Process for preparing 1,1,1-trifluoro-2-chloroethane

Details Process for preparing 1,1,1-trifluoro-2-chloroethane Process for preparing 1,1,1-trifluoro-2-chloroethane

C - Chemistry, Metallurgy

07

C

C07C 19/08 (2006.01) C07C 17/08 (2006.01) C07C 17/21 (2006.01)

Patent

CA 2104030

- 1 - ABSTRACT In the preparation of 1,1,1-trifluoro-2-chloroethane (HCFC 133a) by means of hydrofluorination in the gas phase of tri- chloroethylene (TCE) in the presence of a carried catalyst based on Cr2O3 it is possible to prolong the catalyst life by feeding to the hydrofluorination reactor, along with trichloro- ethylene, little amounts (7-25 mols % calculated on the mixt- ure with trichloroethy1ene) of 133a.

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