Method of making 1,1,1-trifluoroethane

Details Method of making 1,1,1-trifluoroethane Method of making 1,1,1-trifluoroethane

2006-07-04

2006-07-04

Richter, Johann (Department: 1621)

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

Organic compounds

Halogen containing

C570S123000, C570S161000, C570S163000, C570S164000, C570S165000, C570S166000, C570S167000, C570S168000

Reexamination Certificate

active

07071368

ABSTRACT:
A process for producing 1,1,1-trifluoroethane (HFC-143a) which process comprises reacting hydrogen fluoride with vinylidene chloride along with one or more of 1,1,-dichloro-1-fluoroethane (HCFC-141b), 1-chloro-1,1-difluoroethane (HCFC-142b) and 1,1,1-trichloroethane (HCC-140a) in the presence of pentavalent antimony as a fluorination catalyst under conditions to produce 1,1,1-trifluoroethane (HFC-143a), generally in yields of 90% or more.

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