Method for the preparation of 1,1,1,3,3-pentafluoropropene and 1,1,1,3,3-pentafluoropropane
AssigneePCBU Services, Inc.
InventorsJohn Cheng-Ping Qian, Julia Ann Sacarias
Life of this patent
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Abstract
A method for the production of 1,1,1,3,3-pentafluoropropene, and particularly to a method characterized by high conversion, yield and selectivity by contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst. The 1,1,1,3,3-pentafluoropropene then can be reacted with hydrogen in the presence of a metal-containing catalyst to produce 1,1,1,3,3-pentafluoropropane.
Claims17
A method for the production of 1,1,1,3,3-pentafluoropropene which comprises contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst carried by a carbon support, at a temperature in the range of about 300° C. to about 800° C. and recovering the 1,1,1,3,3-pentafluoropropene from the resulting reaction product, wherein the metal-containing catalyst carried by a carbon support is selected from the group consisting of a metal, metal halide, metal oxide, metal oxyhalide and combinations thereof, wherein the metal of the catalyst is selected from the group consisting of Fe, Cu, Ni and Cr.
A method for the production of 1,1,1,3,3-pentafluoropropane comprising (1) contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst carried by a carbon support, at a temperature in the range of about 300° C. to about 800° C. and recovering 1,1,1,3,3,-pentafluoropropene from the resulting reaction product, and (2) contacting the recovered 1,1,1,3,3-pentafluoropropene with hydrogen in the presence of a metal-containing catalyst carried by a carbon support to produce 1,1,1,3,3-pentafluoropropane.
A method for the production of 1,1,1,3,3-pentafluoro-propene which comprises contacting 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane with hydrogen in the presence of a metal-containing catalyst carried by a carbon support, at a temperature in the range of about 300° C. to about 800° C., and recovering the 1,1,1,3,3-pentafluoropropene from the resulting reaction product, wherein the metal-containing catalyst carried by a carbon-support is selected from the group consisting of a metal, metal halide, metal oxide, metal oxyhalide and combinations thereof, wherein the metal of the catalyst consists of a metal selected from the group consisting of Fe, Cu, Ni and Cr.
Dependencies are inferred from the claim text.