Separation of 3-methyl-2-butanone from formic acid by extractive

Details Separation of 3-methyl-2-butanone from formic acid by extractive Separation of 3-methyl-2-butanone from formic acid by extractive

1988-12-30

1989-06-20

Bascomb, 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, 562609, 568410, B01D 340, C07C 4583, C07C 5302

Patent

active

048407070

ABSTRACT:
3-Methyl-2-butanone cannot be removed from 3-methyl-2-butanone and formic acid mixtures by distillation because of the presence of the maximum azeotrope between 3-methyl-2-butanone and formic acid. 3-Methyl-2-butanone can be readily removed from 3-methyl-2-butanone - formic acid mixtures by extractive distillation in which the extractive agent is dimethylacetamide, dimethylformamide or these with certain high boiling organic compounds.

REFERENCES:
patent: 2010384 (1935-08-01), vanMelsen et al.
patent: 3013954 (1961-12-01), Pacoud et al.
patent: 3228985 (1966-01-01), Carpenter et al.
patent: 4551208 (1985-11-01), Bott et al.
patent: 4678544 (1987-07-01), Wideman
patent: 4735690 (1988-04-01), Berg et al.
patent: 4793901 (1988-12-01), Berg et al.

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