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    Optimized process for extraction of ferulic acid with pretreatment
    2.
    发明授权
    Optimized process for extraction of ferulic acid with pretreatment 有权

    公开(公告)号：US10202328B2

    公开(公告)日：2019-02-12

    申请号：US14892790

    申请日：2014-05-19

    Applicant: RHODIA OPERATIONS

    Inventor： Denis Revelant ,  Stephanie Foucher ,  Dominique Horbez ,  Philippe Marion

    IPC: C07C51/47 ,  C07C51/00 ,  C07C51/43 ,  C07C51/48 ,  C12P7/62

    Abstract: A process for extraction of ferulic acid present in an aqueous phase, obtained by treatment of at least one plant material, and also containing polysaccharides, is described, said process comprising at least the following steps: 1) the treatment of said plant material followed by a solid/liquid separation to recover a solid phase and an aqueous liquid phase comprising the ferulic acid and said polysaccharides, 2) the treatment of said liquid phase to selectively separate, on the one hand, the polysaccharides and, on the other hand, the ferulic acid present in an aqueous fraction, 3) the concentration of said aqueous fraction containing the ferulic acid so as to recover a ferulic acid-concentrated stream, 4) the recovery of the ferulic acid in solid form.

    Method for separating mandelic compounds in salified form and use of same for preparing aromatic aldehyde
    4.
    发明授权
    Method for separating mandelic compounds in salified form and use of same for preparing aromatic aldehyde 有权
    以成盐形式分离扁桃状化合物的方法和用于制备芳族醛的方法

    公开(公告)号：US09567283B2

    公开(公告)日：2017-02-14

    申请号：US15105047

    申请日：2014-12-15

    Applicant: RHODIA OPERATIONS

    Inventor： Laurent Garel ,  Stephanie Normand ,  Stephanie Foucher ,  Dominique Horbez ,  Morad Assam

    IPC: C07C51/47 ,  B01D15/08 ,  C07C51/41 ,  C07C45/29 ,  C07C45/61

    CPC classification number: C07C51/47 ,  B01D15/08 ,  C07C45/29 ,  C07C45/512 ,  C07C45/61 ,  C07C51/367 ,  C07C51/41 ,  C07C59/52 ,  C07C47/58

    Abstract: The invention describes a method for separating a mandelic compound in salified form from an aqueous reaction medium resulting from the condensation reaction of a hydroxylated aromatic compound with glyoxylic acid in a basic medium, said method comprising a) decanting said reaction medium in such a way as to recover an organic phase formed from the excess of said aromatic compound and an aqueous phase formed from said mandelic compound and a quantity of the excess of said aromatic compound and b) bringing said aqueous phase into contact with an adsorbent support, resulting in the selective adsorption of said aromatic compound and the recovery of an aqueous flow comprising said mandelic compound in salified form, which is subjected to an oxidation step before being converted into hydroxyaromatic aldehyde by electrodialysis.

    Abstract translation: 本发明描述了一种从碱性介质中羟基化芳族化合物与乙醛酸的缩合反应产生的水性反应介质中分离成盐形态的扁桃酸化合物的方法，所述方法包括：a）将所述反应介质以如 回收由过量的所述芳族化合物形成的有机相和由所述扁桃酸化合物形成的水相和一定量的所述芳族化合物，以及b）使所述水相与吸附剂载体接触，导致选择性 所述芳香族化合物的吸附和含有所述扁桃酸化合物的盐水形式的水溶液的回收，所述盐水经过氧化步骤，然后通过电渗析转化为羟基芳族醛。

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