Purification of 1, 1-difluoroethane

Details Purification of 1, 1-difluoroethane Purification of 1, 1-difluoroethane

1996-10-07

1998-04-28

Shaver, Paul F.

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

Organic compounds

Halogen containing

C07C 1738

Patent

active

057446610

ABSTRACT:
A method for removing unsaturated impurities from 1,1-difluoroethane by intimately contacting the impure 1,1-difluoroethane with sulfuric acid. This process is especially useful for removing one or more unsaturated halocarbons having two carbon atoms such as vinyl chloride, vinyl fluoride and blends thereof from the 1,1-difluoroethane.

REFERENCES:
patent: 3218364 (1965-11-01), Kometani et al.
patent: 3873629 (1975-03-01), Jones
patent: 3995010 (1976-11-01), Smalley et al.
patent: 5396001 (1995-03-01), Pennetreau

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