RU95105319A - Method of purification of pentafluoroethane from pentafluorochloroethane impurity
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Method of purification of pentafluoroethane from pentafluorochloroethane impurity
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RU95105319A
RU95105319ARU95105319/04ARU95105319ARU95105319ARU 95105319 ARU95105319 ARU 95105319ARU 95105319/04 ARU95105319/04 ARU 95105319/04ARU 95105319 ARU95105319 ARU 95105319ARU 95105319 ARU95105319 ARU 95105319A
Товарищество с ограниченной ответственностью Научно-техническая фирма "Комкон"
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Application filed by Товарищество с ограниченной ответственностью Научно-техническая фирма "Комкон"filedCriticalТоварищество с ограниченной ответственностью Научно-техническая фирма "Комкон"
Priority to RU95105319/04ApriorityCriticalpatent/RU95105319A/en
Publication of RU95105319ApublicationCriticalpatent/RU95105319A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
FIELD: chemical technology. SUBSTANCE: invention relates to method of purification of pentafluoroethane from pentafluorochloroethane impurity by extractive rectification. 1,1,2,2-Tetrafluorochloroethane or its mixture with perfluorocyclobutane is used as separating agent. EFFECT: improved method of purification. 1 tbl
Claims (1)
Изобретение относится к способу очистки пентафторэтана от примеси пентафторхлорэтана экстрактивной ректификацией. В качестве разделяющего агента используют 1,1,2,2-тетрафторхлорэтан или его смесь с перфторциклобутаном.The invention relates to a method for purifying pentafluoroethane from an impurity of pentafluorochloroethane by extractive distillation. 1,1,2,2-tetrafluorochloroethane or its mixture with perfluorocyclobutane is used as a separating agent.
RU95105319/04A1995-04-071995-04-07Method of purification of pentafluoroethane from pentafluorochloroethane impurity
RU95105319A
(en)
Method for inhibition of hydrolysis of dimethylformamide or dimethyl acetamide in processes of isolation of diene hydrocarbons by extractive rectification