Process for the Production of Acetic Acid
    2.
    发明申请
    Process for the Production of Acetic Acid 有权
    醋酸生产工艺

    公开(公告)号:US20100228051A1

    公开(公告)日:2010-09-09

    申请号:US12225244

    申请日:2007-03-16

    IPC分类号: C07C51/12

    摘要: A process for the production of acetic acid which process comprises carbonylating methanol and/or a reactive derivative thereof in a liquid reaction composition in which there exists in equilibrium, at least a first soluble catalytic species and a second soluble catalytic species, wherein the first catalytic species is the least catalytically active or promotionally active of the species existing in the equilibrium, comprises determining (i) the concentration of the first catalytic species and/or (ii) the ratio of the concentration of the first catalytic species to the concentration of the second catalytic species in equilibrium therewith, present in the liquid reaction composition and/or a present in a liquid fraction in a separation step and maintaining (i) and/or (ii) below a pre-determined value, preferably by adjusting the concentration of at least the first catalytic species present in the liquid reaction composition and/or liquid fraction.

    摘要翻译: 一种生产乙酸的方法,该方法包括在平衡存在的液体反应组合物中羰基化甲醇和/或其活性衍生物,至少第一可溶性催化物质和第二可溶性催化物质,其中第一催化剂 物种是存在于平衡中的物质的催化活性或促进活性最低的物质,包括确定(i)第一催化物质的浓度和/或(ii)第一催化物质的浓度与第一催化物质的浓度之比 存在于液体反应组合物中的第二催化物质和/或在分离步骤中存在于液体馏分中,并且将(i)和/或(ii)维持在预定值以下,优选通过调节浓度 至少第一催化物质存在于液体反应组合物和/或液体馏分中。

    Process for the production of acetic acid
    4.
    发明授权
    Process for the production of acetic acid 有权
    乙酸生产工艺

    公开(公告)号:US08697907B2

    公开(公告)日:2014-04-15

    申请号:US12225244

    申请日:2007-03-16

    IPC分类号: C07C51/12

    摘要: Process for producing acetic acid by carbonylating methanol and/or a reactive derivative thereof in a liquid reaction composition in which there exists in equilibrium, at least a first soluble catalytic species and a second soluble catalytic species. The first catalytic species is the least catalytically active or promotionally active of the species existing in the equilibrium. The process includes determining (i) the concentration of the first catalytic species and/or (ii) the ratio of the concentration of the first catalytic species to the concentration of the second catalytic species in equilibrium therewith, present in the liquid reaction composition and/or a present in a liquid fraction in a separation step, and maintaining (i) and/or (ii) below a pre-determined value.

    摘要翻译: 通过在平衡状态下存在的液体反应组合物中将甲醇和/或其活性衍生物羰基化制备乙酸的方法,至少第一可溶性催化物质和第二可溶性催化物质。 第一种催化物质是存在于平衡物质中最少的催化活性或促进活性物质。 该方法包括确定(i)第一催化物质的浓度和/或(ii)存在于液体反应组合物中的第一催化物质的浓度与其平衡的第二催化物质的浓度的比例和/ 或在分离步骤中存在于液体馏分中,并且将(i)和/或(ii)维持在预定值以下。

    Process for the production of acetic acid
    6.
    发明授权
    Process for the production of acetic acid 失效
    乙酸生产工艺

    公开(公告)号:US07692040B2

    公开(公告)日:2010-04-06

    申请号:US10528387

    申请日:2003-09-03

    IPC分类号: C07C51/12

    CPC分类号: C07C51/12 C07C53/08

    摘要: A process for the production of acetic acid by carbonylating methanol and/or a reactive derivative thereof with carbon monoxide in at least one carbonylation reaction zone containing a liquid reaction composition comprising an iridium carbonylation catalyst, methyl iodide co-catalyst, a finite concentration of water, acetic acid, methyl acetate, at least one promoter selected from ruthenium, osmium and rhenium and at least one catalyst system stabiliser selected from indium, cadmium, mercury, gallium and zinc and wherein the molar ratio of iridium:promoter:stabiliser in the liquid reaction composition is maintained in the range 1:(>2 to 15):(0.25 to 12).

    摘要翻译: 一种通过在含有铱羰基化催化剂,甲基碘助催化剂,有限浓度的水的液体反应组合物的至少一个羰基化反应区中使甲醇和/或其活性衍生物与一氧化碳羰基化来生产乙酸的方法 ,乙酸,乙酸甲酯,至少一种选自钌,锇和铼的促进剂和至少一种选自铟,镉,汞,镓和锌的催化剂体系稳定剂,其中铱:促进剂:稳定剂在液体中的摩尔比 反应组合物保持在1:(> 2〜15):(0.25〜12)的范围内。

    Process for the production of acetic acid
    7.
    发明授权
    Process for the production of acetic acid 失效
    乙酸生产工艺

    公开(公告)号:US06472558B1

    公开(公告)日:2002-10-29

    申请号:US09699440

    申请日:2000-10-31

    IPC分类号: C07C5112

    CPC分类号: C07C51/12 C07C53/08

    摘要: A process for the production of acetic acid by reacting carbon monoxide with methanol and/or a reactive derivative thereof in a liquid reaction composition comprising an iridium carbonylation catalyst, methyl iodide, methyl acetate, water and acetic acid characterized in that there is also present in the reaction composition a polydentate phosphine oxide compound in an amount of less than 10 mol per gram atom of iridium.

    摘要翻译: 一种通过使一氧化碳与甲醇和/或其反应性衍生物在包含铱羰基化催化剂,甲基碘,乙酸甲酯,水和乙酸的液体反应组合物中反应制备乙酸的方法,其特征在于还存在 所述反应组合物为每克原子铱少于10摩尔量的多齿氧化膦化合物。