METHOD FOR PRODUCING 1,6-HEXANEDIOL
    7.
    发明申请
    METHOD FOR PRODUCING 1,6-HEXANEDIOL 有权
    1,6-己二醇的制备方法

    公开(公告)号:US20120022298A1

    公开(公告)日:2012-01-26

    申请号:US13257496

    申请日:2010-03-29

    IPC分类号: C07C29/14

    摘要: The invention relates to a process for preparing 1,6-hexanediol, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol.

    摘要翻译: 本发明涉及一种制备1,6-己二醇的方法,该方法优选具有至少99.5%的纯度,特别是基本上不含1,4-环己二醇的羧酸混合物,其作为催化剂的副产物获得 通过氧化或含氧气体将环己烷氧化成环己酮/环己醇,并通过水解提取反应混合物,通过氢化羧酸混合物,将子流酯化并氢化成己二醇。

    Method for producing 1,6-hexanediol and caprolactone
    10.
    发明授权
    Method for producing 1,6-hexanediol and caprolactone 有权
    1,6-己二醇和己内酯的制备方法

    公开(公告)号:US08471042B2

    公开(公告)日:2013-06-25

    申请号:US13258166

    申请日:2010-03-31

    IPC分类号: C07D313/00 C07C27/04

    摘要: The invention relates to a process for preparing 1,6-hexanediol and caprolactone, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol and cyclizing 6-hydroxycaproic ester, the 1,4-cyclohexanediols being removed either in the course of fractionation of the esterification mixture or last from the caprolactone.

    摘要翻译: 本发明涉及一种制备1,6-己二醇和己内酯的方法,该方法优选具有至少99.5%的纯度,特别是基本上不含1,4-环己烷二醇的羧酸混合物,其作为副产物 通过氢化羧酸混合物,将子流酯化和氢化成己二醇并使6-羟基己酸酯环化,使1,4-环己酮与环氧丙烷/环氧丙烷的催化氧化反应, 在酯化混合物分馏或最后由己内酯过程中除去环己烷二醇。