Patent US3737728A successfully refreshed from Google Patents.
EP0053818B1
Expired / Lapsed
EP
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Process for the preparation of cyclohexyl amines by hydrogenation of aromatic amines
Assignee: BASF SE
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Filing: 1981-12-04
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Granted: 1985-05-08
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Expires: 2001-12-04
Abstract
Abstract Aromatic amines (anilines) are obtained directly or via the corresponding cycloaliphatic amines by an aminating/hydrogenating reaction of phenols with ammonia and hydrogen over a supported palladium catalyst which also contains elements from group 1b, 2b or 7b of the periodic table as well as iron, cobalt or nickel, as such or in the form of their compounds, and, preferably, an inorganic base, said catalysts also having dehydrogenating properties.
Inventors
- 👤 Norbert Dr. Goetz
- 👤 Peter Dr. Jacobs
- 👤 Leopold Dr. Hupfer
- 👤 Herbert Dr. Toussaint
- 👤 Wolfgang Dr. Reiss
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 12:49
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/14; C07C209/18; C07C209/68; C07C209/70; C07C209/72; B; B01; B01J; B01J21/00; B01J21/005; B01J23/00; B01J23/005; B01J23/38; B01J23/40; B01J23/44; B01J23/54; B01J23/56; B01J23/58; B01J23/63; B01J23/70; B01J23/89
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A process for the preparation of a cycloaliphatic amine by hydrogenating an aromatic amine in the presence of a hydrogenation catalyst, wherein a supported catalyst is used which comprises, as carrier, aluminium oxide or an aluminium oxide-containing compound, palladium and a basic compound and/or an element of group I B, 11 B or VII B, iron, cobalt or nickel, and the hydrogenation is carried out in the presence of ammonia under a pressure of at least 100 bar.
Claim 2
Dependent Claim
78 words
A process for the preparation of a cycloaliphatic amine by hydrogenating an aromatic amine in the presence of a hydrogenation catalyst, wherein a supported catalyst is used which comprises, as carrier, aluminium oxide or an aluminium oxide-containing compound, palladium and a basic compound and/or an element of group I B, 11 B or VII B, iron, cobalt or nickel, and the hydrogenation is carried out in the presence of ammonia under a pressure of at least 100 bar.
Claim 3
Dependent Claim
27 words
A process as claimed in claim 1, wherein the catalyst contains, as basic compound, an oxide, hydroxide or carbonate of an alkali metal or alkaline earth metal.
Claim 4
Dependent Claim
23 words
A process as claimed in claim 1, wherein the catalyst contains, as basic compound, an oxide, hydroxide or carbonate of a rare-earth metal.
Claim 5
Dependent Claim
14 words
A process as claimed in claim 1, wherein the catalyst contains a magnesium compound.
Claim 6
Dependent Claim
18 words
A process as claimed in claim 1, wherein the catalyst contains a praseodymium/neodymium compound or a cerium compound.
References Cited (Backward Citations)
No citation records indexed.
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