Process for the production of crystalline adduct of bisphenol A and phenol and apparatus therefor

High purity, crystalline adduct of bisphenol A and phenol is produced multi-stage crystallization of a phenolic slurry of bisphenol A with a crystal separation being interposed between each stage. The purity of the phenol solvent which is used to prepare the solutions for the crystallization stages...

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Main Authors KOUZAKI, TAKESHI, ASAOKA, SACHIO, YASUI, MAKOTO, MAEJIMA, TETSUO, MORIYA, NOBUO, NISHIJIMA, HIROAKI, ONDA, NOBUHIRO, SHIMODA, KEIJI, KAMEDA, TAKAO, SAKASHITA, KOUJI
Format Patent
LanguageEnglish
French
German
Published 29.01.1997
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:High purity, crystalline adduct of bisphenol A and phenol is produced multi-stage crystallization of a phenolic slurry of bisphenol A with a crystal separation being interposed between each stage. The purity of the phenol solvent which is used to prepare the solutions for the crystallization stages is controlled so as to increase progressively. The crystalline adduct obtained in the final crystallization stage is washed with purified phenol.
Bibliography:Application Number: EP19920304932