Demethanolization of aqueous CH.sub.3 OH/HCl solutions

Details Demethanolization of aqueous CH.sub.3 OH/HCl solutions Demethanolization of aqueous CH.sub.3 OH/HCl solutions

1986-10-01

1989-02-28

Mars, Howard T.

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

Organic compounds

Halogen containing

C07C 1716

Patent

active

048087610

ABSTRACT:
Residual aqueous phases, emanating from the synthesis of methyl chloride by reacting methanol with hydrochloric acid, are conveniently demethanolized by maintaining same in liquid phase and in the absence of catalyst, at a temperature of from 50.degree. to 150.degree. C. and under a pressure of less than about 8 bars. The methanol recovered is in the form of a crude methyl chloride which is advantageously recycled to the CH.sub.3 OH/HCl reaction zone.

REFERENCES:
patent: 2153170 (1939-04-01), Buc et al.
patent: 3432561 (1969-03-01), Dadekian et al.
patent: 3527820 (1970-09-01), Mercier
patent: 3981938 (1976-09-01), Steele et al.
patent: 3983180 (1976-09-01), Habata et al.

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