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    PROCESS FOR THE PRODUCTION OF FURFURAL
    1.
    发明申请
    PROCESS FOR THE PRODUCTION OF FURFURAL 审中-公开
    生产过程的过程

    公开(公告)号：US20150152074A1

    公开(公告)日：2015-06-04

    申请号：US14619611

    申请日：2015-02-11

    申请人： E I DU PONT DE NEMOURS AND COMPANY

    发明人： DAVID RICHARD CORBIN ,  PAUL JOSEPH FAGAN ,  STUART B. FERGUSSON ,  KEITH W. HUTCHENSON ,  PRANIT S. METKAR ,  RONNIE OZER ,  CARMO JOSEPH PEREIRA ,  BHUMA RAJAGOPALAN ,  SOURAV KUMAR SENGUPTA ,  ERIC J. TILL

    IPC分类号： C07D307/50

    CPC分类号： C07D307/50 ,  C07D307/48 ,  Y02P20/127

    摘要： Furfural is produced by contacting a feedstock solution containing C5 sugar and/or C6 sugar with a solid acid catalyst using reactive distillation. Both high yield and high conversion are obtained, without production of insoluble char in the reaction vessel. Degradation of furfural is minimized by its low residence time in contact with the solid acid catalyst. Higher catalyst lifetime can be achieved because the catalyst is continually washed with the refluxing aqueous solution and not sitting in high-boiling byproducts like humins, which are known to be deleterious to catalyst lifetime.

    摘要翻译： 通过使用反应蒸馏将含有C5糖和/或C6糖的原料溶液与固体酸催化剂接触来制备糠醛。 获得高产率和高转化率，而在反应容器中不产生不溶性焦炭。 通过其与固体酸催化剂接触的低停留时间使糠醛的降解最小化。 可以实现更高的催化剂寿命，因为催化剂连续地用回流水溶液洗涤，而不是位于已知对催化剂寿命有害的高沸点副产物如胡氏。