Process for isolating methyl tert-butyl ether from the reaction

Details Process for isolating methyl tert-butyl ether from the reaction Process for isolating methyl tert-butyl ether from the reaction

1980-02-22

1981-11-24

Sever, Frank

Distillation: processes, separatory

Plural distillations performed on same material

One a distillation under positive pressure or vacuum

203 76, 203 77, 203 78, 203 79, 203 80, 203 82, 203 83, 203 84, 203 85, 203 93, 203 94, 568697, 568699, B01D 314

Patent

active

043022987

ABSTRACT:
Process for isolating methyl tert-butyl ether contained in the reaction product of methanol with a C.sub.4 hydrocarbon cut containing isobutene, comprising fractionating said reaction product by introducing it at an intermediate point of a distillation zone, recovering methyl tert-butyl ether at the bottom thereof and, at the top thereof, a mixture of C.sub.4 hydrocarbons with methanol which is washed with water and condensed and wherefrom is separated a condensed C.sub.4 hydrocarbon fraction, a portion of which is fed back as reflux to the top of the distillation zone and another portion discharged, and separating the remaining water-methanol mixture by distillation.

REFERENCES:
patent: 3940450 (1976-02-01), Lee
patent: 4118425 (1978-10-01), Herbstman
patent: 4198530 (1980-04-01), Wentzheimer et al.

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