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    Epoxidation reaction with recovered molybdenum catalyst
    41.
    发明公开
    Epoxidation reaction with recovered molybdenum catalyst 失效
    Epoxydierungsverfahren unter Verwendung eines wiedergewonnenenMolybdänkatalysators。

    公开(公告)号：EP0056741A1

    公开(公告)日：1982-07-28

    申请号：EP82300319.9

    申请日：1982-01-21

    Applicant: ATLANTIC RICHFIELD COMPANY

    Inventor： Taylor, Paul Duane ,  Mocella, Michael Thomas

    IPC: C07D301/19 ,  B01J23/92

    CPC classification number: C07D301/19 ,  B01J23/28 ,  B01J31/0201 ,  B01J31/0202 ,  B01J31/34 ,  B01J31/4015 ,  B01J2231/72 ,  Y02P20/584

    Abstract: In the process of epoxidation of an olefinic compound with an organic hydroperoxide catalyzed by a liquid solution of dissolved molybdenum wherein the crude epoxidation reaction mixture is separated into product components including a product epoxide, an alcohol corresponding to the hydroperoxide reactant and a spent catalyst solution, and wherein said spent catalyst solution is treated by

    a) extracting molybdenum values from the spent catalyst solution by a liquid-to-liquid extraction with an extracting medium consisting essentially of water or water and a water immiscible organic solvent,
    b) separating the molybdenum-rich aqueous phase,
    c) removing water and lower boiling organic compounds from the separated aqueous phase extract and recovering a concentrated molybdenum solution,

    wherein the improvement comprises introducing the concentrated molybdenum solution of c) into a mixture of an olefin and a hydroperoxide to catalyze the epoxidation of the olefin.

    Abstract translation: 在通过溶解的钼溶液催化的烯烃化合物与有机氢过氧化物的环氧化过程中，将粗环氧化反应混合物分离成产物组分，包括产物环氧化物，对应于氢过氧化物反应物的醇和废催化剂溶液， 并且其中所述废催化剂溶液通过以下步骤处理：a）通过用基本上由水或水组成的萃取介质和与水不混溶的有机溶剂进行液 - 液萃取从所述废催化剂溶液中提取钼值，b） 富集的水相，c）从分离的水相萃取物中除去水和降低沸点的有机化合物并回收浓钼溶液，其中改进包括将c）的浓钼溶液引入到烯烃和氢过氧化物的混合物中以催化 烯烃的环氧化。

    POLYCARBONATE POLYOL COMPOSITIONS AND METHODS
    46.
    发明公开
    POLYCARBONATE POLYOL COMPOSITIONS AND METHODS 有权
    聚碳酸酯多元醇组合物和方法

    公开(公告)号：EP2855558A2

    公开(公告)日：2015-04-08

    申请号：EP13793633.2

    申请日：2013-05-24

    Applicant: Novomer, Inc.

    Inventor： FARMER, Jay, J.

    IPC: C08G64/32

    CPC classification number: C08G64/34 ,  B01J31/0201 ,  B01J31/0202 ,  B01J31/183 ,  B01J31/184 ,  B01J31/22 ,  B01J31/2217 ,  B01J31/2243 ,  B01J2231/14 ,  B01J2531/0238 ,  B01J2531/025 ,  B01J2531/0252 ,  B01J2531/845 ,  C08G18/44 ,  C08G64/0208 ,  C08G64/0216 ,  C08G65/2603 ,  C08G65/266 ,  Y02P20/52

    Abstract: In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of CO2 and epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having one or more sites capable of initiating copolymerization of epoxides and CO2, wherein the chain transfer agent contains one or more masked hydroxyl groups. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups, a high percentage of carbonate linkages, and substantially all polycarbonate chains having hydroxyl end groups have no embedded chain transfer agent.

    Abstract translation: 在一个方面，本公开内容包括用于CO 2与环氧化物的共聚的聚合体系，所述聚合体系包含1）包含具有永久配体组的金属配位化合物和至少一种为聚合引发剂的配体的催化剂，以及2）链转移 具有一个或多个能够引发环氧化物和CO 2共聚的位点的试剂，其中所述链转移剂含有一个或多个掩蔽的羟基。 第二方面，本公开内容涵盖使用本发明聚合体系合成聚碳酸酯多元醇的方法。 在第三方面，本公开内容包括聚碳酸酯多元醇组合物，其特征在于聚合物链具有高百分比的-OH端基，高百分比的碳酸酯键和基本上所有具有羟端基的聚碳酸酯链都不含嵌入的链转移剂 。

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