Asymetric epoxidation using a titanium-containing zeolite and a chiral
hydroperoxide
    1.
    发明授权
    Asymetric epoxidation using a titanium-containing zeolite and a chiral hydroperoxide 失效
    使用含钛沸石和手性氢过氧化物进行不对称环氧化

    公开(公告)号:US5663384A

    公开(公告)日:1997-09-02

    申请号:US611732

    申请日:1996-03-06

    IPC分类号: C07B53/00 C07D301/19

    CPC分类号: C07D301/19 C07B53/00

    摘要: Prochiral ethylenically unsaturated substrates are converted to chiral epoxides by reaction with optically active hydroperoxides in the presence of titanium-containing zeolites such as titanium zeolite beta. The method is particularly suitable for producing epoxides from unsubstituted aliphatic olefins which have exceptionally high optical purity as measured by enantiomeric excess.

    摘要翻译: 通过在含钛沸石如钛沸石β的存在下与光学活性氢过氧化物反应,将前手性烯属不饱和基材转化为手性环氧化物。 该方法特别适用于通过对映异构体过量测定的具有非常高的光学纯度的未取代的脂族烯烃制备环氧化物。

    Production of butanediol
    2.
    发明授权
    Production of butanediol 有权
    生产丁二醇

    公开(公告)号:US06969780B1

    公开(公告)日:2005-11-29

    申请号:US11017588

    申请日:2004-12-20

    IPC分类号: C07C27/04 C07C29/141

    CPC分类号: C07C29/141 C07C31/207

    摘要: The catalytic hydrogenation of HBA and/or HMPA is improved by either or both of (1) increasing the temperature in the hydrogenation zone from about 50 to 70° C. at the inlet to above 80° C. at the outlet and (2) raising the pH of the hydrogenation feed to 4.5–6.0 before hydrogenation.

    摘要翻译: HBA和/或HMPA的催化氢化通过(1)在加氢区中将入口处的温度从约50℃提高至70℃,并在出口处高于80℃改善,和(2) 在氢化之前将氢化进料的pH提高到4.5-6.0。

    Allyl alcohol hydroformylation
    3.
    发明授权
    Allyl alcohol hydroformylation 有权
    烯丙醇加氢甲酰化

    公开(公告)号:US06225509B1

    公开(公告)日:2001-05-01

    申请号:US09478480

    申请日:2000-01-06

    IPC分类号: C07C4500

    CPC分类号: C07C45/49 C07C47/19

    摘要: Hydroxybutyraldehyde is formed by hydroformylation of allyl alcohol using a catalyst comprised of a rhodium complex and a ligand such as DIOP, the concentration of CO in the reaction liquid is maintained above about 4.5 mg. mols/liter.

    摘要翻译: 羟基丁醛通过使用由铑络合物和配体如DIOP组成的催化剂使烯丙醇加氢甲酰化形成,反应液中的CO浓度保持在约4.5mg以上。 摩尔/升。

    Catalyst regeneration
    4.
    发明授权
    Catalyst regeneration 有权
    催化剂再生

    公开(公告)号:US08722557B2

    公开(公告)日:2014-05-13

    申请号:US12317873

    申请日:2008-12-30

    IPC分类号: B01J38/16

    摘要: A method is disclosed for regenerating a used catalyst mixture comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) a metathesis catalyst comprising an inorganic carrier and at least one of molybdenum oxide and tungsten oxide. The method comprises (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decoked catalyst mixture; and (b) contacting the decoked catalyst mixture with steam at a temperature in the range of 100 to 300° C. to produce a regenerated catalyst mixture.

    摘要翻译: 公开了一种用于再生所用催化剂混合物的方法,其包含(i)包含氧化镁的异构化催化剂和(ii)包含无机载体和氧化钼和氧化钨中的至少一种的复分解催化剂。 该方法包括(a)在含氧气体的存在下对所用的催化剂混合物进行脱焦,以产生一个经过开馏的催化剂混合物; 和(b)使所述经切割的催化剂混合物与蒸汽在100至300℃的温度下接触以产生再生催化剂混合物。

    Preparation of lithium phosphate catalysts
    5.
    发明授权
    Preparation of lithium phosphate catalysts 有权
    磷酸锂催化剂的制备

    公开(公告)号:US06803491B1

    公开(公告)日:2004-10-12

    申请号:US10712284

    申请日:2003-11-13

    IPC分类号: C07C3302

    摘要: A new method for preparing lithium phosphate catalysts is disclosed. The method comprises precipitating a lithium phosphate from a mixture comprising a first aqueous solution which contains lithium and sodium ions and a second aqueous solution which contains phosphate and borate ions. The resultant lithium phosphate catalyst has increased activity and selectivity in the isomerization of an alkylene oxide to the corresponding allylic alcohol.

    摘要翻译: 公开了一种制备磷酸锂催化剂的新方法。 该方法包括从包含锂和钠离子的第一水溶液和含有磷酸盐和硼酸根离子的第二水溶液的混合物中沉淀磷酸锂。 所得到的磷酸锂催化剂在烯化氧异构化到相应的烯丙醇时具有增加的活性和选择性。

    Epoxidation process using a phosphate-stabilized peroxotungstate
compound as catalyst
    6.
    发明授权
    Epoxidation process using a phosphate-stabilized peroxotungstate compound as catalyst 失效
    使用磷酸盐稳定的过氧钨酸盐化合物作为催化剂的环氧化方法

    公开(公告)号:US5780655A

    公开(公告)日:1998-07-14

    申请号:US850983

    申请日:1997-05-05

    CPC分类号: C07D301/12

    摘要: Olefins are selectively converted to epoxides using hydrogen peroxide as oxidant in a single liquid phase reaction system characterized by a liquid phase comprised predominantly of an organic solvent. The reaction is catalyzed by a compound comprised of a phosphate-stabilized peroxotungstate species having a W:P atomic ratio of 2:1.

    摘要翻译: 在单一液相反应系统中,使用过氧化氢作为氧化剂将烯烃选择性地转化为环氧化物,其特征在于主要由有机溶剂组成的液相。 该反应由具有W:P原子比为2:1的磷酸盐稳定的过氧钨酸盐物质组成的化合物催化。

    Catalyst regeneration
    7.
    发明申请
    Catalyst regeneration 有权
    催化剂再生

    公开(公告)号:US20100167911A1

    公开(公告)日:2010-07-01

    申请号:US12317873

    申请日:2008-12-30

    IPC分类号: C08F2/46

    摘要: A method is disclosed for regenerating regenerating a used catalyst mixture comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) a metathesis catalyst comprising an inorganic carrier and at least one of molybdenum oxide and tungsten oxide. The method comprises (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decoked catalyst mixture; and (b) contacting the decoked catalyst mixture with steam at a temperature in the range of 100 to 300° C. to produce a regenerated catalyst mixture.

    摘要翻译: 公开了一种用于再生再生所用催化剂混合物的方法,其包含(i)包含氧化镁的异构化催化剂和(ii)包含无机载体和钼氧化物和氧化钨中的至少一种的复分解催化剂。 该方法包括(a)在含氧气体的存在下对所用的催化剂混合物进行脱焦,以产生一个经过开馏的催化剂混合物; 和(b)使所述经切割的催化剂混合物与蒸汽在100至300℃的温度下接触以产生再生催化剂混合物。