Synthesis of aminophenylhydroxyphenylalkanes form bisphenol tars
    34.
    发明公开
    Synthesis of aminophenylhydroxyphenylalkanes form bisphenol tars 失效
    氨基苯基羟基苯基烷烃合成双酚焦油

    公开(公告)号:EP0837051A3

    公开(公告)日:2000-07-19

    申请号:EP97308182.1

    申请日:1997-10-15

    CPC分类号: C07C213/08 C07C215/74

    摘要: The disclosure is of a process for recovering valuable by-products of the condensation of phenol and a ketone from a mother liquor obtained for example upon crystallization of a 1:1 adduct of phenol and bisphenol, said mother liquor containing phenol, bisphenol, isomers, contaminant by-products of the condensation reaction of phenol with the ketone and acidic impurities. The mother liquor is distilled/evaporated leaving a tarry residue, which is the feedstock for the process of the invention. The recovery comprises heating the feedstock with proportions of an arylamine salt, to extract the bisphenol-A values as aminophenylhydroxylphenyl-alkanes.

    摘要翻译: 本发明涉及从苯酚和双酚的1:1加合物结晶得到的母液中回收苯酚和酮缩合的有用副产物的方法,所述母液含有苯酚,双酚,异构体, 苯酚与酮和酸性杂质的缩合反应的污染副产物。 将母液蒸馏/蒸发,留下焦油残余物,它是本发明方法的原料。 回收包括用比例的芳胺盐加热原料,以提取双酚-A值作为氨基苯基羟基苯基 - 烷烃。