Dehydration of acetic acid by extractive distillation

Details Dehydration of acetic acid by extractive distillation Dehydration of acetic acid by extractive distillation

1992-02-06

1992-12-01

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 57, 203 58, 203 60, 562608, B01D 340, C07C 5144, C07C 5308

Patent

active

051677741

ABSTRACT:
Acetic acid cannot be easily removed from acetic acid - water mixtures by distillaton because of the closeness of their boiling points and the deviation from ideal solution behavior. Acetic acid can be readily removed from the mixtures containing it and water by using extractive distillation. Typical effective agents are sulfolane and adiponitrile.

REFERENCES:
patent: 1624811 (1927-04-01), Suida
patent: 3951755 (1976-04-01), Sartorius et al.
patent: 4576683 (1986-03-01), Cohen
patent: 4642166 (1987-02-01), Berg et al.
patent: 4670105 (1987-06-01), Berg et al.
patent: 4729818 (1988-03-01), Berg
patent: 4735690 (1988-04-01), Berg et al.

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