process for the production of hexamethylenediamine by catalytic hydrogenation of adipinsäuredinitril in liquid phase

摘要

1284348 Hexamethylenediamine SOC RHODIATOCE SpA 26 Oct 1970 [7 Nov 1969] 50656/70 Heading C2C Hexamethylenediamine is prepared by feeding hydrogen and adiponitrile into a liquid reaction medium consisting of hexamethylenediamine, water and a caustic alkali in the presence of a finely divided Raney catalyst, the alkali content of the medium being maintained at 0À2-12 moles per kilogram of catalyst, the water content being maintained at 2-130 moles per mole of caustic alkali, and the catalyst content being maintained in exceses of 1 part by weight per 100 parts of liquid reaction medium.