FIELD: chemistry.
SUBSTANCE: invention relates to an improved method of producing diamine compounds by hydrogenation of compounds which contain nitrile groups, reaction with hydrogen or a hydrogen-containing gas, in the presence of a Raney nickel based hydrogenation catalyst which contains iron, chromium and zinc as doping elements. The hydrogenation catalyst contains the following, with respect to weight content of metal elements: Al - 2-10%; Fe - 0.3-3%; Cr - 0.5-5%; Zn - 0.5-5%; Ni - the balance up to 100%.
EFFECT: method increases selectivity of the process and reduces formation of impurities.
7 cl, 1 tbl, 6 ex
Authors
Dates
2013-06-10—Published
2009-09-01—Filed