Patent ID: 7285690

Claim:
A process for the manufacture of 1,1,1,3,3-pentafluoropropane and 1,1,1,3,3,3-hexafluoropropane, comprising: (a) reacting HF and at least one halopropene of the formula CX 3 CCl═CClX, wherein each X is independently selected from the group consisting of F and Cl, to produce a product comprising CF 3 CCl═CF 2 and CF 3 CHClCF 3 , wherein said CF 3 CCl═CF 2 and CF 3 CHClCF 3 are produced in the presence of a fluorination catalyst comprising at least one composition selected from the group consisting of (i) compositions comprising ZnCr 2 O 4 and crystalline α-chromium oxide, (ii) compositions comprising a zinc halide and α-chromium oxide and (iii) compositions of (i) or (ii) which have been treated with a fluorinating agent; (b) reacting CF 3 CCl═CF 2 and CF 3 CHClCF 3 produced in (a) with hydrogen to produce a product comprising CF 3 CH 2 CHF 2 and CF 3 CH 2 CF 3 ; and (c) recovering CF 3 CH 2 CHF 2 and CF 3 CH 2 CF 3 from the product produced in (b).