Process for purifying methanol by distillation

Details Process for purifying methanol by distillation Process for purifying methanol by distillation

1975-01-29

1977-03-22

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Plural distillations performed on same material

Including the addition of water or steam

203 18, 203 99, 203DIG19, 260643R, B01D 340

Patent

active

040135217

ABSTRACT:
Impure methanol containing ethanol is substantially freed of ethanol by distilling a mixture consisting essentially of the impure methanol, ethanol and water with the aid of a distillation column in a region of which the methanol to water ratio is maintained substantially constant, and withdrawing a stream enriched in ethanol from a point near one end of that region.

REFERENCES:
patent: 3239435 (1966-03-01), Conseiller et al.
patent: 3282802 (1966-11-01), Clark
patent: 3293154 (1966-12-01), Newton
patent: 3391064 (1968-07-01), Skell
patent: 3406100 (1968-10-01), Karafian
patent: 3434937 (1969-03-01), Elliott et al.
patent: 3442770 (1969-05-01), Wentworth et al.
patent: 3445345 (1969-05-01), Katzen

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