalysts and promoter additive

Procédé de préparation d'alkylhalogénosilanes par réaction d'un halogénure d'alkyle, de préférence CH3Cl, avec une masse solide, dite masse de contact, formée de silicium et d'un système catalytique comportant (α) un catalyseur au cuivre, et (β) un groupe d'additifs promoteurs comprenant :- un additif β1 choisi parmi le zinc métallique, un composé à base de zinc et un mélange de ces espèces,- un additif β2 choisi parmi l'étain, un composé à base d'étain et un mélange de ces espèces,- éventuellement un additif β3 choisi parmi le césium, le potassium, le rubidium, le phosphore, un composé dérivé de ces métaux/métalloïdes et un mélange de ces espèces,ledit procédé de synthèse directe étant caractérisé en ce que le catalyseur au cuivre (α) est sous la forme d'un adduct comprenant un halogénure de cuivre et un additif consistant dans un dérivé d'un acide du phosphore.

Patent FR2099232A5

Improvements to processes for the synthesis of halogenated organosilicon compounds

PROCESS FOR THE DIRECT SYNTHESIS OF ALKYLHALOGENOSILANES

Dehydrogenation/dehydrocyclisation catalyst - of nickel/platinum metal-carrier type modified with indium/gallium oxide

Catalyst based on carrier(s) (e.g. Al2O3, opt. treated with HF or hydrolysed in flame, SiO2, MgO, ZrO2, Al silicate or aluminate spinel of group II metal) and 0.01-5 wt. % metal (oxide) (e.g. Ni, Pt, Ru, Pd, IR, Rh, Os) also contains 0.1-10 wt. % (w.r.t. carrier) activity modifier, e.g. In or Ga oxide. This is used in dehydrogenation and dehydrocyclisation of org. cods. contg. CH-CH group(s), esp. paraffins. Modifier imparts improved activity and active life.

PROCESS FOR PASSIVATING THE FINES OF ORGANOCHLOROSILANE REACTOR AND FOR RECOVERING VALUE CHLOROSILANES FROM THE LATTER

On traite des fines de silicium, qui ont été récupérées dans un réacteur d'organochlorosilane, avec HCI ou du chlore élémentaire à une température élevée pour récupérer un chlorosilane et des sels métalliques de valeur. On effectue également la passivation. Silicon fines, which have been recovered in an organochlorosilane reactor, are treated with HCl or elemental chlorine at an elevated temperature to recover valuable chlorosilane and metal salts. Passivation is also carried out.

Process for the preparation of organohalosilanes

Method for producing organohalosilane

Process for the production of AEthylchlorosilanes

Preparation of alkylchlorosilanes

PROCESS FOR THE DIRECT SYNTHESIS OF ALKYLHALOGENOSILANES

Process for preparing methylchlorosilanes

Method for preparing organohalosilanes

The present invention provides a method for increasing the yield of methyldichlorosilane obtained from the reaction of silicon metal with methyl chloride without substantially decreasing the combined yield of methyldichlorosilane and dimethyldichlorosilane. This is achieved by blending the methyl chloride with an amount of hydrogen chloride sufficient to accomplish this without forming significant amounts of undesirable SiCl₄ and/or HSiCl₃. In accordance with a preferred embodiment of the present method the concentration of hydrogen chloride is from 0.1 to about 3 weight percent, based on methyl chloride. Most preferably the hydrogen chloride is present only from the first 50% to about 90% of the methyl chloride addition.

Process for the preparation of organochlorosilanes

Process for the preparation of organochlorosilanes A b s t r a c t Metallic silicon for the Rochow-Synthesis is reduced to particles measuring at least 5 mm in their smallest dimension and 15 mm in their largest dimension, cooling the silicon from a temperature of at least 700°C to at most 120°C within a maximum of 2 seconds, and then ground and reacted.

PROCESS FOR THE DIRECT SYNTHESIS OF ALKYLHALOGENOSILANES

Procédé de préparation d'alkylhalogénosilanes par réaction d'un halogénure d'alkyle avec une masse solide, dite masse de contact, formée de silicium et d'un système catalytique comportant (alpha) un catalyseur au cuivre, et (beta) un groupe d'additifs promoteurs comprenant :- un additif beta1 choisi parmi le zinc métallique, un composé à base de zinc et un mélange de ces espèces,- un additif beta2 choisi parmi l'étain, un composé à base d'étain et un mélange de ces espèces,- éventuellement un additif beta3 choisi parmi le césium, le potassium, le rubidium, le phosphore, un composé dérivé de ces métaux/métalloïdes et un mélange de ces espèces,ledit procédé de synthèse directe étant caractérisé en ce que le catalyseur au cuivre (alpha) est sous la forme de billes d'halogénure cuivreux, lesdites billes présentant les spécifications suivantes :+ un facteur de sphéricité qui se situe dans l'intervalle allant de 0,6 à 1;+ une distribution granulométrique où la valeur de D50 se situe dans l'intervalle allant de 50 à 1500 mum ;+ une texture poreuse qui est égale ou inférieure à 0,2 ml/g pour un diamètre de pores allant de 0,1 à 10 mum ;+ et une coulabilité qui est égale ou supérieure à 8. A process for preparing alkylhalosilanes by reacting an alkyl halide with a solid mass, said contact mass, formed of silicon and a catalyst system comprising (alpha) a copper catalyst, and (beta) a group of promoter additives comprising: - a beta1 additive selected from zinc metal, a zinc-based compound and a mixture of these species, - a beta2 additive selected from tin, a tin-based compound and a mixture thereof. species, - optionally a beta3 additive selected from cesium, potassium, rubidium, phosphorus, a compound derived from these metals / metalloids and a mixture of these species, said direct synthesis method being characterized in that the copper catalyst (alpha) is in the form of cuprous halide beads, said beads having the following ...

Direct catalytic synthesis of dimethyldichlorosilane from methyl chloride and silicon

Dimethyldichlorosilane is produced by reacting methyl chloride with a solid mass of silicone and a catalyst contg. Cu, 30-1000 ppm of Sn and/or Sb and 0.05-2 % of Li, Na, K and/or Rb, the proportions being based on the total wt. of silicone and catalyst. The process gives improved productivity, the max. dcgree of conversion of the silicone.

Process for processing saw residue from the production of silicon wafers

Verfahren zur Aufarbeitung von Sägerückständen aus der Produktion von Siliciumwafern, indem das Polyethylenglykol von den festen Bestandteilen der Slurry mechanisch abgetrennt wird, gekennzeichnet dadurch, dass die festen Bestandteile mit Chlormethan und/oder Dichlormethan und Wasserstoff in Gegenwart von bei der Müller-Rochow-Synthese üblichen Katalysatoren bei Temperaturen von 350 °C bis 650 °C behandelt werden, die gebildeten gasförmigen Methylchlorsilane auf bekannte Weise destillativ aufgetrennt werden, das im Reaktor zurückbleibende Roh-Siliciumcarbid unter oxidierender Atmosphäre auf Temperaturen von 680 °C bis 750 °C erhitzt, anschließend einer Säurewäsche unterworfen und klassiert wird. A method for processing saw residues from the production of silicon wafers by mechanically separating the polyethylene glycol from the solid components of the slurry, characterized in that the solid constituents with chloromethane and / or dichloromethane and hydrogen in the presence of customary in the Müller-Rochow synthesis Catalysts are treated at temperatures of 350 ° C to 650 ° C, the gaseous methylchlorosilanes formed are separated by distillation in a known manner, heated in the reactor remaining crude silicon carbide under oxidizing atmosphere to temperatures of 680 ° C to 750 ° C, then an acid wash subjected and classified.

PROCESS FOR THE PREPARATION OF SUPPORTED BIMETALLIC OR PLURIMETALLIC CATALYSTS BASED ON ONE OR MORE METALS OF GROUP VIII AND AT LEAST ONE METAL OF GROUP IV CATALYSTS OBTAINED AND USES THEREOF

L'INVENTION CONCERNE LA PREPARATION DE CATALYSEURS A BASE DE METAUX DU GROUPE VIII ASSOCIES A AU MOINS UN METAL DU GROUPE IV, DEPOSES SUR UN SUPPORT. A TITRE CARACTERISTIQUE, LE COMPOSE DE METAL DU GROUPE IV EST INTRODUIT SOUS FORME D'HYDROCARBYL-GERMANIUM-ETAIN OU PLOMB. LA TECHNIQUE DE PREPARATION PARTICULIERE UTILISEE PERMET D'OBTENIR DES CATALYSEURS DONT LA SELECTIVITE EST TRES ELEVEE POUR DES REACTIONS PARTICULIERES TELLES QUE HYDROGENATIONS SELECTIVES, HYDRODESULFURATION, ADOUCISSEMENT DES ESSENCES. THE INVENTION CONCERNS THE PREPARATION OF CATALYZERS BASED ON METALS OF GROUP VIII ASSOCIATED WITH AT LEAST ONE METAL OF GROUP IV, DEPOSITED ON A SUPPORT. AS A CHARACTERISTIC, THE METAL COMPOUND OF GROUP IV IS INTRODUCED IN THE FORM OF HYDROCARBYL-GERMANIUM-TIN OR LEAD. THE PARTICULAR PREPARATION TECHNIQUE USED ALLOWS TO OBTAIN CATALYSTS WHOSE SELECTIVITY IS VERY HIGH FOR PARTICULAR REACTIONS SUCH AS SELECTIVE HYDROGENATIONS, HYDRODESULFURATION, SOFTENING OF ESSENCES.

PROCESS FOR PURIFYING ORGANOHALOSILANES

PROCEDE PERMETTANT LA RECUPERATION ET LE RECYCLAGE DES POUDRES RESIDUELLES DES HALOSILANES GAZEUX. IL COMPORTE LES ETAPES SUIVANTES: A.ENVOI D'UN COURANT D'ORGANOHALOSILANES GAZEUX CHARGES DE POUDRE DANS UN RECIPIENT DE FILTRATION 12 CONTENANT UN SYSTEME DE FILTRATION COMPORTANT DES FILTRES 14 EN METAL FRITTE; B.SEPARATION DE LA POUDRE DES ORGANOHALOSILANES GAZEUX EN LES FAISANT PASSER A TRAVERS LES FILTRES 14; C.RECUPERATION DE LA POUDRE EN ARRETANT LE COURANT D'ORGANOHALOSILANES GAZEUX ET EN ENVOYANT UN COURANT DE GAZ A TRAVERS LE FILTRE EN SENS INVERSE DU COURANT D'ORGANOHALISANES GAZEUX. APPLICATION A LA FABRICATION D'ORGANOHALOSILANES. PROCESS ALLOWING THE RECOVERY AND RECYCLING OF THE RESIDUAL POWDERS OF GAS HALOSILANES. IT INCLUDES THE FOLLOWING STEPS: A. SENDING A CURRENT OF GASEOUS ORGANOHALOSILANES CHARGED WITH POWDER INTO A FILTRATION CONTAINER 12 CONTAINING A FILTRATION SYSTEM INCLUDING FILTERS 14 IN SRIED METAL; B. SEPARATION OF THE POWDER FROM THE GASEOUS ORGANOHALOSILANES BY PASSING THEM THROUGH FILTERS 14; C. POWDER RECOVERY BY STOPPING THE GAS ORGANOHALOSILANE CURRENT AND SENDING A GAS CURRENT THROUGH THE FILTER IN THE REVERSE DIRECTION OF THE GAS ORGANOHALIZANES CURRENT. APPLICATION TO THE MANUFACTURE OF ORGANOHALOSILANES.

DIMETILDICLOROSILAN PREPARATION PROCEDURE

Process for producing monomethyldichlorosilane

Process for the treatment of spent metallic reaction masses from the production of organohalosilanes

Direct method for synthesising alkyl halogenosilanes

The inventive method for producing alkyl halogenosilanes by reacting alkyl halide, preferably CH3Cl, with a solid mass, called contact mass, formed by silicon and a catalytic system comprising (α) a copper catalyst and (β) a group of promoter additives containing an additive β1 selected from metallic zinc, a zinc-based compound and the mixture thereof, an additive β2 selected from tin, a tin-based compound of the mixture thereof, if necessary an additive β3 selected from caesium, potassium or rubidium, a compound derived from said metals and the mixture thereof. Said synthesis method is characterised by the following combined items: the copper catalyst (α) is used in the form of a metallic copper, a copper halide or the mixture thereof, the contact mass also contains a complementary promoter additive β4 selected from a phosphoric acid derivative and the mixture thereof.

Prodn. of methyl-chloro-silane esp. di:methyl-di:chloro-silane

The prodn. of methylchlorosilanes (I) comprises reacting chloromethane with Si in the presence of Cu, Zn and V together with Sn, Sb or P.

Method of manufacturing alkylhalosilanes

What is disclosed is a method of controlling a process for the preparation of alkylhalosilanes from silicon and alkylhalides where phosphorous or certain phosphorous compounds are used as promoters to enhance selectivity, overall yields of useable silanes and enhanced silicon metal conversion.

Catalysts for para-ethyltoluene dehydrogenation

Organosilicon compounds

Slurry phase direct synthesis of organohalosilanes from cyclone fines

The present invention is directed to a process for the synthesis of organohalosilane monomers, comprising the steps of (1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with an organohalide of the formula R 1 X in the presence of an additive for a time and at a temperature sufficient to produce organohalosilane monomers having the formulae R 1 SiHX 2 , R 1 2 SiHX, R 1 3 SiX, R 1 SiX 3 , and R 1 2 SiX 2 ; wherein R 1 is a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and (2) recovering said organohalosilane monomers.

Process for the manufacture of alkylhalosilanes and of silicon therefor

Preparation of alkylhalogenosilanes

Method for preparing organohalosilanes

The present invention provides a method for reducing the concentration of methyltrichlorosilane obtained during the reaction of silicon metal with methyl chloride without substantially decreasing the combined yield of methyldichlorosilane, dimethylchlorosilane and dimethyldichlorosilane. The methyl chloride is blended with from 0.05 up to about 44 mole percent of hydrogen, based on combination of methyl chloride and hydrogen. At hydrogen concentrations above about 12 mole percent there is a substantial increase in the methyldichlorosilane content of the reaction product while the concentration of methyltrichlorosilane in the reaction product is maintained below about 4 percent by weight.

Method for conversion of high-boiling residues from direct process to monosilanes

Exhaust gas purification catalyst

Process for the preparation of alkylhalosilanes

Be used to prepare the silicon composition that contains of alkyl halogen silanes

本文公开了一种用于从烷基卤与硅制备烷基卤 硅烷过程的含硅物料组合物，使用磷和某些磷化物做 为促进剂，以提高选择性，有用硅烷的总收率以及提 高金属硅的转化。

Process for the preparation of alkyl halosilanes.

Manufacturing process for halosilanes rich in alkyl substituents

Conversion of high boiling point residue derived from direct method to monosilanes

(57)【要約】 【課題】 一般に「直接法」と呼ばれる方法による有機 塩化物とケイ素メタロイドの反応から得られる高沸点残 渣からモノシラン類を製造する改善された方法を提供す る。 【解決手段】 上記高沸点残渣、オルガノトリクロロシ ラン、及び塩化水素を含む混合物を、触媒量の、上記高 沸点残渣からモノシラン類の形成を促進するに有効な触 媒組成物と接触させることを含む方法。好ましい触媒組 成物は、三塩化アルミニウムを含み、その少なくとも一 部は直接法及び高沸点残渣の分離をおこなっている間に その場で形成される。一般に、本発明方法のモノシラン 生成物は、殆ど専らメチルトリクロロシラン及び四塩化 炭素を含む。

Process forthe preparation ofan amine

A method of preparing a copper catalyzed silicon reaction mass

A copper catalyzed silicon reaction mass for the production of methylchlorosilane which comprises free-flowing powders or particles of silicon metal having spots of a copper-silicon alloy substantially uniformly distributed on the surface of the silicon particles, the copper constituting less than about 2% and preferably about 1.75% by weight of the catalytic mass.

Chloroakdenylsilanes and its method of preparation

Chloroalkenyl silane of formula (I) is prepared by reacting the mixed gas of the cpd. of formula (II) and the cpd. of formula (III) with the metalic silica at 250-350 ≰C, under 1-5 atms. In the formulas, R1 is H, CH3, SiHCl2, SiCl3 or CH2SiCl3; R2 is H or Cl; R3 is H or Cl; R4 is H, CH3 or chloromethyl; R5 is H or C1-4 lower alkyl or CH2CH2Cl. Pref. opt. 1-50% of the acidic whitee earth of spherical micro powder is added in the amt. of 1-50% w.r.t. the amt. of the silica; and copper or copper cpd. as a catalyst is used in 1-20 wt.% w.r.t. the reactant.

Preparation of dialkyl-substituted dihalogenosilanes

Process and catalyst with cesium as an additive for synthesizing directly dimethyldichlorosilane

PRECIS DE LA DIVULGATION: La présente invention concerne un procédé de fabrication de diméthyldichlorosilane, caractérisé en ce que l'on fait réagir du chlorure de méthyle sur une masse de con-tact solide formée de silicium et d'un catalyseur comportant du cuivre ou un composé du cuivre, et en ce que le catalyseur comporte en outre entre environ 30 et 1000 ppm (calculés en étain et/ou antimoine métal) d'un métal choisi parmi l'étain et l'antimoine, ou d'un composé de l'étain et de l'antimoine et entre environ 0,05 et 4% (calculés en césium métal) de césium ou d'un composé du césium par rapport à la masse de contact solide (silicium + catalyseur). La mise en oeuvre de ce procédé permet notamment d'améliorer la productivité, le taux de transformation maximum en silicium et la sélecti-vité en diméthyldichlorosilane.

Method of manufacturing altyl-halosilanes

本文公开了一种用于从烷基卤与硅制备烷基卤硅烷过程的含硅物料组合物，使用磷和某些磷化物做为促进剂，以提高选择性，有用硅烷的总收率以及提高金属硅的转化。

Improvements in or relating to the manufacture of organosilicon compounds

Alkyl- and/or alkyl aryl chlorosilanes are prepared by reacting an aliphatic hydrocarbon with silicon and a chlorosilane of the formula RnSiCl4-n, where n is 0 or 1 and R is an alkyl or phenyl radical, or a mixture of such chlorosilanes at a temperature of from 200 DEG to 600 DEG C. and at a pressure of at least 75 lbs./sq. inch. The preferred reaction temperature range is from 275 DEG to 500 DEG C. The hydrocarbon may be a saturated or unsaturated hydrocarbon, e.g. any hydrocarbon of the series methane to octadecane, ethylene, isobutylene, di-isobutylene, acetylene, butadiene or octadecene or mixtures of these hydrocarbons. The chlorosilane may be silicon tetrachloride and phenyl-, methyl-, ethyl- and octadecyl-trichlorosilane. The silicon may be used in the form of an alloy, e.g. ferrosilicon, or it may contain impurities such as carbon, iron, aluminium or calcium. Preferably the silicon has a particle size of less than 20 mesh per inch. Aluminium chloride, boron trifluoride or boron trichloride may be used to catalyse the reaction, e.g. in a proportion of from 0.1 mol. per cent to 15 mol. per cent based on the total mols. of hydrocarbon and chlorosilane. In the examples: (1) methyl- and ethyl-trichlorosilane and dimethyldichlorosilane are obtained from the reaction of silicon, methane and silicon tetrachloride; (2) ethyl-, propyl- and butyl-trichlorosilanes and dimethyldichlorosilane are obtained as in (1) from diisobutylene; (3), (4) using heptane instead of methane in (1) gives a mixture of methyl and ethyl trichlorosilanes, and a mixture of methyl-, ethyl-, propyl- and butyl-trichlorosilanes; (5) methyldichlorosilane, ethyl trichlorosilane, dimethyldichlorosilane, trimethylchlorosilane and ethylmethyldichlorosilane are obtained from the reaction of silicon, heptane and methyltrichlorosilane; (6), (7) using the procedure of (1) with aluminium chloride and boron chloride respectively as the catalysts, methyltrichlorosilane is formed; (8) ...

Patent EP0138678A3

1. Process for the manufacture of dimethyldichlorosilane by reaction of methyl chloride with a solid contact reactant formed of silicon and a catalyst comprising copper or a copper compound, the said process being characterized in that the catalyst additionally comprises between 30 and 1,000 ppm of at least one metal chosen from tin and antimony (calculated as tin and/or antimony metal) or of a tin and/or antimony compound and between 0.05 and 4% (calculated as caesium metal) of caesium or of a caesium compound, based on the mass of contact solid.

Dry dust removal method in organic chlorosilane production

Dry dust removal method in organic chlorosilane production is provided, in which the detailed steps are as follows: delivering high-temperature flue gas (a) from fluidized bed reactor (I) into inorganic film cross-flow filter (E) to remove dust for the first time; delivering the concentrated dust gas (c) trapped by inorganic film cross-flow filter (II) into bag filter (III) to remove dust for the second time; returning the gas mixture (f) of passing through bag filter (EI) to the air intake of inorganic film cross-flow filter (II); condensing the residual clean gas (b) from the osmotic side of inorganic film in condenser (A), and then rectifying in rectifying column (B) to separate the products of chloromethane (g) and methyl chlorosilane (h) to obtain the product of methyl chlorosilane (h); returning chloromethane to fluidized bed reactor to take part in reaction; retreating the dust (e) trapped by inorganic film cross-flow filter and bag filter, and then returning it to fluidized bed reactor (I) to take part in reaction.

Process for reprocessing hydrolysis residues from methylchlorosilane synthesis

PROCESS FOR THE PREPARATION OF SUPPORTED BIMETALLIC OR PLURIMETALLIC CATALYSTS BASED ON ONE OR MORE GROUP VIII METALS AND AT LEAST ONE GROUP IV METAL OBTAINED CATALYSTS AND USES THEREOF

Process and catalyst with cesium as additive for the direct synthesis of dimethyldichlorosilane

Method for improving efficiency of production of alkylhalosilane

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

A preparation method of alkyldichlorosilanes

알킬클로라이드와, 염화 수소 또는 반응 온도에서 염화 수소를 발생시키는 알킬클로라이드의 혼합물을 구리 촉매하에 금속 규소와 직접 반응시켜 Si-H 결합을 갖는 알킬디클로로실란을 제조하는 방법. A process for producing alkyldichlorosilanes having Si—H bonds by directly reacting a mixture of alkylchloride and hydrogen chloride or alkylchloride which generates hydrogen chloride at a reaction temperature with metal silicon under a copper catalyst.

Process for the preparation of methylchlorosilane

The invention relates to a process for the preparation of methylchlorosilanes by reacting comminuted silicon metal with methyl chloride in the presence of a copper-containing catalyst system and, if appropriate, other known additives. According to the invention, a catalyst system composed of copper(I) oxide, copper(II) oxide and metallic copper is employed, which contains at least 30 % by weight of metallic copper. The advantages of the invention are not only a high selectivity for dimethyldichlorosilane (improved T/D ratio) and high catalyst material productivity, but also a high proportion of 1,1,2-trichlorotrimethyldisilane in the higher-boiling by-products.

Tin containing activated silicon for the direct reaction

An improved Direct Reaction process which comprises reacting an organohalide with an activated silicon composition, the improvement comprising maintaining the composition of the activated silicon so that it comprises, based on the amount of silicon, 0.05-10 wt. % catalyst; an effective amount of promoter, and 0.001-0.1 wt. % tin, wherein the promoter to tin ratio is 10-250. Activated silicon compositions and methods for selecting a catalyst composition also are provided.

Method for production of alkylhalosilanes

The present invention relates to a method for production of alkylhalosilanes by reaction between elemental silicon and an alkylhalide at elevated temperatures in the presence of a copper-base catalyst and optionally promotors. The total aluminium content in the reactor is controlled by adding to the reactor aluminium in the form of metallic aluminium, or an aluminium alloy, or an aluminium-containing silicon alloy or a solid aluminium-containing compound or mixtures thereof in an amount between 0.01 and 1 % by weight calculated as aluminium based on the weight of silicon supplied to the reactor.

Particle size distribution for fluidized-bed process for making alkylhalosilanes

The present invention is an improved process for the reaction of an alkyl halide with particulate silicon in a fluidized-bed process. The improvement comprises controlling the particle size of the silicon within a range of one micron to 85 microns. Preferred is when the particle size of the silicon has a mass distribution characterized by a 10th percentile of 2.1 to 6 microns, a 50th percentile of 10 to 25 microns, and a 90th percentile of 30 to 60 microns. Most preferred is when the particle size mass distribution of the silicon is characterized by a 10th percentile of 2.5 to 4.5 microns, a 50th percentile of 12 to 25 microns, and a 90th percentile of 35 to 45 microns. The process is run in the presence of a catalyst composition comprising copper and other catalysts.