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8 条记录 (耗时 0.023 秒)

    Metal-compound catalyzed processes
    6.
    发明授权
    Metal-compound catalyzed processes 失效
    金属化合物催化工艺

    公开(公告)号：US06984668B1

    公开(公告)日：2006-01-10

    申请号：US10048595

    申请日：2000-08-02

    申请人： Graham Ronald Eastham ,  Raymond Anthony Hadden ,  David William Johnson

    发明人： Graham Ronald Eastham ,  Raymond Anthony Hadden ,  David William Johnson

    IPC分类号： B01F17/00 ,  B01F3/08 ,  C09K3/00 ,  C07C67/38 ,  C07C51/14

    CPC分类号： B01J35/0013 ,  B01J31/28 ,  C07C67/38 ,  C07C69/24

    摘要： A liquid-phase chemical reaction medium comprises one or more reactants, optionally in the presence of a reaction product(s) and one or more solvents, diluents or other form of liquid carrier, a catalyst system comprising at least a metal or metal compound and optionally further compounds such as ligands or complexing agents; characterized in that the reaction medium further comprises a polymeric dispersant dissolved in said liquid carrier, said polymeric dispersant being capable of stabilizing a colloidal suspension of particles of said metal or metal compound within the liquid carrier. The presence of the polymeric dispersant enables metal formed by catalyst deactivation to be more easily recovered and recycled. Preferably, the polymeric dispersant has sufficiently acidic or basic functionality to stabilize the colloidal suspension of said metal or metal compound.

    摘要翻译： 液相化学反应介质包括一种或多种反应物，任选地在反应产物和一种或多种溶剂，稀释剂或其它形式的液体载体存在下，至少包含金属或金属化合物的催化剂体系和 任选的其它化合物如配体或络合剂; 其特征在于所述反应介质还包含溶解在所述液体载体中的聚合物分散剂，所述聚合物分散剂能够稳定所述金属或金属化合物颗粒在胶体载体内的胶体悬浮液。 聚合物分散剂的存在使得通过催化剂失活形成的金属更容易回收和再循环。 优选地，聚合物分散剂具有足够的酸性或碱性官能度以稳定所述金属或金属化合物的胶体悬浮液。

    Process for carbonylation of ethylene
    7.
    发明授权
    Process for carbonylation of ethylene 有权
    乙烯羰基化方法

    公开(公告)号：US06284919B1

    公开(公告)日：2001-09-04

    申请号：US09396637

    申请日：1999-09-15

    申请人： Jean Margaret Pearson ,  Raymond Anthony Hadden

    发明人： Jean Margaret Pearson ,  Raymond Anthony Hadden

    IPC分类号： C07C6738

    CPC分类号： C07F9/5027 ,  C07C67/38 ,  C07C69/24

    摘要： A process for the liquid-phase carbonylation of ethylene, according to the equation C2H4+CO+ROH→C2H5CO2R, in the presence of a catalyst system comprising a Group VIII metal or compound thereof, a phosphine ligand and a source of anions, and in the presence of water or a source of organic hydroxyl groups, is carried out in conditions in which the molar ratio of ethylene to carbon monoxide in the gaseous phase of the reactor is greater than 1:1. The higher ratios of ethylene to carbon monoxide are beneficial in increasing the turnover number of the catalyst system.

    摘要翻译： 在包含第Ⅷ族金属或其化合物，膦配体和阴离子源的催化剂体系存在下，根据式C 2 H 4 + CO + ROH-> C 2 H 5 CO 2 R的乙烯的液相羰基化方法，和 在水或有机羟基源的存在下，在反应器气相中的乙烯与一氧化碳的摩尔比大于1:1的条件下进行。 乙烯与一氧化碳的比例越高，有利于增加催化剂体系的周转数。

    Process for the palladium and phosphine ligand catalyzed carbonylation of ethylene
    8.
    发明授权
    Process for the palladium and phosphine ligand catalyzed carbonylation of ethylene 有权
    钯和膦配体催化羰基化乙烯的方法

    公开(公告)号：US06489506B2

    公开(公告)日：2002-12-03

    申请号：US09885187

    申请日：2001-06-21

    申请人： Jean Margaret Pearson ,  Raymond Anthony Hadden

    发明人： Jean Margaret Pearson ,  Raymond Anthony Hadden

    IPC分类号： C07C6738

    CPC分类号： C07F9/5027 ,  C07C67/38 ,  C07C69/24

    摘要： A process for the liquid-phase carbonylation of ethylene, according to the equation C2H4+CO+ROH→C2H5CO2R, in the presence of a catalyst system comprising a Group VIII metal or compound thereof, a phosphine ligand and a source of anions, and in the presence of water or a source of organic hydroxyl groups, is carried out in conditions in which the molar ratio of ethylene to carbon monoxide in the gaseous phase of the reactor is greater than 1:1. The higher ratios of ethylene to carbon monoxide are beneficial in increasing the turnover number of the catalyst system.

    摘要翻译： 在包含第Ⅷ族金属或其化合物，膦配体和阴离子源的催化剂体系存在下，根据式C 2 H 4 + CO + ROH-> C 2 H 5 CO 2 R的乙烯的液相羰基化方法，和 在水或有机羟基源的存在下，在反应器气相中的乙烯与一氧化碳的摩尔比大于1:1的条件下进行。 乙烯与一氧化碳的比例越高，有利于增加催化剂体系的周转数。