Method for purification of 1,1,1,2-tetrafluoroethane

Details Method for purification of 1,1,1,2-tetrafluoroethane Method for purification of 1,1,1,2-tetrafluoroethane

1992-10-15

1995-08-22

Siegel, Alan

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

Organic compounds

Halogen containing

570166, 570169, C07C 1738

Patent

active

054441714

ABSTRACT:
In the production of 1,1,1,2-tetrafluoroethane by reacting trichloroethylene with hydrogen fluoride, crude 1,1,1,2-tetrafluoroethane is highly purified by a method comprising subjecting the crude 1,1,1,2-tetrafluoroethane to preliminary purification to remove hydrogen chloride to a concentration of not higher than 2%, and bring the preliminarily purified 1,1,1,2-tetrafluoroethane containing one or more unsaturated impurities and hydrogen fluoride in an amount at least equimolar to the unsaturated impurities into contact with a fluorination catalyst in a vapor phase to decrease the content of the unsaturated impurities.

REFERENCES:
patent: 4158675 (1979-06-01), Potter

Affiliated with

Also associated with

Rating

Method for purification of 1,1,1,2-tetrafluoroethane does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for purification of 1,1,1,2-tetrafluoroethane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for purification of 1,1,1,2-tetrafluoroethane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2142726