C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 209/72 (2006.01) B01J 23/46 (2006.01) B01J 35/10 (2006.01)
Patent
CA 2430461
The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains ruthenium as active metal. The catalyst support of the catalyst to be used according to the invention has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm. The process is suitable in particular for hydrogenating methylenedianiline to form bis(p-aminocyclohexyl)methane having a trans-trans isomeric component of 15 - 25%.
Burkhardt Werner
Finke Norbert
Grunert Juergen
Haas Thomas
Jaeger Bernd
Degussa Ag
Evonik Degussa Gmbh
Marks & Clerk
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