Separation of 4-methyl-2-pentanone from acetic acid by extractiv

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

1991-05-02

1992-03-03

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 60, 203 61, 203 62, 203 63, 203 64, 562608, 568410, B01D 340, C07C 4583, C07C 5144

Patent

active

050929658

ABSTRACT:
4-Methyl-2-pentanone cannot be easily separated from acetic acid by distillation because of the closeness of their boiling points. 4-Methyl-2-phentanone can be readily removed from acetic acid by extractive distillation. Typical effective agents are dimethylformamide (DMFA); DMFA and m-toluic acid; DMFA, p-toluic acid and isobutyl heptyl ketone.

REFERENCES:
patent: 3013954 (1961-12-01), Pacoud et al.
patent: 3228985 (1966-01-01), Carpenter et al.
patent: 4551208 (1985-01-01), Bott et al.
patent: 4840707 (1989-06-01), Berg et al.
patent: 4861436 (1989-08-01), Berg et al.
patent: 4994151 (1991-02-01), Berg et al.

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