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    INTEGRATED PROCESS FOR THE MANUFACTURE OF ALKENYL CARBOXYLATES
    1.
    发明授权
    INTEGRATED PROCESS FOR THE MANUFACTURE OF ALKENYL CARBOXYLATES 有权
    集成方法生产烯的

    公开(公告)号：EP1463709B1

    公开(公告)日：2009-08-26

    申请号：EP02805817.0

    申请日：2002-12-04

    申请人： BP Chemicals Limited

    发明人： Clarke, Robert William ,  Roberts, Mark Stephen

    IPC分类号： C07C67/05 ,  C07C69/01 ,  C07C51/215 ,  C07C53/08

    CPC分类号： C07C67/54 ,  C07C5/48 ,  C07C51/215 ,  C07C51/46 ,  C07C67/055 ,  Y02P20/125 ,  Y02P20/582 ,  C07C69/15 ,  C07C53/08 ,  C07C11/04

    摘要： An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, optionally the corresponding alkene and optionally water, in the presence of a catalyst to produce a stream comprising alkene, carboxylic acid and water; (b) separating at least a portion of the stream from step (a) into a fraction comprising the alkene and a fraction comprising the carboxylic acid and water; (c) contacting in a second reaction zone at least a portion of said alkene fraction produced in step (b), a carboxylic acid and a molecular oxygen-containing gas, in the presence of a catalyst to produce a product stream comprising an alkenyl carboxylate, water and carboxylic acid; (d) separating at least a portion of the product stream from step (c) and at least a portion of the carboxylic acid and water fraction produced in step (b) by azeotropic distillation into an overhead fraction comprising the alkenyl carboxylate and a base fraction comprising the carboxylic acid; (e) recovering the alkenyl carboxylate from the overhead fraction separated in step (d).

    INTEGRATED PROCESS FOR THE MANUFACTURE OF ALKENYL CARBOXYLATES
    3.
    发明公开
    INTEGRATED PROCESS FOR THE MANUFACTURE OF ALKENYL CARBOXYLATES 有权
    集成方法生产烯的

    公开(公告)号：EP1463709A1

    公开(公告)日：2004-10-06

    申请号：EP02805817.0

    申请日：2002-12-04

    申请人： BP Chemicals Limited

    发明人： Clarke, Robert William ,  Roberts, Mark Stephen

    IPC分类号： C07C67/05 ,  C07C69/01 ,  C07C51/215 ,  C07C53/08

    CPC分类号： C07C67/54 ,  C07C5/48 ,  C07C51/215 ,  C07C51/46 ,  C07C67/055 ,  Y02P20/125 ,  Y02P20/582 ,  C07C69/15 ,  C07C53/08 ,  C07C11/04

    摘要： An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, optionally the corresponding alkene and optionally water, in the presence of a catalyst to produce a stream comprising alkene, carboxylic acid and water; (b) separating at least a portion of the stream from step (a) into a fraction comprising the alkene and a fraction comprising the carboxylic acid and water; (c) contacting in a second reaction zone at least a portion of said alkene fraction produced in step (b), a carboxylic acid and a molecular oxygen-containing gas, in the presence of a catalyst to produce a product stream comprising an alkenyl carboxylate, water and carboxylic acid; (d) separating at least a portion of the product stream from step (c) and at least a portion of the carboxylic acid and water fraction produced in step (b) by azeotropic distillation into an overhead fraction comprising the alkenyl carboxylate and a base fraction comprising the carboxylic acid; (e) recovering the alkenyl carboxylate from the overhead fraction separated in step (d).

    Process for purifying a process stream
    6.
    发明公开
    Process for purifying a process stream 审中-公开
    Verfahren zum Reinigen eines Prozessstromes

    公开(公告)号：EP0992483A1

    公开(公告)日：2000-04-12

    申请号：EP99307482.2

    申请日：1999-09-22

    申请人： BP Chemicals Limited

    发明人： Bristow, Timothy Crispin ,  Clarke, Robert William ,  Carr, Michael Peter ,  Kitchen, Simon James

    IPC分类号： C07C67/54 ,  C07C67/05

    CPC分类号： C07C67/54 ,  C07C69/01 ,  C07C69/14 ,  C07C69/15

    摘要： In a process for removing ethyl acetate from a process stream comprising vinyl acetate, acetic acid, water and an ethyl acetate impurity, by the steps of: (a) introducing the process stream to a distillation column, (b) distilling the process stream to obtain a vinyl acetate-containing fraction at an upper end of the distillation column and an acetic acid-containing fraction at a lower end of said distillation column, and (c) withdrawing, a side stream comprising the ethyl acetate from an intermediate region of the distillation column, it has been found that by withdrawing the side stream as a vapour, the concentration of ethyl acetate obtainable from the distillation column is higher than the concentration of ethyl acetate obtainable by withdrawing the side stream as a liquid and is greater than 10 % by weight of the side stream.

    摘要翻译： 在通过以下步骤从包含乙酸乙烯酯，乙酸，水和乙酸乙酯杂质的工艺流中除去乙酸乙酯的方法中：（a）将工艺流引入蒸馏塔，（b）将工艺流蒸馏至 在所述蒸馏塔的上端获得含乙酸乙烯酯的馏分和在所述蒸馏塔的下端含有含乙酸的馏分，和（c）从所述蒸馏塔的中间区域提取包含所述乙酸乙酯的副产物流 蒸馏塔中，已经发现，通过将副反应物作为蒸气排出，从蒸馏塔获得的乙酸乙酯的浓度高于通过将侧流作为液体取出而获得的乙酸乙酯的浓度大于10％ 的侧流重量。