Process and catalyst for production of bisphenol-A

Details Process and catalyst for production of bisphenol-A Process and catalyst for production of bisphenol-A

1986-10-30

1989-04-11

Lone, Werren B.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

521 33, 568728, 502159, C08F 520

Patent

active

048207403

ABSTRACT:
Bisphenol-A is prepared by reacting an excess of phenol with acetone in the presence of a modified sulfonic acid cationic exchange resin catalyst having a plurality of sulfonic acid sites of the general formula ##STR1## in which IER represnts the ionic exchange backbone, each a and b is an integer from 9 to about 5, and each R is selected independently from H, OH, Sh and alkyl groups. The catalyst exhibits high activity and selectively at moderate reaction temperatures, low production of colored impurities, and high stability.

REFERENCES:
patent: 2807653 (1957-09-01), Fibley
patent: 3394089 (1968-07-01), McNutt
patent: 3760006 (1973-09-01), Gammill
patent: 4053522 (1977-10-01), McClure
patent: 4294995 (1981-10-01), Faler
patent: 4346247 (1982-08-01), Faler
patent: 4369298 (1983-01-01), Heydenreich
patent: 4423252 (1983-12-01), Maki
patent: 4424283 (1984-01-01), Faler
patent: 4455409 (1984-06-01), Faler
patent: 4478956 (1984-10-01), Maki
patent: 4584416 (1986-04-01), Pressman

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