Lewis acid halide catalysts for preparation of polyamines

摘要

A process for selectively preparing predominantly non-cyclic polyalkylene polyamine compounds is disclosed wherein an alkylene polyamine compound is contacted with an alkanolamine compound in the presence of a catalytically effective amount of a Lewis acid halide substance at a temperature of from 200 DEG to 350 DEG C. under a pressure sufficient to maintain the reaction mixture essentially in liquid phase. The polyalkylene polyamine thus formed is recovered from the reaction mixture.