METHOD OF MAKING 1,1,1-TRIFLUOROETHANE

摘要

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-l-fluoroethane (HCFC-141b), l-chloro-l,l-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.