发明名称 PROCESS FOR THE PURIFICATION OF DIHYDRIC PHENOLS
摘要 A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A, contacting the solution A with an adsorbent material selected from the group consisting of metal oxides, modified metal oxides, activated carbons, and clays, filtering the adsorbent material to form a solution B, adding an anti-solvent to the solution B to form a solution C, and distilling the solution C, wherein the dihydric phenol is represented by Formula (I): wherein R is a hydrogen atom or an aliphatic functionality having 1 to 6 carbon atoms and n is an integer having a value of 1 to 4.
申请公布号 US2007232775(A1) 申请公布日期 2007.10.04
申请号 US20060277957 申请日期 2006.03.30
申请人 GENERAL ELECTRIC COMPANY 发明人 ASHTEKAR SUNIL;MALUSARE MAHESH;KISHAN GURRAM;NARAYANAN PUSHPA;GV RAMANARAYANAN;DIXIT ARUN;NADKARNI PRADEEP;LENS JAN P.
分类号 C08G61/02;C07C39/10 主分类号 C08G61/02
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