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EP0289061A1
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Method for the preparation and application of rhodium catalysts for the hydrogenation of aromatic and other unsaturated compounds under mild conditions.
Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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Filing: 1988-03-10
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Granted: —
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Expires: 2008-03-10
Abstract
Abstract Method for the preparation of catalysts on support materials, such as strontiumtitanate, which serve for the hydrogenation of unsaturated organic compounds such as alkenes, alkynes and aromates, which catalysts consist of rhodium-metal on support, obtained by applying rhodiumcarbonyl-clusters to a support in an inert atmosphere and then pyrolyzing them at a relatively low temperature of for instance 150°C. The material, thus applied to the support is activated by means of a reaction with oxygen, preferably between 0° and 150°C.
Inventors
- 👤 Klaas Timmer
- 👤 Harmen Anne Meinema
- 👤 Eric Jan Bulten
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 20:20
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/46; B01J23/464; B01J37/00; B01J37/12; B01J37/14; C07C5/08; C07C5/10; C07C2521/00; C07C2521/06; C07C2523/00; C07C2523/02; C07C2523/38; C07C2523/40; C07C2523/46
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
71 words
Method for the preparation of catalysts on support materials which serve for the hydrogenation of unsaturated organic compounds, which catalysts consist of rhodium metal on support, obtained by applying rhodium carbonyl clusters to a support in an inert atmosphere (N₂) and then pyrolyzing them at a relatively low temperature (Tmax. 300°C), characterized in that the material which is thus applied to the support is activated by means of reaction with oxygen.
Claim 2
Dependent Claim
71 words
Method for the preparation of catalysts on support materials which serve for the hydrogenation of unsaturated organic compounds, which catalysts consist of rhodium metal on support, obtained by applying rhodium carbonyl clusters to a support in an inert atmosphere (N₂) and then pyrolyzing them at a relatively low temperature (Tmax. 300°C), characterized in that the material which is thus applied to the support is activated by means of reaction with oxygen.
Claim 3
Dependent Claim
24 words
Method according to claim 1, characterized in that the pyrolyzing process takes place at temperatures between 100°C and 300°C, preferably at temperatures around 150°C.
Claim 4
Dependent Claim
30 words
Method according to claims 1 or 2, characterized in that the activation of the catalyst by means of reaction with oxygen preferably takes place at temperatures between 0°C and 150°C.
Claim 5
Dependent Claim
28 words
Method according to claims 1, 2 or 3, characterized in that the quantity of rhodium metal on support preferably amounts to 0.5-2.5 weight percent of the total weight.
Claim 6
Dependent Claim
24 words
Method for the preparation of a catalyst according to claims 1, 2, 3 or 4, characterized in that the support metal is strontium titanate.
Claim 7
Dependent Claim
30 words
Method for the hydrogenation of unsaturated organic compounds, such as alkenes, alkynes and aromates, characterized in that use is made of a catalyst according to one of the claims 1-5.
Claim 8
Dependent Claim
45 words
Method according to claim 6, characterized in that the hydrogenation takes place under mild conditions, that is to say at a hydrogen pressure of approximately 1 atmosphere and at temperatures of 20°C - 70°C in the liquid phase and around 20°C in the gas phase.
Claim 9
Dependent Claim
23 words
Method for the hydrogenation of unsaturated organic compounds according to claims 6 or 7, characterized in that the unsaturated compounds are aromatic compounds.
References Cited (Backward Citations)
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US4271302A
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US4243824A
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FR2493181A1
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