RU98122116A - METHOD FOR PRODUCING CATALYST - Google Patents

METHOD FOR PRODUCING CATALYST

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Publication number
RU98122116A
RU98122116A RU98122116/04A RU98122116A RU98122116A RU 98122116 A RU98122116 A RU 98122116A RU 98122116/04 A RU98122116/04 A RU 98122116/04A RU 98122116 A RU98122116 A RU 98122116A RU 98122116 A RU98122116 A RU 98122116A
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RU
Russia
Prior art keywords
materials
catalytically active
range
active components
carrier
Prior art date
Application number
RU98122116/04A
Other languages
Russian (ru)
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RU2207906C2 (en
Inventor
Клайн Харальд
Лейрер Йюрген
Домесле Райнер
Локс Эгберт
Кройцер Томас
Original Assignee
Дегусса Акциенгезельшафт
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Priority claimed from DE19753738A external-priority patent/DE19753738A1/en
Application filed by Дегусса Акциенгезельшафт filed Critical Дегусса Акциенгезельшафт
Publication of RU98122116A publication Critical patent/RU98122116A/en
Application granted granted Critical
Publication of RU2207906C2 publication Critical patent/RU2207906C2/en

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Claims (13)

1. Способ получения катализатора, имеющего на инертном носителе каталитически активный слой из обладающих высокоразвитой поверхностью, высокодисперсных материалов и каталитически активных компонентов, путем нанесения каталитически активных компонентов на высокодисперсные материалы, приготовления покрывной дисперсии из этих материалов и ее нанесения на носитель, отличающийся тем, что он включает следующие стадии: а) пропитку порошковой смеси из предусмотренных для этих целей высокодисперсных материалов раствором из соединений-предшественников каталитически активных компонентов по методу пропитки объема пор, причем соединения-предшественники адсорбируют на по меньшей мере одном из высокодисперсных материалов; б) приготовление водной покрывной дисперсии с использованием пропитанной порошковой смеси; в) нанесение полученной таким путем дисперсии на носитель и г) сушку и кальцинирование нанесенного слоя.1. A method of producing a catalyst having a catalytically active layer from a highly developed surface, highly dispersed materials and catalytically active components on an inert carrier, by applying catalytically active components to highly dispersed materials, preparing a coating dispersion of these materials and applying it to a carrier, characterized in that it includes the following stages: a) impregnation of the powder mixture from the highly dispersed materials provided for these purposes with a solution of pre-compounds estvennikov catalytically active components on a method of pore volume impregnation, wherein the precursor compounds are adsorbed onto at least one of finely divided materials; b) preparing an aqueous coating dispersion using an impregnated powder mixture; c) applying the dispersion thus obtained on a carrier; and d) drying and calcining the applied layer. 2. Способ по п. 1, отличающийся тем, что по меньшей мере один из высокодисперсных материалов имеет изоэлектрическую точку в пределах 6 - 10 и что в качестве соединений-предшественников каталитически активных компонентов применяют анионные соли металлов платиновой группы Периодической системы элементов, которые после пропитки закрепляют термическим путем на материалах носителей. 2. The method according to p. 1, characterized in that at least one of the finely dispersed materials has an isoelectric point in the range of 6-10 and that anionic metal salts of the platinum group of the Periodic system of elements that, after impregnation, are used as precursor compounds of catalytically active components thermally fixed on carrier materials. 3. Способ по п. 1, отличающийся тем, что по меньшей мере один из высокодисперсных материалов имеет изоэлектрическую точку в пределах 6 - 10 и что в качестве соединений-предшественников каталитически активных компонентов применяют анионные комплексные соединения металлов платиновой группы Периодической системы элементов и что из пропитанных материалов носителей без закрепления термическим путем соединений-предшественников приготавливают водную, покрывную дисперсию, имеющую значение рН на 1-3 единицы меньше указанной изоэлектрической точки, предпочтительно в пределах 4 - 8. 3. The method according to p. 1, characterized in that at least one of the finely dispersed materials has an isoelectric point in the range of 6-10 and that anionic metal complex compounds of the platinum group of the Periodic system of elements are used as precursor compounds of catalytically active components and that of impregnated carrier materials without thermally fixing the precursor compounds prepare an aqueous coating dispersion having a pH value of 1-3 units less than the specified isoelectric point Ki, preferably in the range of 4 to 8. 4. Способ по п. 2 или 3, отличающийся тем, что количество растворителя при пропитке объема пор выбирают в пределах 40 - 90, предпочтительно 50 - 70% водопоглощающей способности порошковой смеси. 4. The method according to p. 2 or 3, characterized in that the amount of solvent when impregnating the pore volume is selected in the range of 40 - 90, preferably 50 - 70% of the water absorption capacity of the powder mixture. 5. Способ по п. 4, отличающийся тем, что в качестве высокодисперсных материалов применяют по меньшей мере один материал из группы, включающей оксид алюминия, оксид церия, оксид циркония, оксид титана либо смешанные оксиды этих материалов или диоксид кремния. 5. The method according to p. 4, characterized in that at least one material from the group consisting of alumina, cerium oxide, zirconium oxide, titanium oxide or mixed oxides of these materials or silicon dioxide is used as highly dispersed materials. 6. Способ по п. 5, отличающийся тем, что в качестве анионных комплексных соединений металлов платиновой группы применяют хлориды или анионные соли в комплексе с алканоламинами либо смеси указанных материалов. 6. The method according to p. 5, characterized in that as the anionic complex compounds of the platinum group metals, chlorides or anionic salts in combination with alkanolamines or a mixture of these materials are used. 7. Способ по п. 6, отличающийся тем, что в качестве еще одного высокодисперсного материала применяют по меньшей мере один из цеолитов с мольным соотношением диоксид кремния/оксид алюминия выше 50. 7. The method according to p. 6, characterized in that as another finely dispersed material, at least one of the zeolites with a molar ratio of silicon dioxide / alumina above 50 is used. 8. Способ по п. 7, отличающийся тем, что готовый нанесенный на носитель слой восстанавливают при температурах выше 300°С в токе водородсодержащего газа. 8. The method according to p. 7, characterized in that the finished layer deposited on the carrier is restored at temperatures above 300 ° C in a stream of hydrogen-containing gas. 9. Способ по п. 1, отличающийся тем, что по меньшей мере один из высокодисперсных материалов имеет изоэлектрическую точку в пределах от 2 до 7 и что в качестве соединений-предшественников каталитически активных компонентов применяют катионные комплексные соединения металлов платиновой группы Периодической системы элементов, которые после пропитки закрепляют термическим путем на материалах носителей. 9. The method according to p. 1, characterized in that at least one of the finely dispersed materials has an isoelectric point in the range from 2 to 7 and that cationic complex compounds of platinum group metals of the Periodic system of elements are used as precursor compounds of catalytically active components, which after impregnation, they are thermally fixed on carrier materials. 10. Способ по п. 1, отличающийся тем, что по меньшей мере один из высокодисперсных материалов имеет изоэлектрическую точку в пределах 2 - 7 и что в качестве соединений-предшественников каталитически активных компонентов применяют катионные комплексные соединения металлов платиновой группы Периодической системы элементов и что из пропитанных материалов носителей без закрепления термическим путем соединений-предшественников приготавливают водную покрывную дисперсию, имеющую значение рН на 1-5 единиц меньше указанной изоэлектрической точки, предпочтительно в пределах 7 - 9. 10. The method according to p. 1, characterized in that at least one of the finely dispersed materials has an isoelectric point in the range of 2 to 7 and that cationic metal complex compounds of the platinum group of the Periodic system of elements are used as precursor compounds of catalytically active components, and that of impregnated carrier materials without thermally fixing the precursor compounds, an aqueous coating dispersion is prepared having a pH value of 1-5 units less than the indicated isoelectric point and preferably in the range 7 - 9. 11. Способ по п. 9 или 10, отличающийся тем, что количество растворителя при пропитке объема пор выбирают в пределах 40 - 90, предпочтительно 50 - 70% водопоглощающей способности порошковой смеси. 11. The method according to p. 9 or 10, characterized in that the amount of solvent when impregnating the pore volume is selected in the range of 40 - 90, preferably 50 - 70% of the water absorption capacity of the powder mixture. 12. Способ по п. 11, отличающийся тем, что в качестве высокодисперсных материалов применяют по меньшей мере один материал из группы, включающей оксид титана, оксид церия, оксид циркония и диоксид кремния либо смешанные оксиды этих элементов. 12. The method according to p. 11, characterized in that at least one material from the group comprising titanium oxide, cerium oxide, zirconium oxide and silicon dioxide or mixed oxides of these elements are used as highly dispersed materials. 13. Способ по п. 12, отличающийся тем, что в качестве катионных комплексных соединений металлов платиновой группы применяют тетраамминные комплексы, нитраты либо их смеси. 13. The method according to p. 12, characterized in that tetraammine complexes, nitrates, or mixtures thereof are used as cationic complex compounds of the platinum group metals.
RU98122116/04A 1997-12-04 1998-12-03 Catalyst preparation method RU2207906C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19753738A DE19753738A1 (en) 1997-12-04 1997-12-04 Process for producing a catalyst
DE19753738.3 1997-12-04

Publications (2)

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RU98122116A true RU98122116A (en) 2000-09-27
RU2207906C2 RU2207906C2 (en) 2003-07-10

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US (1) US6342465B1 (en)
EP (1) EP0920913B1 (en)
JP (1) JP4028939B2 (en)
KR (1) KR100567146B1 (en)
CN (1) CN1124898C (en)
AR (1) AR016707A1 (en)
AT (1) ATE353030T1 (en)
AU (1) AU733354B2 (en)
BR (1) BR9805160B1 (en)
CA (1) CA2255278C (en)
CZ (1) CZ397098A3 (en)
DE (2) DE19753738A1 (en)
MY (1) MY133077A (en)
PL (1) PL330064A1 (en)
RU (1) RU2207906C2 (en)
TR (1) TR199802528A3 (en)
TW (1) TW492894B (en)
ZA (1) ZA9811073B (en)

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