Patent ID: 7722781

Claim:
A process for the manufacture of 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene comprising; (a) dehydrofluorinating pentafluoropropane consisting essentially of 1,1,1,2,3-pentafluoropropane in the presence of a dehydrofluorination catalyst to produce a product mixture comprising 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene; and (b) recovering said 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene from the product mixture produced in (a); wherein said 1,3,3,3-tetrafluoropropene is recovered from the product mixture as a HF/1,3,3,3-tetrafluoropropene azeotrope.