Patent ID: 7659436

Claim:
A process for the manufacture of at least one compound selected from the group consisting 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 a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper atoms, and (ii) a chromium-containing composition of (i) which has been treated with a fluorinating agent; (b) reacting CF 3 CCl═CF 2 , CF 3 CHClCF 3 or both CF 3 CCl═CF 2 and CF 3 CHClCF 3 produced in (a) with hydrogen, optionally in the presence of HF, to produce a product comprising at least one compound selected from the group consisting of CF 3 CH 2 CHF 2 and CF 3 CH 2 CF 3 ; and (c) recovering at least one compound selected from the group consisting of CF 3 CH 2 CHF 2 and CF 3 CH 2 CF 3 from the product produced in (b).