METHOD FOR THE CATALYTIC HYDROGENATION OF NITRILES INTO AMINES IN THE PRESENCE OF A DOPED RANEY NICKEL TYPE CATALYST

摘要

The invention concerns the field of the catalytic reduction of nitriles into amines using Raney catalysts doped by one or more metallic addition elements selected from group IVb of the periodic table. In particular, a method is provided for the hydrogenation of nitriles into amines, characterized in that it consists essentially in selecting a liquid reactive medium and a solvent suitable for the nitrile substrate to be hydrogenated, using at least one alkaline or alkaline-earth metal hydroxide mineral base, and adopting a catalyst with a doping element/Ni ratio of 0.05 to 10 % by weight. The method is especially for use in the hydrogenation of dinitriles into diamines or aminonitriles.