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    Process for the preparation of high purity cyclohexane
    2.
    发明授权
    Process for the preparation of high purity cyclohexane 失效
    制备高纯度环己烷的方法

    公开(公告)号：US3586728A

    公开(公告)日：1971-06-22

    申请号：US3586728D

    申请日：1969-06-11

    Applicant: TORAY INDUSTRIES

    Inventor： OTANI SEIYA ,  IWAMURA TAKAO ,  YAMAZAKI TORU ,  NOGUCHI YOSHIO ,  AKATSUKA TAKEAKI

    IPC: C07C5/10

    CPC classification number: C07C5/10 ,  C07C2601/14 ,  C07C13/18

    Abstract: TEMERPATURE IN THE INITIAL CATALYST REACTION LAYER IS 165-220*C.

    HIGH PURITY CYCLOHEXANE IS PRODUCED BY HYDROGENATION OF BENZENE IN A PLURALITY OF SERIES-CONNECTED CATALYTIC REACTORS WHEREIN BENZENE, PREFERABLY FREE OF IMPURITIES, IS FED TO THE FIRST REACTOR, HYDROGENATION GAS IS RECYCLED FROM THE LAST TO THE FIRST REACTOR AND AT A POINT INTERMEDIATE THE FIRST AND LAST REACTOR, A PORTION OF THE PARTIALLY DEPLETED HYDROGENATION GAS IS WITHDRAWN AND FRESH HYDROGENATION GAS, I.E., A GAS HAVING A HIGH HYDROGEN CONTENT, FED TO THE SYSTEM. THE MOLE RATIO OF HYDROGEN TO BENZENE FEED IS 3-3.8:1, THE VOLUMETRIC RATIO OF HYDROGENATION GAS NOT WITHDRAWN TO THAT WHICH IS WITHDRAWN AT THE DEPLETED HYDROGENATION GAS SEPARATOR IS 6-80:1, AND THE

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