VERFAHREN ZUR ZWEISTUFIGEN DESTILLATIVEN ABTRENNUNG VON ALKOHOLEN

摘要

Described is a method of removing C4-C22 alcohols, by distillation under particularly mild conditions, from a mixture of alkyloligoglycosides and unreacted alcohols used in the preparation of the alkyloligoglycosides. In the first stage, a film evaporator is used, and in the second stage a worm-type heat exchanger. The alkyloligoglycosides obtained have superior colour characteristics and contain smaller amounts of side-products.