Phosgene process

Details Phosgene process Phosgene process

1996-05-17

1997-09-30

Killos, Paul J.

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

Organic compounds

Carboxylic halides

C07C 5158

Patent

active

056727470

ABSTRACT:
A process for the production of phosgene (COCl.sub.2) comprising first reacting perchloroethylene (CCl.sub.2 .dbd.CCl.sub.2) with hydrogen chloride and oxygen in the presence of a first catalyst to give hexachloroethane and water, separating the hexachloroethane, and second reacting the hexachloroethane from the first step with carbon monoxide in the presence of a second catalyst to produce perchloroethylene and phosgene which is separated from the perchloroethylene before the latter is recycled to the first step.

REFERENCES:
patent: 1231226 (1917-06-01), Whitehouse
patent: 1360312 (1920-11-01), Peacock
patent: 1457493 (1923-06-01), Bradner
patent: 1746506 (1930-02-01), Williams
patent: 2847470 (1958-08-01), Douthitt
patent: 3364272 (1968-01-01), Ager
patent: 3996273 (1976-12-01), Daumas

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