PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE

摘要

A process is disclosed for making CF3CF-CH2 The process involves (i) contacting CHCl2CF2CF3 in a reaction zone in the presence of a catalytically effective amount of a dehydrofluorination catalyst to produce CCl-CFCF3; (ii) contacting CCl2-CFCF3 with H2 formed in (i) in a reaction zone in the presence of a catalyst comprising a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina fluorided alumina, aluminum fluoride and mixtures thereof, to produce a product mixture comprising CF3CF-CH2, wherein the mole ratio of H2 to CCl250 CFCF3 fed to the reaction zone is between about 1:1 and about 4:1 and (iii) recovering CF3CF-CH2 from the product mixture formed in (ii).