PROCESS FOR THE CONTINUOUS PREPARATION OF 1,2-PROPYLENE DIAMINE (1,2-PDA) AND DIMETHYLDIETHYLENE TRIAMINE (DMDETA)

摘要

The invention relates to a process for the continuous preparation of 1,2-propylene diamine (1,2-PDA) and dimethyldiethylene triamine (DMDETA) by reacting monoisopropanolamine (MIPOA) with ammonia in the presence of hydrogen and a supported heterogeneous hydrogenation catalyst (catalyst), characterized in that the reaction proceeds in the liquid phase at an absolute pressure in the range from 60 to 170 bar.