Process for purifying acids formed during liquid phase oxidation

Details Process for purifying acids formed during liquid phase oxidation Process for purifying acids formed during liquid phase oxidation

1994-12-15

1996-05-14

Bascomb, Jr., Wilbur

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 16, 203 35, 203 37, 203 38, 203 71, 562608, 562609, B01D 334, C07C 5142

Patent

active

055164064

ABSTRACT:
A method of purifying the oxidate product formed by the liquid phase oxidation of C.sub.4 -C.sub.8 paraffinic hydrocarbons comprises adding a strong acid catalyst to the oxidate product to catalyze the break down of Michael addition products of unsaturated carbonyls and carboxylic acids so that the carbonyls can be distilled off during the initial stages of purification.

REFERENCES:
patent: 2138582 (1938-11-01), Knapp
patent: 2255421 (1941-09-01), Groll et al.
patent: 2273459 (1942-02-01), Britton et al.
patent: 3196176 (1965-07-01), Howell
patent: 3347756 (1967-10-01), Snell
patent: 4110372 (1978-08-01), Hey et al.
patent: 4131742 (1978-12-01), Hudson

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