METHOD FOR PURIFICATION OF GLYCOLIC SOLUTION

摘要

FIELD: purification of glycolic solutions. SUBSTANCE: initially water is pumped into glycolic solution to be purified. Quantity of water is so that it enables separating into layers thus prepared mixture into hydrocarbon phase and into glycolic phase. Hydrocarbon phase is separated of glycolic phase. Said glycolic phase is affected by desalting (e.g. by electodialysis) followed by concentration which takes place by strippering with vapor. EFFECT: improved efficiency of the method.