SYNTHESIS OF BISPHENOL A WITH LOW ISOMERISATION Russian patent published in 2010 - IPC C07C37/20 C07C39/16 

Abstract RU 2402521 C2

FIELD: chemistry.

SUBSTANCE: present invention relates to a method for synthesis of bisphenol A in which a) phenol and acetone are mixed, b) said mixture is heated, c) said heated mixture which is at a certain temperature is brought into contact with an acid ion exchanger as a catalyst and d) bisphenol A is extracted from the reaction mixture obtained at step c). At step b) the mixture is heated to temperature between 48°C and 54°C.

EFFECT: method enables to obtain an end product with low content of isomers.

6 cl, 2 ex

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RU 2 402 521 C2

Authors

Nojmann Rajner

Blashke Ul'Rikh

Vesternakher Shtefan

Dates

2010-10-27Published

2005-01-22Filed