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    GLYCERIN PURIFICATION METHOD AND GLYCERIN PURIFIED BY THE METHOD
    2.
    发明公开
    GLYCERIN PURIFICATION METHOD AND GLYCERIN PURIFIED BY THE METHOD 审中-公开

    公开(公告)号：EP4122907A1

    公开(公告)日：2023-01-25

    申请号：EP21461572.6

    申请日：2021-07-23

    申请人： ORLEN Poludnie S.A.

    发明人： Borówka, Grzegorz ,  Semerjak, Grzegorz ,  Krzak, Mateusz ,  Krasodomski, Wojciech ,  Lubowicz, Jan

    IPC分类号： C07C29/80 ,  C07C29/76 ,  C07C29/74 ,  C07C29/88 ,  C07C31/22 ,  C11C3/00

    摘要： The first subject of the invention is a method of purifying glycerine resulting from transesterification reaction of used cooking oils or vegetable oils, comprising the steps of: removing the non-glycerol organic fraction and methanol, removing water, removing sulphur-containing impurities, glycerine distillation, removing impurities containing nitrogen, chlorine and sulphur, deodorization and bleaching, characterized in that in step a) the feed is acidified with sulphuric acid (VI) to a pH of 6 to 6.5 and neutralized, the non-glycerol organic fraction is removed, methanol is distilled off, then treated with an alkaline agent, and in step b) the water is removed by distillation to a content of 2% by weight, in step c) the pH of the mixture is adjusted to a value from 9 to 10 with an aqueous solution of an alkali hydroxide, preferably sodium hydroxide, and a sulphur-binding agent is introduced, which is an oxide of metal from the eighth group of the periodic table of elements, in the amount of 0.01% by weight, then in step d) distillation is performed and in step e) the glycerine after distillation is fed to a column containing an ion exchange resin, preferably a cation exchanger, then in step f) the mixture is subjected to steam stripping and bleaching in a system of adsorbers loaded with activated carbon and/or activated carbon with an additional adsorbent and filters. The invention also relates to glycerine purified by this method.

    PRODUCTION METHOD FOR GAMMA, DELTA-UNSATURATED ALCOHOLS
    5.
    发明公开
    PRODUCTION METHOD FOR GAMMA, DELTA-UNSATURATED ALCOHOLS 审中-公开

    公开(公告)号：EP3150572A4

    公开(公告)日：2018-01-24

    申请号：EP15803022

    申请日：2015-06-02

    申请人： KURARAY CO

    发明人： SUZUKI YUTAKA

    IPC分类号： C07C29/88 ,  C07C29/80 ,  C07C33/025

    CPC分类号： C07C29/44 ,  C07C29/80 ,  C07C29/88 ,  C07C33/025

    摘要： Provided is a method from which a ³,´-unsaturated alcohol having a much more smaller amount of inclusion of formic acid and a formic acid ester and having a high purity can be obtained in a high yield. Specifically, provided is a method for producing a ³,´-unsaturated alcohol by causing a reaction between an ±-olefin and formaldehyde, the method including a step of bringing a reaction liquid obtained through the reaction into contact with an alkaline aqueous solution so as to provide an aqueous solution having pH of 9 to 13.

    PRODUCTION METHOD FOR GAMMA, DELTA-UNSATURATED ALCOHOLS
    6.
    发明公开
    PRODUCTION METHOD FOR GAMMA, DELTA-UNSATURATED ALCOHOLS 审中-公开
    HERSTELLUNGSVERFAHREN VON GAMMA，DELTA-UNGESÄTTIGTENALKOHOLEN

    公开(公告)号：EP3150572A1

    公开(公告)日：2017-04-05

    申请号：EP15803022.1

    申请日：2015-06-02

    申请人： Kuraray Co., Ltd.

    发明人： SUZUKI, Yutaka

    IPC分类号： C07C29/88 ,  C07C29/80 ,  C07C33/025

    CPC分类号： C07C29/44 ,  C07C29/80 ,  C07C29/88 ,  C07C33/025

    摘要： Provided is a method from which a γ,δ-unsaturated alcohol having a much more smaller amount of inclusion of formic acid and a formic acid ester and having a high purity can be obtained in a high yield. Specifically, provided is a method for producing a γ,δ-unsaturated alcohol by causing a reaction between an α-olefin and formaldehyde, the method including a step of bringing a reaction liquid obtained through the reaction into contact with an alkaline aqueous solution so as to provide an aqueous solution having pH of 9 to 13.

    摘要翻译： 提供可以以高产率从其中获得具有更少量的包含甲酸和甲酸酯并且具有高纯度的“不饱和醇”的方法。 具体地说，提供了通过使α-烯烃与甲醛发生反应来制造3' - 不饱和醇的方法，该方法包括将通过反应得到的反应液与碱性水溶液接触的步骤，以便 得到pH为9〜13的水溶液。