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    Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides
    1.
    发明公开
    Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides 失效
    Verfahren zur Entfernung von Jodidverbindungen ausCarbonsäurenundCarbonsäurenanhydriden。

    公开(公告)号：EP0538040A2

    公开(公告)日：1993-04-21

    申请号：EP92309425.4

    申请日：1992-10-15

    申请人： BP Chemicals Limited ,  THE BRITISH PETROLEUM COMPANY P.L.C.

    发明人： Jones, Michael David ,  Watson, Derrick John ,  Williams, Bruce Leo

    IPC分类号： C07C51/47 ,  C07C51/573 ,  C07C53/08 ,  C07C53/12

    CPC分类号： C07C51/573 ,  C07C51/47

    摘要： In a process for removing iodide compounds from a liquid composition comprising carboxylic acids having 2 to 6 carbon atoms or anhydrides thereof, by passing the liquid composition through a silver, mercury, palladium and/or rhodium-exchanged strong acid cation exchange resin, prior to contacting with the metal-exchanged resin the composition is contacted with a cation exchanger in the acid form to remove at least a portion of the metal ion contaminants in the liquid composition which have been found to displace the silver, mercury, palladium and/or rhodium from the metal-exchanged resin.

    摘要翻译： 在通过使液体组合物通过银，汞，钯和/或铑交换的强酸阳离子交换树脂从包含具有2至6个碳原子的羧酸或其酸酐的液体组合物中除去碘化合物的方法中， 与金属交换的树脂接触，该组合物与酸形式的阳离子交换剂接触以除去液态组合物中已被发现置换银，汞，钯和/或铑的至少一部分金属离子污染物 从金属交换的树脂。

    Process for the production of acetic acid
    7.
    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：EP1002785A1

    公开(公告)日：2000-05-24

    申请号：EP99308792.3

    申请日：1999-11-04

    申请人： BP Chemicals Limited

    发明人： Watson, Derrick John ,  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 the continuous production of acetic acid by feeding methanol and/or a reactive derivative thereof and carbon monoxide to a carbonylation reactor wherein there is maintained a liquid reaction composition comprising methyl acetate, water, Group VIII noble metal carbonylation catalyst, hydrocarbyl halide co-catalyst, optionally at least one promoter, and acetic acid, the methyl acetate concentration in the liquid reaction composition is maintained at a pre-determined value by monitoring the ratio of methanol and/or reactive derivative thereof to carbon monoxide being converted to acetic acid and adjusting the methanol and/or reactive derivative thereof feed rate in response thereto in a manner such that the methyl acetate concentration is maintained at the pre-determined value. This can assist in reducing build up of methyl acetate in the reactor during periods of loss of activity.

    摘要翻译： 在通过将甲醇和/或其反应性衍生物和一氧化碳进料到羰基化反应器中连续生产乙酸的方法中，其中保持包含乙酸甲酯，水，第VIII族贵金属羰基化催化剂，烃基卤化物 助催化剂，任选的至少一种促进剂和乙酸，通过监测甲醇和/或其活性衍生物与一氧化碳转化为乙酸的比率，液体反应组合物中的乙酸甲酯浓度保持在预定值 并且以使得乙酸甲酯浓度保持在预定值的方式响应于此来调节甲醇和/或其活性衍生物的进料速率。 这可以有助于减少反应器失去活性期间反应器中乙酸甲酯的堆积。

    Carbonylation process
    8.
    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％ 。