SEPARATION OF TERTIARY CHELATING POLYAMINES

摘要

Tertiary chelating polyamines are separated and purified from their complex mixtures by selective complexation with metal salts wherein the metal is one selected from the group consisting of sodium, magnesium, iron, zinc, cadmium and mercury. The pure polyamines are thereafter recovered by destabilization of the complex. This invention is particularly useful for separating N-peralkylated commercial polyamine mixtures.