A process for the purification of pentafluoroethane by removing chloropentafluoroethane therefrom which comprises adding to the impure pentafluoroethane a component which undergoes a non-ideal interaction with chloropentafluoroethane and/or with the azeotrope of chloropentafluoroethane and pentafluoroethane such that the volatility of chloropentafluoroethane and/or the azeotrope of chloropentafluoroethane and pentafluoroethane relative to bulk pentafluoroethane is increased and distilling the mixture.
申请公布号
WO9527689(A1)
申请公布日期
1995.10.19
申请号
WO1995GB00672
申请日期
1995.03.27
申请人
IMPERIAL CHEMICAL INDUSTRIES PLC;EWING, PAUL, NICHOLAS;CORR, STUART;MARTIN, JOHN, STUART;WATSON, MICHAEL, JOHN
发明人
EWING, PAUL, NICHOLAS;CORR, STUART;MARTIN, JOHN, STUART;WATSON, MICHAEL, JOHN