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    Process for the Production of Acetic Acid
    2.
    发明申请
    Process for the Production of Acetic Acid 审中-公开

    公开(公告)号：US20190210952A1

    公开(公告)日：2019-07-11

    申请号：US16308332

    申请日：2017-06-08

    申请人： BP Chemicals Limited

    发明人： Sean Anthony Hennigan

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

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

    摘要： A process for the production of acetic acid which process comprises the steps of. (a) introducing methanol and/or a reactive derivative thereof and carbon monoxide into a first reaction zone containing a liquid reaction composition comprising a carbonylation catalyst, optionally a carbonylation catalyst promoter, methyl iodide, methyl acetate, acetic acid and water, (b) withdrawing at least a portion of the liquid reaction composition from the first reaction zone; (c) passing at least a portion of the withdrawn liquid reaction composition to a second reaction zone, wherein a gas feed comprising carbon monoxide is added to the liquid reaction composition withdrawn from the first reaction zone at one or more points upstream of the second reaction zone, one or more points within the second reaction zone, or a combination of one or more points upstream of the second reaction zone and one or more points within the second reaction zone; and (d) passing at least a portion of the liquid reaction composition from the second reaction zone into a flash separation zone to form: a vapour fraction, which comprises acetic acid, methyl iodide, methyl acetate and low pressure off-gas; and, a liquid fraction, which comprises carbonylation catalyst and optional carbonylation catalyst promoter; wherein the flow rate in kg of gas feed comprising carbon monoxide which is added to the second reaction zone per tonne of liquid reaction composition being passed to the flash separation zone (kg/te), is in the range of from 0.5FG to 1.2FG, wherein FG is defined according to equation 1: (1) FG=(0.296086962×tr)+(0.369636×RR)+(0.295878701×GP0,8134)−23.3448 wherein, tr is the residence time (seconds) of the liquid reaction composition within the second reaction zone which is calculated using equation 2: (2) tr=V2/Ff wherein, V2 is the volume of the second reaction zone (m3) and Ff is the volumetric flow rate of liquid reaction composition to the flash separation zone (m3/s), RR is the reaction rate of the liquid reaction composition passed to the second reaction zone at the temperature at which it is withdrawn from the first reaction zone (mol/litre/hour), and Gp is the purity of the gas feed comprising carbon monoxide which is added to the second reaction zone expressed as the mass fraction of carbon monoxide in the gas feed.

    Air and water tolerant catalyst
    8.
    发明授权
    Air and water tolerant catalyst 有权
    耐空气和耐水催化剂

    公开(公告)号：US08802796B2

    公开(公告)日：2014-08-12

    申请号：US13441545

    申请日：2012-04-06

    申请人： Paul Oblad ,  Matthew S. Winston ,  Jay A. Labinger ,  John E. Bercaw ,  Sander Gaemers

    发明人： Paul Oblad ,  Matthew S. Winston ,  Jay A. Labinger ,  John E. Bercaw ,  Sander Gaemers

    IPC分类号： C08F4/80 ,  C08F4/70

    CPC分类号： B01J31/2226 ,  B01J31/1805 ,  B01J2231/12 ,  B01J2531/0216 ,  B01J2531/824

    摘要： A catalyst and/or precatalyst for olefin oligomerization comprising one or more coordination complexes having one or more central palladium metal atoms. Each palladium atom is bonded to four ligand donor atoms. Two of the donor atoms are group 16 elements and two of the donor atoms are group 15 elements. Also provided are neutral or cationic coordination complex dimers, so that the two palladium atoms are both bonded to one or two donor atoms from group 16, and each palladium atom is bonded to two donor atoms from group 15. In some instances, each of the two group 16 donor atoms are oxygen and each of the four group 15 donor atoms are nitrogen.

    摘要翻译： 一种用于烯烃低聚的催化剂和/或预催化剂，其包含一种或多种具有一个或多个中心钯金属原子的配位络合物。 每个钯原子键合到四个配体供体原子。 两个供体原子是16族元素，两个供体原子是15族元素。 还提供了中性或阳离子配位络合物二聚体，使得两个钯原子都与第16族的一个或两个供体原子键合，并且每个钯原子与第15族键合到两个供体原子。在一些情况下， 两个16族供体原子是氧，四个15族供体原子中的每一个都是氮。