MODIFIED ION EXCHANGE RESIN AND METHOD FOR OBTAINING BISPHENOLS Russian patent published in 2008 - IPC B01J31/10 B01J39/16 C07C39/16 C07B45/06 C08F8/40 

FIELD: chemistry.

SUBSTANCE: invention claims modified ion exchange resin, where at least one compound selected out of the following (A) and (B) compounds is linked by ion link to functional acid group of acid ion exchange resin, so that compound is linked by ion link to 0.1-50 mol % of total functional acid group number present in acid ion exchange resin: compound (A) is represented by formula 1, where P is phosphor atom; S is sulfur atom; H is hydrogen atom; R¹ is alkylene group including 1 to 6 carbon atoms, where one fragment can include phenylene group; and each R², R³ and R⁴ are independently (1) alkyl group including 1 to 6 carbon atoms, or (3) aryl group including 5 to 10 carbon atoms; and compound (B) is represented by formula 2, where P is phosphor atom; S is sulfur atom; H is hydrogen atom; each of R¹ and R² is alkylene group including 1 to 6 carbon atoms, where one fragment can include phenylene group; and each R³ and R⁴ are independently an aryl group including 5 to 10 carbon atoms. Also invention claims catalyst for obtaining bisphenols, based on this resin, and method of bisphenol obtaining. Invention claims methods of obtaining modified ion exchange resin (versions).

EFFECT: obtained catalyst with high selectivity to bisphenols, obtaining of bisphenol A with high acetone conversion grade.

9 cl, 10 ex