Purification of 1,1,1,2-tetrafluoroethane

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

1997-11-19

2000-08-22

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1738

Patent

active

061075299

ABSTRACT:
A process for the removal of 1,1,2,2-tetrafluoroethane from 1,1,1,2-tetrafluoroethane which comprises contacting 1,1,1,2-tetrafluoroethane containing 1,1,2,2-tetrafluoroethane with a zeolite having a mean pore size in the range of 3.8 .ANG. an 4.8 .ANG.. The zeolite is preferably calcium chabazite.

REFERENCES:
patent: 4906706 (1990-03-01), Yates
patent: 5087778 (1992-02-01), Yates
patent: 5160499 (1992-11-01), Edwards
Chemical Abstracts, vol. 115, No. 17, Oct. 28, 1991, Columbus, Ohio, US; Abstract No. 182607b.

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