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Extractive distillation process for separating difluoromethane and pentafluoroethane using methylene chloride
Extractive distillation process for separating difluoromethane and pentafluoroethane using methylene chloride
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机译:用二氯甲烷萃取蒸馏分离二氟甲烷和五氟乙烷
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摘要
A process is disclosed for removing chloropentafluoroethane (CFC- 115) from a mixture comprising CFC-115, difluoromethane (HFC-32), pentafluoroethane (HFC-125), or from mixtures of these compounds, by azeotropic or extractive distillation.
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