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

1992-07-06

1993-03-16

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 57, 203 60, 203 61, 203 62, 203 63, 203 64, 562608, 568410, B01D 340, C07C 4583, C07C 5144

Patent

active

051941236

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-pentanone can be readily removed from acetic acid by extractive distillation. Typical effective agents are dimethlsulfoxide (DMSO); DMSO and adipic acid; DMSO, adipic acid and adiponitrile.

REFERENCES:
patent: 2954392 (1960-09-01), Rylander
patent: 3013954 (1961-12-01), Pacoud et al.
patent: 3228985 (1966-01-01), Carpenter et al.
patent: 3265592 (1966-08-01), Van Der Weel
patent: 4793901 (1988-12-01), Berg et al.
patent: 4861436 (1989-08-01), Berg et al.
patent: 4948471 (1990-08-01), Berg et al.

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