FIELD: household chemistry. SUBSTANCE: distillation is performed by distilling off solvent/added water azeotrope from evaporator. Water is poured into evaporator before polluted solvent is poured in. During the distillation, water is connected returned into evaporator. EFFECT: reduced cost of operation on account of reduced water consumption. 1 dwg
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Authors
Dates
1998-10-20—Published
1995-04-20—Filed