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    CATALYST STABILITY AND CORROSION PREVENTION IN ACETIC ACID PRODUCTION PROCESS
    73.
    发明申请
    CATALYST STABILITY AND CORROSION PREVENTION IN ACETIC ACID PRODUCTION PROCESS 有权
    乙酸生产过程中的催化稳定性和腐蚀防治

    公开(公告)号：US20170008827A1

    公开(公告)日：2017-01-12

    申请号：US15272683

    申请日：2016-09-22

    申请人： LyondellBasell Acetyls, LLC

    发明人： Noel C. Hallinan ,  Brian A. Salisbury ,  Daniel F. White ,  David L. Ramage ,  Jared T. Fern

    IPC分类号： C07C51/12 ,  B01J27/20

    CPC分类号： C07C51/12 ,  B01J27/20 ,  C07C53/08

    摘要： Processes for producing acetic acid herein generally include contacting methanol and carbon monoxide in the presence of a reaction medium under carbonylation conditions sufficient to form acetic acid, the reaction medium including a carbonylation catalyst selected from rhodium catalysts, iridium catalysts and palladium catalysts; from 1 wt. % to 14 wt. % water; and a plurality of additives, in-situ generated derivatives of the plurality of additives or combinations thereof; the plurality of additives including a first additive including one or more phosphine oxides and a second additive selected from heteropolyacids, metal salts and combinations thereof, the heteropolyacids represented by the formula HnM12XO40, wherein H is hydrogen, M is selected from tungsten and molybdenum, X is selected from phosphorous and silicon and O is oxygen and n is 3 or 4, the metal salts are selected from transition metal salts, lanthanide metal salts and combinations thereof; and recovering acetic acid from the process.

    摘要翻译： 本文生产乙酸的方法通常包括在足以形成乙酸的羰基化条件下在反应介质存在下使甲醇和一氧化碳接触，反应介质包括选自铑催化剂，铱催化剂和钯催化剂的羰基化催化剂; 从1重量％ ％至14重量％ ％ 水; 和多种添加剂，多种添加剂的原位产生的衍生物或其组合; 所述多种添加剂包括包含一种或多种氧化膦的第一添加剂和选自杂多酸，金属盐及其组合的第二添加剂，由式HnM12XO40表示的杂多酸，其中H是氢，M选自钨和钼，X 选自磷和硅，O是氧，n是3或4，金属盐选自过渡金属盐，镧系金属盐及其组合; 并从该过程中回收乙酸。

    PROCESS FOR FLASHING A REACTION MEDIUM
    74.
    发明申请
    PROCESS FOR FLASHING A REACTION MEDIUM 审中-公开
    闪电反应介质的方法

    公开(公告)号：US20170001938A1

    公开(公告)日：2017-01-05

    申请号：US15089994

    申请日：2016-04-04

    申请人： Celanese International Corporation

    发明人： Ronald D. SHAVER ,  Yaw-Hwa LIU ,  Mark O. SCATES

    IPC分类号： C07C51/12 ,  C07C41/01 ,  B01J27/20 ,  C07C51/44

    CPC分类号： C07C51/12 ,  B01D3/009 ,  B01J27/20 ,  B01J31/20 ,  B01J31/26 ,  B01J2231/34 ,  C07C41/01 ,  C07C51/44 ,  C07C53/08

    摘要： A process for producing acetic acid is disclosed in which the methyl iodide concentration is maintained in the vapor product stream formed in a flashing step. The methyl iodide concentration in the vapor product stream ranges from 24 to less than 36 wt. % methyl iodide, based on the weight of the vapor product stream. In addition, the acetaldehyde concentration is maintained within the range from 0.005 to 1 wt. % in the vapor product stream. The vapor product stream is distilled in a first column to obtain an acetic acid product stream comprising acetic acid and up to 300 wppm hydrogen iodide and/or from 0.1 to 6 wt. % methyl iodide and an overhead stream comprising methyl iodide, water and methyl acetate.

    摘要翻译： 公开了一种制备乙酸的方法，其中甲基碘浓度保持在闪蒸步骤中形成的蒸汽产物流中。 蒸气产物流中的甲基碘浓度范围为24至小于36重量％。 基于蒸气产物流的重量。 此外，乙醛浓度保持在0.005至1重量％的范围内。 蒸气产物流中的％。 将蒸气产物流在第一塔中蒸馏以获得包含乙酸和至多300wppm碘化氢和/或0.1-6wt。％的乙酸产物流。 ％甲基碘和包含甲基碘，水和乙酸甲酯的塔顶物流。

    Catalyst stability and corrosion prevention in acetic acid production process
    75.
    发明授权
    Catalyst stability and corrosion prevention in acetic acid production process 有权
    催化剂在乙酸生产过程中的稳定性和防腐蚀性

    公开(公告)号：US09475746B2

    公开(公告)日：2016-10-25

    申请号：US14492529

    申请日：2014-09-22

    申请人： LyondellBasell Acetyls, LLC

    发明人： Noel C. Hallinan ,  Brian A. Salisbury ,  Daniel F. White ,  David L. Ramage ,  Jared T. Fern

    IPC分类号： C07C51/12

    CPC分类号： C07C51/12 ,  B01J27/20 ,  C07C53/08

    摘要： Processes for producing acetic acid herein generally include contacting methanol and carbon monoxide in the presence of a reaction medium under carbonylation conditions sufficient to form acetic acid, the reaction medium including a carbonylation catalyst selected from rhodium catalysts, iridium catalysts and palladium catalysts; from 1 wt. % to 14 wt. % water; and a plurality of additives, in-situ generated derivatives of the plurality of additives or combinations thereof; the plurality of additives including a first additive including one or more phosphine oxides and a second additive selected from heteropolyacids, metal salts and combinations thereof, the heteropolyacids represented by the formula HnM12XO40, wherein H is hydrogen, M is selected from tungsten and molybdenum, X is selected from phosphorous and silicon and O is oxygen and n is 3 or 4, the metal salts are selected from transition metal salts, lanthanide metal salts and combinations thereof; and recovering acetic acid from the process.

    摘要翻译： 本文生产乙酸的方法通常包括在足以形成乙酸的羰基化条件下在反应介质存在下使甲醇和一氧化碳接触，反应介质包括选自铑催化剂，铱催化剂和钯催化剂的羰基化催化剂; 从1重量％ ％至14重量％ ％ 水; 和多种添加剂，多种添加剂的原位产生的衍生物或其组合; 所述多种添加剂包括包含一种或多种氧化膦的第一添加剂和选自杂多酸，金属盐及其组合的第二添加剂，由式HnM12XO40表示的杂多酸，其中H为氢，M选自钨和钼，X 选自磷和硅，O是氧，n是3或4，金属盐选自过渡金属盐，镧系金属盐及其组合; 并从该过程中回收乙酸。