PREPARATION OF ETHYLENE GLYCOL MONOETHYL ETHER ACETATE

摘要

PURPOSE:To obtain the titled compound useful as a solvent in high yield, by the reaction of acetic acid with ethyleneglycolmonoethylether under specific conditions in the presence of a cation exchange resin as a catalyst while eliminating the formed water from the reaction system during the reaction. CONSTITUTION:Acetic acid is reacted with ethyleneglycolmonoethylether in a molar ratio of 1:1-1:2, at 50-100 deg.C, in the presence of a cation exchange resin as a catalyst while eliminating the formed water from the reaction system. The final conversion ratio of acetic acid is adjusted to 80-97%, to give the titled compound useful as a water-soluble solvent having a high boilding point in a wide field, e.g. a water-soluble acrylic resin coating. The formed water may be eliminated by removing the formed water directly from the reaction system under 760-10mm.Hg (absolute) or in the presence of an azeotropic agent in the reaction system.