Purification of bisphenol-A

Details Purification of bisphenol-A Purification of bisphenol-A

1984-01-04

1985-03-26

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568749, C07C 3768, C07C 3916

Patent

active

045075093

ABSTRACT:
A method for purifying water-crystallized bisphenol-A involving treatment with an aqueous alkaline solution. The concentration of base preferably ranges from 0.1 to 25 weight percent of crude bisphenol-A. The crude bisphenol-A is a solid and preferably at a temperature in the range of about 10.degree. to 80.degree. C.

REFERENCES:
patent: 3277183 (1966-10-01), Heller et al.
patent: 3326986 (1967-06-01), Dugan et al.
patent: 4408087 (1983-10-01), Li

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