FIELD: chemical technology. SUBSTANCE: invention relates to a method of synthesis of cheap solvents used for metal defatting and chemical cleansing. Solvents are produced by distillation of high-boiling waste of vinyl chloride manufacture. Trichloroethylene and/or tetrachloroethene are added to waste before distillation to obtain azeotropic mixtures of trichloroethene with dichloroethane and tetrachloroethene with trichloroethane and/or with tetrachloroethane. Invention provides utilization of waste in production of vinyl chloride. EFFECT: improved method of production. 4 ex
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Authors
Dates
2002-08-27—Published
2000-03-03—Filed