Patent ID: 8058489

Claim:
A process for making CF 3 CFâ•CHF, comprising: i. contacting CHCl 2 CF 2 CF 3 , in a reaction zone in the presence of a catalytically effective amount of dehydrofluorination catalyst to produce CCl 2 â•CFCF 3 ; ii. contacting CCl 2 â•CFCF 3 formed in (i) with hydrogen fluoride (HF) in a reaction zone, optionally in the presence of a fluorination catalyst, to produce CClFâ•CFCF 3 ; iii. contacting CClFâ•CFCF 3 formed in (ii) in a reaction zone with H 2 in the presence of a catalyst comprising a catalytically effective amount of palladium supported on a support selected from the group consisting of chromium oxide, fluorinated chromium oxide, chromium fluoride, aluminum oxide, aluminum fluoride, fluorinated alumina, and mixtures thereof to produce a product mixture comprising CF 3 CFâ•CHF; and iv. recovering CF 3 CFâ•CHF from the product mixture formed in (iii).