PROCESS FOR MAKING BIOBASED PROPYLENE GLYCOL FROM LACTIC ACID ESTERS
    5.
    发明公开
    PROCESS FOR MAKING BIOBASED PROPYLENE GLYCOL FROM LACTIC ACID ESTERS 审中-公开
    由乳酸酯制备生物基丙二醇的方法

    公开(公告)号:EP3221285A1

    公开(公告)日:2017-09-27

    申请号:EP15861519.5

    申请日:2015-11-04

    发明人: MA, Chi-Cheng

    CPC分类号: C07C29/149 C07C31/205

    摘要: A process is described for making a biobased propylene glycol product at least in part from a carbohydrate-derived feed, wherein a feed comprised of a lactic acid ester is reacted with hydrogen in the presence of a catalyst, in a nonaqueous solvent in which lactide may be essentially wholly solubilized at the conditions under which the reaction is carried out, so that lactide does not precipitate out to an extent whereby plugging of the reactor or fouling of the hydrogenation catalyst is observed.

    摘要翻译: 描述了一种至少部分地由碳水化合物衍生的进料制备生物基丙二醇产物的方法,其中在催化剂存在下,在乳酸酯进料的非水溶剂中,使包含乳酸酯的进料与氢气反应 在进行反应的条件下基本上完全溶解,从而丙交酯不会沉淀出来,从而观察到反应器堵塞或加氢催化剂结垢。