Process for preparing 2,2-bis(4-hydroxyphenyl)propane of...

Details Process for preparing 2,2-bis(4-hydroxyphenyl)propane of... Process for preparing 2,2-bis(4-hydroxyphenyl)propane of...

C - Chemistry, Metallurgy

07

C

260/617.7

C07C 37/72 (2006.01) C07C 39/16 (2006.01)

Patent

CA 1304756

ABSTRACT OF THE DISCLOSURE Disclosed is a process for preparing 2,2-bis(4- hydroxyphenyl)propane (bisphenol A) by reacting acetone with phenol and decomposing the resultant adduct of bisphenol A and phenol. The quality of bisphenol A thus obtained is not always satisfactory. The adduct is washed with phenol recovered by decomposing the adduct of bisphenol A and phenol, and then bisphenol A is prepared by decomposing the washed adduct. The bisphenol A prepared by this process has an extremely high quality and is suitable for the preparation of polycarbonate used for optical parts.

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