Supported ruthenium catalyst, its preparation and its use in the preparation of optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine

摘要

Optionally substituted cyclohexylamine and optionally substituted dicyclohexylamine can be obtained by the catalytic hydrogenation of optionally substituted aniline, a ruthenium catalyst which is supported in Al2O3 treated with compounds of rare earth metals and of manganese and which has a ruthenium content of 0.05-5% by weight, relative to the total weight of the catalyst, being employed.