Purification of chlorotetraflouroethane by extractive distillati

Details Purification of chlorotetraflouroethane by extractive distillati Purification of chlorotetraflouroethane by extractive distillati

1998-01-30

1999-07-13

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 68, 203 70, 570178, B01D 340, C07C 17386

Patent

active

059221755

ABSTRACT:
A process for the purification of 1-chloro-1,2,2,2-tetrafluoroethane (F124) containing 1,2-dichlorotetrafluoroethane (F114) and/or 1,1-dichlorotetrafluoroethane (F114a). The F124 to be purified is subjected to extractive distillation, the extractant being chosen from C.sub.5 -C.sub.8 aliphatic or cycloaliphatic hydrocarbons and C.sub.4 -C.sub.8 perfluoroalkyl halides.

REFERENCES:
patent: 4898645 (1990-02-01), Voigt et al.
patent: 4944846 (1990-07-01), Manzer et al.
patent: 5129997 (1992-07-01), Schottle et al.
patent: 5200431 (1993-04-01), Dattani et al.
French Search Report (Oct. 6, 1997).

Affiliated with

Also associated with

Rating

Purification of chlorotetraflouroethane by extractive distillati does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purification of chlorotetraflouroethane by extractive distillati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purification of chlorotetraflouroethane by extractive distillati will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2272739