Recovery of 4-methyl-2-pentanone from acetic acid by distillatio

Details Recovery of 4-methyl-2-pentanone from acetic acid by distillatio Recovery of 4-methyl-2-pentanone from acetic acid by distillatio

1989-02-07

1989-08-29

Bascomb, Wilbur

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 51, 203 57, 203 61, 203 87, 562608, 568302, 568410, B01D 334, C07C 4582, C07C 4589

Patent

active

048614360

ABSTRACT:
When 4-methyl-2-pentanone and acetic acid mixtures are subjected to extractive distillation with a dimethyl sulfoxide - pelargonic acid mixture as the agent, the acetic acid is converted to gaseous ketene which is easily recovered from the 4-methyl-2-pentanone.

REFERENCES:
patent: 2235561 (1941-03-01), Nadeau et al.
patent: 2967888 (1961-01-01), Altenschopfer et al.
patent: 3013954 (1961-12-01), Pacoud et al.
patent: 3228985 (1966-01-01), Carpenter et al.
patent: 3480676 (1969-11-01), Scheuber
patent: 4793901 (1988-12-01), Berg et al.

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