发明名称 RECRYSTALLIZATION OF BISPHENOL A BY AZEOTROPICALLY DRYING THE SOLVENT
摘要 <p>This invention discloses a high yield azeotropic separation procedure for isomers of bisphenol A. Specifically, the o,p'-isomer is separated from the p,p'-isomer by removal of a cosolvent thus producing crystallization. Water and an organic solvent not miscible with water are used as cosolvents.</p>
申请公布号 CA1250002(A) 申请公布日期 1989.02.14
申请号 CA19860518340 申请日期 1986.09.17
申请人 DOW CHEMICAL COMPANY (THE) 发明人 LITTLE, DOUGLAS J.
分类号 B01D9/02;C07C27/00;C07C37/84;C07C39/16;C07C67/00;(IPC1-7):C07C37/84 主分类号 B01D9/02
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