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US 6,111,140 AGranted
Ru--Pd halogen-free catalyzers and method for producing cycloaliphatic amines
AssigneeBayer Aktiengesellschaft
InventorsHans-Josef Buysch, Gerhard Darsow, Otto Immel, Reinhard Langer
Life of this patent
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Abstract
Catalysts containing ruthenium and palladium for the hydrogenation of aromatic amines to cycloaliphatic amines. Methods for making and using the catalysts.
Claims20
Catalysts on an alkalized support containing from 0.05 to 10% by weight of Ru and Pd, based on the total weight of the respective catalysts, in a weight ratio of Ru:Pd of from 1:30 to 30:1, wherein they contain no halogen.
Dependencies are inferred from the claim text.