92545-08-9Relevant articles and documents
Method for producing a bisphenol, and, production of polycarbonate resin (by machine translation)
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Paragraph 0160-0163; 0166-0167, (2019/08/21)
[Problem] aromatic alcohols and ketone or aldehyde from reaction of bisphenol a, bisphenol to shorten the reaction time, produced bisphenol selectivity is improved, having good color tone bisphenol production can be obtained. [Solution] aromatic alcohols containing organic phase, the aqueous phase is separated from the oil and water containing sulfuric acid, wherein the organic phase in the aromatic alcoholic sulfone acid, aromatic alcoholic sulfone acid (1) to obtain a liquid reaction product containing, a reaction liquid containing the aromatic alcoholic sulfone acid, ketone or aldehyde mixture, the aromatic alcoholic sulfone in the presence of acid, the aromatic alcohol, wherein said step (2) produced from a ketone or aldehyde to bisphenol a, bisphenol a production. [Drawing] no (by machine translation)