Method for maximizing yield and purity of bisphenol A

Details Method for maximizing yield and purity of bisphenol A Method for maximizing yield and purity of bisphenol A

1987-10-05

1988-08-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

568748, 568757, C07C 3768

Patent

active

047662549

ABSTRACT:
Product losses and color formation are sometimes encountered in the synthesis of bisphenol A from phenol and acetone in the presence of a cation exchange resin, particularly in the crude product stream from which bisphenol A has been separated via its phenol adduct. Such losses are suppressed and the crude product stream stabilized and decolorized by contact with an anion exchange resin.

REFERENCES:
patent: 3234290 (1966-02-01), Rocklin
patent: 4107218 (1978-08-01), Konard et al.
patent: 4375567 (1983-03-01), Faler et al.
patent: 4386224 (1983-05-01), Deitman

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