Catalisador multimetálico e processo para a preparação de aminas aromáticas substituídas

摘要

Multi-metal catalyst containing iridium and at least one doping element on a support uses at least one element chosen from manganese, cobalt, iron, nickel, copper or ruthenium as the doping agent for iridium. The preparation of substituted aromatic amines by hydrogenating the corresponding substituted aromatic nitro compounds in the presence of the above catalyst is also claimed.