Process for preparing pentafluoroethane

Details Process for preparing pentafluoroethane Process for preparing pentafluoroethane

1996-11-26

1998-11-24

Geist, Gary

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570170, C07C 1908

Patent

active

058410066

ABSTRACT:
Process for preparing pentafluoroethane (125) containing amounts of 115 lower than 0.02% by weight wherein pentafluoroethane is obtained by a dismutation process of tetrafluorochloroethane CF.sub.3 CHClF (HCFC-124) in gaseous phase in the presence of a chrome oxide catalyst (CR.sub.2 O.sub.3) supported on a AlF.sub.3 support, wherein one operates at temperatures from 140.degree.-180.degree. C. for contact times comprised between 15-30 seconds, from >180.degree. C. to 240.degree. C. for contact times between 5 to 15 seconds, from >240.degree. C. to 260.degree. C. for contact times between 1 to 5 seconds, from >260.degree. to 300.degree. C. for contact times between 0.1 to 1 second.

REFERENCES:
patent: 5087329 (1992-02-01), Felix
patent: 5345014 (1994-09-01), Cuzzato
patent: 5346595 (1994-09-01), Clemmer et al.
patent: 5453551 (1995-09-01), Lacroix et al.

Affiliated with

Also associated with

Rating

Process for preparing pentafluoroethane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing pentafluoroethane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing pentafluoroethane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1704708