Purification of 1,1,1,2-tetrafluoroethane

Details Purification of 1,1,1,2-tetrafluoroethane Purification of 1,1,1,2-tetrafluoroethane

C - Chemistry, Metallurgy

07

C

C07C 19/08 (2006.01) B01D 53/02 (2006.01) B01D 53/04 (2006.01) B01J 20/18 (2006.01) C07C 17/06 (2006.01) C07C 17/38 (2006.01)

Patent

CA 2074298

A process for the removal of 1-chloro-2,2-difluoroethylene from 1,1,1,2-tetrafluoroethane by contacting the mixture with a zeolite having a mean pore size in the range of 3.5.ANG. and 4.8.ANG. and having potassium as counter cation. The zeolite having potassium as counter-cation may be produced by cation-exchange with a commercially available zeolite, for example AW-500.

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