Process for producing tetrachloroethylene from tetrachloromethan

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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252463, 252467, 252471, 252474, 252476, 260654A, 260659A, 260660, 26062A, B01J 2308, C07C 1700, C07C 1704, C07C 1720

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040923703

ABSTRACT:
Processes for producing tetrachloromethane and tetrachlorethylene are disclosed. Tetrachloromethane is produced by contacting a chlorinated feed material having two to four carbon atoms, and optionally including oxygen, hydrogen chloride or chlorine, with a molten salt catalyst of copper chloride together with an alkali metal or alkaline earth metal chloride at a temperature between 450.degree. and 750.degree. C. Tetrachloroethylene is produced by contacting tetrachloromethane, optionally together with chlorinatable material, oxygen and hydrogen chloride, with a similar catalyst at a temperature of 430.degree. to 650.degree. C.

REFERENCES:
patent: 1930350 (1933-10-01), Strosacker et al.
patent: 2498552 (1950-02-01), Kilgren et al.
patent: 2727076 (1955-12-01), Warren
patent: 2890250 (1959-06-01), Thermet et al.
Krynitsky et al., J. Amer. Chem. Soc., vol. 71, pp. 816 to 819 (1949).
Bost et al., J. Amer. Chem. Soc., vol. 70, pp. 1027 to 1029 (1948).

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