Process for the production of difluoromethane

Details Process for the production of difluoromethane Process for the production of difluoromethane

1996-10-08

1998-09-01

Manoharan, Virginia

Distillation: processes, separatory

Miscellaneous separatory

203DIG19, 423488, 570178, B01D 300, C07C 17383

Patent

active

058006826

ABSTRACT:
A liquid and vapor phase processes for the production of difluoromethane in which the risk of exposure to, and equipment fouling from, chlorofluoromethane is reduced. This reduction is accomplished from removing a sidestream containing monochloromonofluoromethane from a fluorination process distillation column.

REFERENCES:
patent: 5129997 (1992-07-01), Schottle et al.
patent: 5211817 (1993-05-01), Adams et al.
patent: 5470442 (1995-11-01), Mahler et al.
patent: 5495057 (1996-02-01), Nam et al.
patent: 5523015 (1996-06-01), Tsuda et al.

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