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    Carbonylation process
    4.
    发明公开
    Carbonylation process 有权
    Carbonylierungsverfahren

    公开(公告)号：EP0985653A1

    公开(公告)日：2000-03-15

    申请号：EP99306704.0

    申请日：1999-08-24

    申请人： BP Chemicals Limited

    发明人： Clode, Kirsten Everald ,  Watson, Derrick John

    IPC分类号： C07C51/12 ,  C07C51/44 ,  C07C51/46 ,  C07C53/08

    CPC分类号： C07C51/44 ,  C07C51/12 ,  C07C51/46 ,  C07C53/08

    摘要： A process for removing higher organic iodides, including hexyl iodide, from an acetic acid product obtained by carbonylating methanol and/or a reactive derivative thereof in the presence of a finite concentration of water, Group VIII noble metal catalyst, methyl iodide as co-catalyst, and optionally a catalyst promoter, which process includes the step of subjecting an aqueous composition comprising acetic acid and at least one higher organic iodide to distillation in a column, or section of a column, separating water overhead from a dry acetic acid fraction, wherein the water concentration on the feed tray of the column, or section of the column, is greater than 8% by weight and the water concentration in the head of the column, and/or section of the column, is greater than 70% by weight.

    摘要翻译： 从有限浓度的水，VIII族贵金属催化剂，甲基碘作为助催化剂存在下，通过羰基化甲醇和/或其活性衍生物得到的乙酸产物中除去较高有机碘化物（包括己基碘）的方法 和任选的催化剂促进剂，该方法包括使含有乙酸和至少一种较高有机碘化物的水性组合物在柱或塔段中蒸馏的步骤，将塔顶馏出物与干燥乙酸馏分分离，其中 塔的进料托盘或塔的截面上的水浓度大于8重量％，塔的头部和/或塔的部分中的水浓度大于70重量％ 。

    Process for the production of acetic acid
    8.
    发明公开
    Process for the production of acetic acid 有权
    生产乙酸的方法

    公开(公告)号：EP0999198A1

    公开(公告)日：2000-05-10

    申请号：EP99308575.2

    申请日：1999-10-28

    申请人： BP Chemicals Limited

    发明人： Clode, Kirsten Everald ,  Muskett, Michael James

    IPC分类号： C07C51/12 ,  C07C53/08

    CPC分类号： C07C51/12 ,  C07C53/08

    摘要： In a process for production of acetic acid from methanol and/or a reactive derivative thereof and carbon monoxide in a carbonylation reactor in which there is maintained a liquid reaction composition comprising an iridium catalyst, methyl iodide co-catalyst, a finite amount of water, methyl acetate and optionally one or more promoters, the inventory of the liquid reaction composition in the reactor is maintained by recycling to the reactor at least a portion of an acetic acid-rich stream or streams recovered from the acetic acid product recovery distillation zone.

    摘要翻译： 在由甲醇和/或其反应性衍生物和羰基化反应器中的一氧化碳生产乙酸的方法中，其中保持含有铱催化剂，甲基碘助催化剂，有限量的水， 乙酸甲酯和任选的一种或多种促进剂的情况下，通过将至少一部分富乙酸物流或从乙酸产物回收蒸馏区回收的物流循环到反应器来维持反应器中液体反应组合物的存量。