USE OF THERMALLY-TREATED SUPPORTED COBALT CATALYSTS COMPRISING A POLYCYCLIC AROMATIC STRUCTURE CONSISTING OF NITROGEN LIGANDS FOR HYROGENATING AROMATIC NITRO COMPOUNDS

摘要

The invention relates to the use of thermally-treated supported cobalt catalysts for hydrogenating aromatic nitro compounds, the cobalt catalyst being produced by the in situ immobilisation of a cobalt-amine complex on an inorganic porous support and by subsequent pyrolysis. In the cobalt-amine complex that is used, cobalt is present in the form of a bond to an aromatic or heterocyclic nitrogen ligand L, said nitrogen ligand being selected so as to form a polycyclic aromatic structure with the cobalt atom after pyrolysis.