Patent ID: 7902410
Filing Date: 2011-03-08
Classification: C07C

Abstract:
1. A process for the production of a fluorinated propane comprising the steps of: (a) contacting, in a first reaction stage, a feed stream comprising a fluorinated olefin and a reducing agent with a first amount of catalyst to produce at least a first effluent stream comprising a flurorinated alkane, unreacted fluorinated olefin, and reducing agent, (b) contacting, in one or more additional reaction stages, said first effluent stream with a second amount of catalyst to produce said fluorinated alkane, said second amount of catalyst being present in an amount to achieve a conversion to said fluorinated olefin substantially greater than in the conversion of said fluorinated olefin in said first reaction stage, wherein said fluorinated olefin is a compound of formula (I): and said fluorinated alkane is a compound of formula (II): where: each X is independently Cl, F, I or Br; each Y is independently H, Cl, F, I or Br; each R1 is independently H, Cl, F, I, Br or unsubstituted or halogen substituted methyl or ethyl radical; each R n is 1, 2 or 3; a and b are each 1 or 2, provided that a+b=2; m is 0, 1 or 2; and Z is 0, 1, 2 or 3.