Process for purifying 2-(4-isobutylphenyl)-propionic acid by vac

Details Process for purifying 2-(4-isobutylphenyl)-propionic acid by vac Process for purifying 2-(4-isobutylphenyl)-propionic acid by vac

1993-02-08

1993-12-21

Bascomb, Jr., Wilbur

Distillation: processes, separatory

With disparate physical separation

Utilizing removing solid from liquid

203 49, 203 72, 203 73, 203 89, 203 91, B01D 310, C07C 5144

Patent

active

052718115

ABSTRACT:
2-(4-Isobutylphenyl)-propionic acid is purified by subjecting it to a vacuum rectification, in which the temperature is below the decomposition temperature of the acid.

REFERENCES:
patent: 3845121 (1974-10-01), Eubanks et al.
patent: 4450047 (1984-05-01), Malzahn
patent: 4655879 (1987-04-01), Brockman et al.
patent: 4814494 (1989-03-01), Shimizu et al.
patent: 4842696 (1989-06-01), Cazares
patent: 4843172 (1989-06-01), Tanaka et al.

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