Process for the preparation of chlorosubstituted aromatic amines and of catalysts.

摘要

Chloro-substituted aromatic amines are prepared by hydrogenation of chloro-substituted aromatic nitro compounds in the presence of a catalyst which contains platinum and nickel and/or cobalt on an active carbon support, the platinum having been simultaneously deposited and reduced on the active carbon support in the preparation of the catalyst. Catalysts of this type are furthermore prepared, and also catalysts which contain noble metals on an active carbon support, it also being possible for the latter to be used for the reduction of nitronaphthalenes or nitrotoluenes.