Patent ID: 7405327
Filing Date: 2008-07-29
Classification: C07C,C07D,C08G,Y02P

Abstract:
1. A process for the continuous preparation of an amine, the process comprising: reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in a range from 60 to 300° C. in the presence of a copper-containing catalyst, wherein a catalytically active composition of the catalyst prior to reduction with hydrogen comprises: from 20 to 85% by weight of aluminum oxide (Al from 1 to 70% by weight of oxygen-containing compounds of copper, calculated as CuO; from 0 to 50% by weight of oxygen-containing compounds of magnesium, calculated as MgO, oxygen-containing compounds of chromium, calculated as Cr from 0 to 1% by weight of oxygen-containing compounds of nickel, calculated as NiO, based on the oxygen-containing compounds of copper, calculated as CuO, wherein the catalyst is prepared by coprecipitation of all the components, and the reaction is carried out isothermally in the gas phase in a tube reactor.