FIELD: chemical engineering and petroleum processing. SUBSTANCE: when distilling liquid mixtures in vacuum, vapors are aspirated by evacuation system connected to vacuum pump and constructed in the form of successively connected absorber, phase-separator, and cooler, wherein, for gas- vapor condensation and evacuation, liquid phase with lowest freezing temperature is used as absorbent which is preliminarily separated in phase-separator and additionally cooled to temperature not below freezing temperature. EFFECT: enhanced efficiency of process. 1 dwg
