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    METHOD FOR PREPARING NEOPENTYL GLYCOL AT HIGH EFFICIENCY AND APPARATUS FOR PREPARING SAME
    5.
    发明公开
    METHOD FOR PREPARING NEOPENTYL GLYCOL AT HIGH EFFICIENCY AND APPARATUS FOR PREPARING SAME 审中-公开

    公开(公告)号：EP3187481A4

    公开(公告)日：2018-04-25

    申请号：EP15820424

    申请日：2015-09-15

    申请人： LG CHEMICAL LTD

    发明人： EOM SUNG SHIK ,  KO DONG HYUN ,  KIM MI YOUNG ,  JUNG DA WON ,  KIM TAE YUN ,  CHOI MIN JI

    IPC分类号： C07C29/141 ,  B01J21/08 ,  B01J23/78 ,  C07C29/94 ,  C07C31/20

    CPC分类号： C07C29/141 ,  B01J19/24 ,  B01J21/08 ,  B01J23/78 ,  B01J2219/00103 ,  C07C31/20

    摘要： Disclosed are a highly efficient neopentyl glycol preparation method and a device therefor. More particularly, disclosed are a method of preparing neopentyl glycol, wherein the method includes adding a hydroxypivaldehyde solution and hydrogen to a hydrogenation reactor that including a hydrogenation catalyst, wherein the hydroxypivaldehyde solution includes 6 to 30 % by weight of hydroxypivaldehyde, 35 to 70 % by weight of neopentyl glycol, 10 to 30 % by weight of alcohol, and 10 to 30 % by weight of water, and a device therefor. According to the present disclosure, a neopentyl glycol preparation method wherein separate heating is not required in a section of a feed vessel to an inlet of a hydrogenation reactor unlike conventional technologies to save energy, and, at the same time, by-products with a high boiling point are not generated in the section to prevent poisoning of a hydrogenation catalyst in a reactor due to the by-products with a high boiling point and increase a hydrogenation yield, and a device therefor can be provided.