Separation of 3-methyl-2-butanol from 1-butanol by extractive di

Details Separation of 3-methyl-2-butanol from 1-butanol by extractive di Separation of 3-methyl-2-butanol from 1-butanol by extractive di

1994-09-23

1995-04-18

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 58, 203 59, 203 60, 203 63, 203 62, 203 65, 203 68, 203 69, 568913, B01D 340, C07C 2984

Patent

active

054075408

ABSTRACT:
3-Methyl-2-butanol is difficult to separate from 1-butanol by conventional distillation or rectification because of the proximity of their boiling points. 3-Methyl-2-butanol can be readily separated from 1-butanol by extractive distillation. Effective agents are ethyl n-valerate, dimethylacetamide and dimethylsulfoxide.

REFERENCES:
patent: 2552911 (1951-05-01), Steitz
patent: 2575243 (1951-11-01), Carlson et al.
patent: 2583412 (1952-01-01), Carlson et al.
patent: 4756803 (1988-07-01), Berg
patent: 5360520 (1994-11-01), Berg

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