Separation of 4-methyl-2-pentanone from formic or acetic acid by

Details Separation of 4-methyl-2-pentanone from formic or acetic acid by Separation of 4-methyl-2-pentanone from formic or acetic acid by

1989-08-01

1990-08-14

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 57, 203 58, 203 60, 203 61, 203 62, 203 63, 203 64, 562608, 562609, 568410, B01D 340, C07C 5144

Patent

active

049484710

ABSTRACT:
4-Methyl-2-pentanone cannot be easily separated from formic acid or acetic acid by distillation because of the closeness of their boiling points. 4-Methyl-2-pentanone can be readily removed from formic acid or acetic acid by extractive distillation. Typical effective agents are sulfolane; sulfolane and heptanoic acid; sulfolane, azelaic acid and ethylene glycol diacetate.

REFERENCES:
patent: 2570205 (1951-10-01), Carlson et al.
patent: 2586929 (1952-02-01), Fleming et al.
patent: 3013954 (1961-12-01), Pacoud et al.
patent: 3265592 (1966-08-01), Van Der Weel
patent: 3309407 (1967-03-01), Carpenter et al.
patent: 4735690 (1988-04-01), Berg et al.
patent: 4793901 (1988-12-01), Berg et al.
patent: 4840707 (1989-06-01), Berg et al.
patent: 4859285 (1989-08-01), Berg et al.

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