Use of thermally treated supported supported cobalt catalysts for the hydrogenation of nitroaromatics

摘要

The invention relates to the use of thermally treated supported cobalt catalysts for the hydrogenation of nitroaromatic compounds, wherein the cobalt catalyst was prepared by in situ immobilization of a cobalt-amine complex on an inorganic porous support followed by pyrolysis, and wherein in the cobalt used Amine complex cobalt is bound to an aromatic or heterocyclic nitrogen ligand L, wherein the nitrogen ligand is selected so that it forms a poly-aromatic structure with the cobalt atom.