Purification of pentafluoroethane

Details Purification of pentafluoroethane Purification of pentafluoroethane

1997-07-30

1999-11-23

Siegel, Alan

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

Organic compounds

Halogen containing

570176, C07C 1738

Patent

active

059903643

ABSTRACT:
In order to purify a crude pentafluoroethane (F125) containing chloropentafluoroethane (F115), it is subjected to a heat treatment in the presence of hydrogen, the treatment being carried out at a temperature at least equal to 550.degree. C. and with an H.sub.2 /F115 molar ratio of at least 10.

REFERENCES:
patent: 4873381 (1989-10-01), Kellner et al.
patent: 5087329 (1992-02-01), Felix
patent: 5346595 (1994-09-01), Clemmer et al.

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