Purification of chlorofluorocarbons

Details Purification of chlorofluorocarbons Purification of chlorofluorocarbons

1988-06-30

1989-07-18

Evans, J. E.

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

Organic compounds

Halogen containing

C07C 1738, C07C 1908

Patent

active

048495581

ABSTRACT:
Chlorofluorocarbon solvents, particularly R113, may be purified by removing SO.sub.2 or its equivalent to the level of below about 0.3 ppb by contact with alumina or zeolites.

REFERENCES:
patent: 2149039 (1939-02-01), Benning et al.
patent: 2879228 (1959-03-01), Holeton
patent: 2909570 (1959-10-01), Wade et al.
patent: 3696156 (1972-10-01), Weeks

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