PROCEDE DE SEPARATION DE COMPOSES PHENOLIQUES SOUS FORME SALIFIEE
    7.
    发明公开
    PROCEDE DE SEPARATION DE COMPOSES PHENOLIQUES SOUS FORME SALIFIEE 有权
    VERFAHREN ZUR ABSCHEIDUNG VON VERSALZTEN PHENOLVERBINDUNGEN

    公开(公告)号:EP2483226A1

    公开(公告)日:2012-08-08

    申请号:EP10759917.7

    申请日:2010-09-30

    申请人: Rhodia Operations

    摘要: The present invention relates to a method for separating a salified phenolic compound from a reaction medium including same. The method of the invention for separating salified phenolic compounds from an aqueous reaction medium resulting from the reaction of a phenolic compound and glyoxylic acid in the presence of a base, which leads to a reaction medium including at least the excess of the starting salified phenolic compound and the various salified mandelic compounds resulting from the reaction, is characterized in that said reaction medium containing the starting salified phenolic compound is contacted with an adsorbent substrate, which leads to the selective adsorption of said phenolic compound onto said substrate and to the recovery of an aqueous flow containing the salified mandelic compounds from the reaction, and in that the phenolic compound attached onto the adsorbent is desorbed by means of a regenerating treatment of said adsorbent

    摘要翻译: 描述了从含有它们的反应介质中分离盐化酚类化合物的方法。 还描述了一种从碱类存在下由酚类化合物和乙醛酸反应得到的水性反应介质中分离盐化酚类化合物的方法,其导致至少包含过量的起始盐化酚 化合物和由反应产生的各种盐化的扁桃酸化合物,其中包括起始的盐化酚类化合物的反应介质与吸附剂基质接触。 这导致酚类化合物选择性吸附到所述基底上,并且从反应中回收含有盐化扁桃状化合物的水流,并且附着在吸附剂上的酚类化合物通过再生处理 吸附剂。