Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries, Ltd.
Takehide Tsuda
Nobuyoshi Iwashita
Satoshi Komatsu
Satoshi Koyama
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
The present invention is directed to a process for the purification of 1,1,1-trifluoro-2-chloroethane which comprises the steps of cooling a mixture comprising hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane to a temperature below 7°C, liquid-separating the mixture into an upper liquid phase rich in hydrogen fluoride and a lower liquid phase rich in 1,1,1-trifluoro-2-chloroethane, and recovering 1,1,1-trifluoro-2-chloroethane containing a lesser amount of hydrogen fluoride from the lower liquid phase. The 1,1,1-trifluoro-2-chloroethane obtained can be used as a cooling medium and as a raw material in the preparation of 1,1,1,2-tetrafluoroethane and trifluoroethanol.
CA002361985A1991-04-151992-04-14Process for purification of 1,1,1-trifluoro-2-chloroethane
Expired - Fee RelatedCA2361985C
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