Process for catalytically producing phosgene

Details Process for catalytically producing phosgene Process for catalytically producing phosgene

1978-03-13

1979-01-09

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 902

Patent

active

041338316

ABSTRACT:
Disclosed is a process for catalytically producing phosgene in a high yield in a solvent. In this process, carbon monoxide gas is brought into contact with a solution containing chlorine and with a catalyst consisting of at least one phosphine chloride compound, so as to cause the carbon monoxide to react with the chlorine. The phosphine chloride catalyst compound can be selected from substituted and unsubstituted trialkylphosphine dichlorides, substituted and unsubstituted tetraalkyldiphosphine tetrachlorides, substituted and unsubstituted alkylphosphorane dichlorides, and substituted and unsubstituted alkylene-bis(alkylphosphine) tetrachlorides.

REFERENCES:
patent: 1457493 (1923-06-01), Bradner
patent: 2847470 (1958-08-01), Douthitt
patent: 3515752 (1970-06-01), Bauer
patent: 3996273 (1976-12-01), Daumas

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