Compositions including olefin and hydrofluoroalkane
AssigneeThe Chemours Company Fc, LLC
InventorsXuehui Sun, Mario Joseph Nappa, Karl Krause
Life of this patent
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Abstract
A method hydrofluorinates an olefin of the formula: RCX=CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCXHCFYZ, where X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C1-C6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C1-C6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo. The method includes reacting the olefin with HF in the vapor phase, in the presence of SbF5, at a temperature ranging from about −30° C. to about 65° C. and compositions formed by the process.
Claims20
A composition comprising:
- a mixture comprising HF, SbF5, olefin, and a hydrofluoroalkane;
- wherein the olefin and the hydrofluoroalkane are selected from:
- a) the olefin is (Z)-1-chloro-3,3,3-trifluoropropene or (E)-1-chloro-3,3,3-trifluoropropene and the hydrofluoroalkane is 3-chloro-1,1,13-tetrafluoropropane;
- b) the olefin is 1-chloro-2,3,3,3-tetrafluoropropene and the hydrofluoroalkane is 1,1,1,2,2-pentafluoro-3-chloropropane and 1,1,1,2,3-pentafluoro-3-chloropropane;
- c) the olefin is 2,3,3,3-tetrafluoropropene and the hydrofluoroalkane is 1,1,1,2,2-pentafluoropropane;
- and
- d) the olefin is 1,3,3,3-tetrafluoropropene and the hydrofluoroalkane is 1,1,1,3,3-pentafluoropropane;
- and
- wherein the SbF5 is present in an amount in the range of about 2% to about 30%, by weight of the mixture.
Dependencies are inferred from the claim text.