Production of phosgene

Details Production of phosgene Production of phosgene

1978-10-02

1982-08-24

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5158

Patent

active

043460470

ABSTRACT:
A molten salt containing the higher and lower valent chlorides, such as mixture of cuprous and cupric chloride, is contacted with oxygen and hydrogen chloride to enrich the salt in the higher valent metal chloride. The salt enriched in the higher valent metal chloride is contacted with carbon monoxide to both strip gaseous chlorine from the salt and produce phosgene by reaction with carbon monoxide and thereby recover essentially all chlorine values added to the salt. The reaction can be effected to provide stoichiometric quantities of carbon monoxide and chlorine in the effluent for producing additional phosgene.

REFERENCES:
patent: 2418930 (1947-04-01), Gorin
patent: 2444289 (1948-06-01), Gorin et al.
patent: 3968050 (1976-07-01), Riegel
patent: 3996273 (1976-12-01), Daumas
patent: 4119705 (1978-10-01), Riegel et al.
patent: 4190639 (1980-02-01), Tsao

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