Purification of 1,1,1,2-tetrafluoroethane

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

1992-03-11

1992-11-03

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 1738

Patent

active

051604990

ABSTRACT:
A process for the removal of 1-chloro-2,2-difluoroethylene from 1,1,1,2-tetrafluoroethane which process comprises contacting 1,1,1,2-tetrafluoroethane containing 1-chloro-2,2-difluoroethylene with a zeolite containing strontium cations.
The zeolite containing stronium cations may be produced by ion-exchange with a commercially available zeolite, for example an A-type zeolite or a chabazite.

REFERENCES:
patent: 4906796 (1990-03-01), Yates
patent: 4940824 (1990-07-01), Yates
patent: 4950816 (1990-08-01), Tung

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