Patent ID: 6198010
Filing Date: 2001-03-06
Classification: B01J,C07C

Abstract:
A method for producing 1,1,1,3,3-pentafluoropropane, comprising:reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in a gas phase in the presence of a first fluorination catalyst to produce 1-chloro-3,3,3-trifluoropropene; andfluorinating said 1-chloro-3,3,3-trifluoropropene in a liquid phase by hydrogen fluoride in the presence of a second fluorination catalyst to produce said 1,1,1,3,3-pentafluoropropane,wherein said second fluorination catalyst comprises at least one compound selected from the group consisting of antimony pentachloride, antimony pentabromide, antimony pentaiodide, antimony pentafluoride, antimony trichloride, antimony tribromide, antimony triiodide, and antimony trifluoride.