Process for the purification of chlorofluorohydrocarbons

Details Process for the purification of chlorofluorohydrocarbons Process for the purification of chlorofluorohydrocarbons

1992-04-28

1993-08-03

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1738

Patent

active

052331075

ABSTRACT:
The invention relates to a process for removing olefinic impurities from hydrogen-containing chlorofluorohydrocarbons (HCFCs) in which the contaminated HCFCs are passed in the gas phase at 200.degree. to 400.degree. C. over a zeolite.

REFERENCES:
patent: 3696156 (1972-10-01), Weeks
patent: 4906796 (1990-03-01), Yates
patent: 4922044 (1990-05-01), Yates et al.
patent: 4940824 (1990-07-01), Yates
patent: 4940825 (1990-07-01), Yates
patent: 4950816 (1990-08-01), Ting

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