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    OXIDATION REACTION FOR PRODUCING AROMATIC CARBOXYLIC ACIDS
    1.
    发明申请
    OXIDATION REACTION FOR PRODUCING AROMATIC CARBOXYLIC ACIDS 审中-公开
    用于生产芳香羧酸的氧化反应

    公开(公告)号：WO2008070365A2

    公开(公告)日：2008-06-12

    申请号：PCT/US2007083317

    申请日：2007-11-01

    Applicant: INVISTA TECH SARL ,  FRAGA-DUBREUIL JOAN ,  HOUSLEY SAMUEL DUNCAN ,  PARTENHEIMER WALTER ,  POLIAKOFF MARTYN

    Inventor： FRAGA-DUBREUIL JOAN ,  HOUSLEY SAMUEL DUNCAN ,  PARTENHEIMER WALTER ,  POLIAKOFF MARTYN

    IPC: C07C51/265 ,  C07C63/16 ,  C07C63/24 ,  C07D213/79

    CPC classification number: C07C51/265 ,  C07D213/803 ,  Y02P20/544 ,  C07C63/15 ,  C07C63/16 ,  C07C63/24 ,  C07C63/307 ,  C07C63/06 ,  C07C63/313 ,  C07C63/26

    Abstract: A method of minimising or preventing catalyst loss and/or the precipitation of metal oxide in a catalytic synthetic oxidation reaction in an aqueous solvent comprising water under supercritical or near-supercritical conditions wherein during the oxidation reaction an oxidant is present and a metal salt is present as a catalyst, said method comprising the step of adding an acidic component comprising one or more acid(s) into the reaction such that contact of at least part of said metal salt with said oxidant is in the presence of said acidic component, particularly wherein the oxidation reaction is a process for the production of an aromatic carboxylic acid, said process comprising contacting in the presence of a catalyst, within a reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions.

    Abstract translation: 在超临界或近超临界条件下在包含水的水性溶剂中催化剂合成氧化反应中催化剂损失和/或金属氧化物析出的方法，其中在氧化反应期间存在氧化剂和存在金属盐 作为催化剂，所述方法包括将包含一种或多种酸的酸性组分加入到反应中的步骤，使得至少部分所述金属盐与所述氧化剂的接触在所述酸性组分存在下，特别是其中 氧化反应是一种生产芳族羧酸的方法，所述方法包括在催化剂存在下，在反应器内，一种或多种芳族羧酸的前体与氧化剂接触，所述接触与所述前体 和在超临界条件或接近超临界条件下包含水的水性溶剂中的氧化剂。

    4.
    发明专利
    未知

    公开(公告)号：AT375974T

    公开(公告)日：2007-11-15

    申请号：AT03763099

    申请日：2003-07-02

    Applicant: INVISTA TECH SARL

    Inventor： THOMAS WILLIAM BARRY ,  WHISTON KEITH ,  GARCIA-VERDUGO EDUARDO CEPEDA ,  HAMLEY PAUL ANTHONY ,  POLIAKOFF MARTYN

    IPC: C07C51/265 ,  C07B61/00 ,  C07C51/285 ,  C07C63/16 ,  C07C63/24 ,  C07C63/26

    Abstract: A process for the simultaneous or sequential production in the same reaction zone of two or more dicarboxylic acids selected from orthophthalic acid, isophthalic acid and terephthalic acid comprising contacting simultaneously or sequentially in the presence of a catalyst, one or more precursors of each of at least two dicarboxylic acids selected from orthophthalic acid, terephthalic acid and isophthalic acid with an oxidant, such contact being effected with said precursors and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point is disclosed. In preferred embodiments, the process is for the simultaneous or sequential production in the same reaction zone of orthophthalic acid, terephthalic acid and isophthalic acid.

    REACCION DE OXIDACION PARA PRODUCIR ACIDOS CARBOXILICOS AROMATICOS
    9.
    发明专利
    REACCION DE OXIDACION PARA PRODUCIR ACIDOS CARBOXILICOS AROMATICOS 未知

    公开(公告)号：AR064594A1

    公开(公告)日：2009-04-15

    申请号：ARP070104895

    申请日：2007-11-02

    Applicant: INVISTA TECH SARL

    Inventor： PARTENHEIMER WALTER ,  FRAGA-DUBREUIL JOAN ,  POLIAKOFF MARTYN ,  HOUSLEY SAMUEL

    IPC: C07C51/265 ,  C07C63/16

    Abstract: Un método para minimizar o prevenir la pérdida de catalizador y/o la precipitacion de oxido metálico en un proceso para la produccion de un ácido carboxílico aromático, donde dicho proceso comprende poner en contacto uno o más precursores del ácido carboxílico aromático con un oxidante en un reactor, en presencia de un catalizador que comprende una sal metálica, donde dicho contacto se efectua entre dicho(s) precursor(es) y el oxidante en un solvente acuoso que comprende agua bajo condiciones supercríticas o casi supercríticas, donde (i) dicho método comprende el paso de agregar un componente ácido que comprende uno o más ácidos en la zona de reaccion de oxidacion; (ii) el contacto de al menos parte de dicho catalizador con dicho oxidante es en presencia de dicho componente ácido; y (iii) dicho componente ácido comprende uno o más ácidos orgánicos.

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