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100 条记录 (耗时 0.025 秒)

    Supported acid catalysts, their preparation and use in organic compound conversion
    13.
    发明授权
    Supported acid catalysts, their preparation and use in organic compound conversion 失效
    支持酸催化剂，其制备和用于有机化合物的转化

    公开(公告)号：US5294578A

    公开(公告)日：1994-03-15

    申请号：US996385

    申请日：1992-12-23

    申请人： Suzzy C. Ho ,  margaret M. Wu

    发明人： Suzzy C. Ho ,  margaret M. Wu

    IPC分类号： B01J37/02 ,  B01J37/08 ,  C07C2/66 ,  B01J29/04

    CPC分类号： B01J37/086 ,  B01J37/0215 ,  C07C2/66 ,  C07C2521/06 ,  C07C2521/08 ,  C07C2521/12 ,  C07C2523/10 ,  C07C2523/22 ,  C07C2527/167 ,  C07C2529/70

    摘要： A novel method to prepare a solid acid catalyst through the reaction of a metal-alkyl halide species and the surface hydroxyl group of a solid support is disclosed. Lewis acidic metals, e.g., B, Al and Ga, etc., can then be anchored on the surface via the formation of an oxygen-metal bond. The solids containing these metals can be used as catalysts that will catalyze organic compound coversion reactions, e.g., Friedel-Crafts type reactions, olefin oligomerization, aromatic alkylation and acylation, alkane alkylation and isomerization reactions.

    摘要翻译： 公开了通过金属 - 烷基卤化物物质与固体载体的表面羟基的反应来制备固体酸催化剂的新方法。 然后可以通过形成氧 - 金属键将路易斯酸性金属例如B，Al和Ga等锚定在表面上。 含有这些金属的固体可以用作催化有机化合物转化反应的催化剂，例如Friedel-Crafts型反应，烯烃低聚，芳族烷基化和酰化，烷烃烷基化和异构化反应。

    High VI synthetic lubricants from thermally cracked slack wax
    14.
    发明授权
    High VI synthetic lubricants from thermally cracked slack wax 失效
    来自热裂的松散蜡的高VI合成润滑剂

    公开(公告)号：US5276229A

    公开(公告)日：1994-01-04

    申请号：US903392

    申请日：1992-06-24

    申请人： J. Scott Buchanan ,  Margaret M. Wu

    发明人： J. Scott Buchanan ,  Margaret M. Wu

    IPC分类号： C10M107/10 ,  C07C2/74 ,  C07C2/02

    CPC分类号： C10M107/10 ,  C10M2205/028 ,  C10M2205/14 ,  C10M2205/16 ,  C10M2205/17 ,  C10M2205/18

    摘要： A process for the production of synthetic lubricants having high viscosity index by oligomerizing a mixture of alpha-olefins produced from the thermal cracking of slack wax or recycled slack wax. The oligomerization is carried out with a reduced metal oxide catalyst, preferably a carbon monoxide reduced chromium oxide on a silica support. The olefin product from the thermal cracking step is purified, preferably by hydrotreating prior to the oligomerization step.

    摘要翻译： 一种制备具有高粘度指数的合成润滑剂的方法，其通过由松散蜡或回收的松散蜡的热裂解产生的α-烯烃的混合物进行低聚。 低聚反应用二氧化硅载体上还原的金属氧化物催化剂，优选一氧化碳还原的氧化铬进行。 来自热裂解步骤的烯烃产物被纯化，优选在低聚步骤之前通过加氢处理。

    VI enhancing compositions and newtonian lube blends
    15.
    发明授权
    VI enhancing compositions and newtonian lube blends 失效
    VI增强组合物和牛顿润滑剂混合物

    公开(公告)号：US5157177A

    公开(公告)日：1992-10-20

    申请号：US686639

    申请日：1991-04-17

    申请人： Bruce P. Pelrine ,  Margaret M. Wu

    发明人： Bruce P. Pelrine ,  Margaret M. Wu

    IPC分类号： C08F10/14 ,  C08F110/14 ,  C08F210/14 ,  C10G50/02 ,  C10M143/08

    CPC分类号： C08F10/14 ,  C10G50/02 ,  C10M143/08 ,  C08F110/14 ,  C08F210/14 ,  C10M2205/00 ,  C10M2205/028 ,  C10N2220/02 ,  Y02P20/582

    摘要： A novel composition is disclosed that is particularly useful as a lubricant viscosity index improver. The composition comprises branched C.sub.30 -C.sub.10000 hydrocarbons that have a branch ratio of less than 0.19 and viscosity at 100.degree. C. between 725 cS and 15,000 cS. The novel compositions comprise the product of the oligomerization of C.sub.6 to C.sub.20 alpha-olefin feedstock, or mixtures thereof, under oligomerization conditions at a temperature between -20.degree. C. and +90.degree. C. in contact with a reduced valence state Group VIB metal catalyst on porous support. The compositions have viscosities at 100.degree. C. between 725 cS and 15,000 cS. Using the foregoing compositions in admixture with mineral oil and synthetic lubricants provides novel lubricant blends that show an elevated viscosity index. The mixtures also show an increased stability to shear stress at high temperature with all blends notable by exhibiting Newtonian flow.

    摘要翻译： 公开了作为润滑剂粘度指数改进剂特别有用的新型组合物。 该组合物包含分支比小于0.19且在100℃下的粘度在725cS和15,000cS之间的支链C30-C10000烃。 该新型组合物包括C6-C20α-烯烃原料低聚的产物，或其混合物，在低温条件下，在-20℃至+ 90℃之间的温度下与还原的化合价VIB金属 多孔载体上的催化剂。 组合物在100℃下的粘度在725cS和15,000cS之间。 使用与矿物油和合成润滑剂混合的上述组合物提供显示升高的粘度指数的新型润滑剂共混物。 混合物还显示出在高温下对剪切应力的稳定性增加，所有共混物通过显示牛顿流动显着。

    Synthetic polyolefin lubricant blends
    16.
    发明授权
    Synthetic polyolefin lubricant blends 失效
    合成聚烯烃润滑剂混合物

    公开(公告)号：US5105038A

    公开(公告)日：1992-04-14

    申请号：US623840

    申请日：1990-12-07

    申请人： Catherine S. H. Chen ,  Margaret M. Wu

    发明人： Catherine S. H. Chen ,  Margaret M. Wu

    IPC分类号： C10M169/04

    CPC分类号： C10M169/041 ,  C10M2203/0206 ,  C10M2205/024 ,  C10M2205/0245 ,  C10M2205/026 ,  C10M2205/0265 ,  C10M2205/028 ,  C10N2220/02

    摘要： Synthetic lubricant blends exhibiting superior lubricant properties such as high viscosity index, including mixtures of oligomeric products of shape selective catalysis with other lubricants, such as high viscosity index poly-alpha-(.alpha.-)olefins lubricant basestock, conventional poly(.alpha.-olefin) and/or other liquid lubricant basestock material.Preferred lubricant mixtures comprise hydrogenated components:a) a low viscosity C.sub.20 -C.sub.60 lubricant range liquid comprising substantially linear hydrocarbon moietoes prepared by shape selective catalysis of lower olefin with medium pore acid zeolite catalyst to provide substantially linear liquid olefinic intermediates or C.sub.20.sup.+ lubricants, said lubricant range liquid having a kinematic viscosity of about 2-10 cS at 100.degree. C.; andb) at least one poly(.alpha.-olefin) having viscosity greater than 20 cS and viscosity index improvement properties.

    摘要翻译： 合成润滑剂共混物表现出优异的润滑性能，例如高粘度指数，包括形状选择性催化与其它润滑剂的低聚产物的混合物，例如高粘度指数聚-α-（α-）烯烃润滑剂基础油，常规聚（α-烯烃） 和/或其它液体润滑剂基础材料。 优选的润滑剂混合物包括氢化组分：a）低粘度的C 20 -C 60润滑剂范围液体，其包含基本上由线性烃气溶胶组成，所述烃气溶胶通过低分子烯烃与中孔酸沸石催化剂的形状选择性催化制备，以提供基本上线性的液体烯烃中间体或C20 +润滑剂，所述润滑剂 在100℃下运动粘度为约2-10cS的范围液体; 和b）至少一种粘度大于20cS的聚（α-烯烃）和粘度指数改进性能。

    Polymer-coated support and its use as sand pack in enhanced oil recovery
    17.
    发明授权
    Polymer-coated support and its use as sand pack in enhanced oil recovery 失效
    聚合物涂层载体及其作为砂包在增强采油中的应用

    公开(公告)号：US4969522A

    公开(公告)日：1990-11-13

    申请号：US288334

    申请日：1988-12-21

    申请人： Darrell D. Whitehurst ,  Margaret M. Wu

    发明人： Darrell D. Whitehurst ,  Margaret M. Wu

    IPC分类号： C09K8/565 ,  C09K8/575

    CPC分类号： C09K8/5756 ,  C09K8/565 ,  Y10T428/2998

    摘要： A non-friable support, e.g., sand, coated with a polymer is prepared by contacting the support containing a polymerization catalyst with a monomer which is at least one multi-functional olefin, e.g., a diene, under monomer polymerization conditions. The product of the polymerization process is a highly cross-linked coating which engulfs the support, thereby rendering it hydrolytically and thermally stable. The support can be used as a sand pack in enhanced oil recovery operations, wherein it is resistant to deterioration due to high temperature, pressure and alkaline conditions existing in the subterranean formations.

    摘要翻译： 通过在单体聚合条件下使包含聚合催化剂的载体与至少一种多官能烯烃（例如二烯）的单体接触来制备涂覆有聚合物的非易碎载体，例如砂。 聚合过程的产物是一种高度交联的涂层，其吸收载体，从而使其具有水解和热稳定性。 该支撑体可以用作强化采油操作中的砂堆，其中耐地层中存在高温，高压和碱性条件的劣化。

    Preparation of alpha-olefin polymers of relatively narrow molecular weight distribution
    19.
    发明授权
    Preparation of alpha-olefin polymers of relatively narrow molecular weight distribution 失效
    制备相对较窄分子量分布的α-烯烃聚合物

    公开(公告)号：US4876321A

    公开(公告)日：1989-10-24

    申请号：US17285

    申请日：1987-02-20

    申请人： Frederick Y. Lo ,  Thomas E. Nowlin ,  Margaret M. Wu

    发明人： Frederick Y. Lo ,  Thomas E. Nowlin ,  Margaret M. Wu

    IPC分类号： C08F4/02 ,  C08F10/00

    CPC分类号： C08F10/00 ,  Y10S526/901

    摘要： A catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier containing OH groups with a liquid solution containing an excess of an organomagnesium composition with respect to the OH groups and contacting the thus-formed magnesium-containing carrier with a hydrocarbyl alcohol and at least one transition metal compound. Prior to contacting the magnesium-containing carrier with the alcohol, most of the liquid must be removed therefrom, so that it comprises not more than about 6% of the liquid. The amount of the transition metal compound is such that the molar ratio thereof to magnesium in the reaction mixture is about 0.3 to about 0.9. Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention.

    摘要翻译： 用于聚合α-烯烃的催化剂组合物通过用含有过量的有机镁组合物的液体溶液相对于OH基团处理含有OH基团的载体并将如此形成的含镁载体与烃基接触并在 至少一种过渡金属化合物。 在使含镁载体与醇接触之前，大部分液体必须从其中除去，使其不超过约6％的液体。 过渡金属化合物的量使得其与反应混合物中的镁的摩尔比为约0.3至约0.9。 还公开了在本发明催化剂存在下聚合α-烯烃的方法。

    Preparation of alpha-olefin polymers of relatively narrow molecular weight distrbution
    20.
    发明授权
    Preparation of alpha-olefin polymers of relatively narrow molecular weight distrbution 失效
    制备相对较窄分子量分布的α-烯烃聚合物

    公开(公告)号：US4760121A

    公开(公告)日：1988-07-26

    申请号：US17289

    申请日：1987-02-20

    申请人： Frederick Y. Lo ,  Thomas E. Nowlin ,  Margaret M. Wu

    发明人： Frederick Y. Lo ,  Thomas E. Nowlin ,  Margaret M. Wu

    IPC分类号： C08F4/64 ,  C08F10/00

    CPC分类号： C08F10/00 ,  Y10S526/901

    摘要： A catalyst composition for polymerizing alpha-olefins is prepared by treating a carrier containing OH groups with a liquid solution containing an excess of an organomagnesium composition with respect to the OH groups and contacting the thus-formed magnesium-containing carrier with a solution of at least one transition metal compound. Prior to contacting the magnesium-containing carrier with the transition metal compound, most of the liquid must be removed therefrom, so that it comprises not more than about 6% of the liquid. The amount of the transition metal compound is such that the molar ratio of the transition metal to magnesium in the reaction mixture is about 0.3 to about 0.9. Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention.

    摘要翻译： 用于聚合α-烯烃的催化剂组合物通过用含有过量的有机镁组合物的液体溶液相对于OH基团处理含有OH基团的载体来制备，并将如此形成的含镁载体与至少 一种过渡金属化合物。 在使含镁载体与过渡金属化合物接触之前，必须从其中除去大部分液体，使其含有不超过约6％的液体。 过渡金属化合物的量使得反应混合物中过渡金属与镁的摩尔比为约0.3至约0.9。 还公开了在本发明催化剂存在下聚合α-烯烃的方法。