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    Single step process for the preparation of lower α-alkene polymerization heterogeneous solid catalyst
    1.
    发明授权
    Single step process for the preparation of lower α-alkene polymerization heterogeneous solid catalyst 有权
    用于制备低级α-烯烃聚合异相固体催化剂的单步法

    公开(公告)号：US07265074B2

    公开(公告)日：2007-09-04

    申请号：US10552217

    申请日：2003-04-10

    申请人： Sumit Bhaduri ,  Virendra Kumar Gupta ,  Krishna Sarma

    发明人： Sumit Bhaduri ,  Virendra Kumar Gupta ,  Krishna Sarma

    IPC分类号： C08F4/626 ,  C08F4/64

    CPC分类号： C08F110/00 ,  C08F110/02 ,  C08F110/06 ,  C08F4/651 ,  C08F4/654

    摘要： Single step process for the preparation of lower α-alkene polymerisation heterogeneous solid catalyst, wherein the procatalyst is obtained by reacting organomagnesium precursor and titanium tetrahalide or titanium haloalkoxo species of the formula Ti(OR)m Xn, with a hydrocarbon or halohydrocarbon solvent and internal electron donor and optionally an acid halide under microwave irradiation of 300 to 1200 W. The mole ratio of the organomagnesium precursor to the titanium tetrachloride or titanium haloalko species is 1:6 to 1:20 and the mole ratios of the electron donor and acid halide to titanium is 0.3 to 1.5 and 0.02 to 0.2, respectively.

    摘要翻译： 用于制备低级α-烯烃聚合异相固体催化剂的单步法，其中通过有机镁前体和式Ti（OR）m Xn的四卤化钛或卤代烷氧基钛与烃或卤代烃溶剂和内部 电子给体和任选的酰卤，在微波辐射下为300〜1200W。有机镁前体与四氯化钛或钛卤代烷烃的摩尔比为1:6〜1:20，电子给体和酰卤的摩尔比 钛分别为0.3〜1.5,0.02〜0.2。

    Olefin polymerization titanium catalyst
    2.
    发明授权
    Olefin polymerization titanium catalyst 失效
    烯烃聚合钛催化剂

    公开(公告)号：US06969747B2

    公开(公告)日：2005-11-29

    申请号：US10502219

    申请日：2002-01-25

    申请人： Sumit Bhaduri ,  Virendra Kumar Gupta

    发明人： Sumit Bhaduri ,  Virendra Kumar Gupta

    IPC分类号： C08F4/649 ,  C08F10/00 ,  C08F110/02

    CPC分类号： C08F110/02 ,  C08F10/00 ,  Y10S526/904 ,  C08F4/6428 ,  C08F4/651 ,  C08F4/655 ,  C08F4/027

    摘要： An olefin polymerization titanium catalyst. It comprises a titanium compound and an organoaluminium compound cocatalyst supported on a soluble polysulfone comprising free reactive sulfone groups. The molar ratio of titanium of aluminum is 1–10:200 and the weight ratio of titanium to polysulfone is 0.01–0.1:0.3–2.5. The process for preparing the catalyst comprises preparing a supported titanium compound by contacting a solution of a polysulfone in a halogenated or polar solvent with a titanium compound or a solution thereof in a halogenated or polar solvent in an inert atmosphere at a temperature between 10° C. and the boiling point of the solvent such that the weight ratio of titanium to polysulfone is 0.01–0.1:0.3–2.5. The supported titanium compound is mixed with an organoaluminium cocatalyst such that the molar ratio of titanium to aluminum is 1–10:200.

    摘要翻译： 烯烃聚合钛催化剂。 它包括负载在包含游离反应性砜基团的可溶性聚砜上的钛化合物和有机铝化合物助催化剂。 铝的摩尔比为1-10：200，钛与聚砜的重量比为0.01-0.1：0.3-2.5。 制备催化剂的方法包括通过使卤化或极性溶剂中的聚砜溶液与卤化或极性溶剂中的钛化合物或其溶液在惰性气氛中在10℃的温度下接触来制备负载的钛化合物 和溶剂的沸点，使得钛与聚砜的重量比为0.01-0.1:0.3-2.5。 将负载的钛化合物与有机铝助催化剂混合，使得钛与铝的摩尔比为1-10:200。

    Lower α-alkene polymerization heterogeneous solid catalyst
    3.
    发明授权
    Lower α-alkene polymerization heterogeneous solid catalyst 失效
    低级烯烃聚合异相固体催化剂

    公开(公告)号：US06841633B2

    公开(公告)日：2005-01-11

    申请号：US10110045

    申请日：2000-11-29

    申请人： Sumit Bhaduri ,  Virendra Kumar Gupta

    发明人： Sumit Bhaduri ,  Virendra Kumar Gupta

    IPC分类号： C08F4/654 ,  C08F10/00 ,  C08F210/06 ,  C08F4/42

    CPC分类号： C08F10/00 ,  C08F210/06 ,  C08F4/651 ,  C08F4/6543 ,  C08F210/14 ,  C08F2500/15

    摘要： A lower α-alkene polymerization heterogeneous solid catalyst which comprises a hydrated magnesium chloride derived procatalyst, a cocatalyst comprising an organoaluminium compound and a selectivity control agent comprising an ester or ether. The procatalyst comprises a titanium tetrahalide supported on a magnesium chloride ester complex precursor. Magnesium chloride alcoholate is reacted with an activated carbonyl compound in the presence of a hydrocarbon and/or halohydrocarbon solvent to generate insitu an internal electron donor ester component of the precursor. The precursor is reacted with a titanium tetrahalide optionally in the presence of a hydrocarbon and/or halohydrocarbon solvent.

    摘要翻译： 低级α-烯烃聚合异相固体催化剂，其包含水合氯化镁衍生的原催化剂，包含有机铝化合物的助催化剂和包含酯或醚的选择性控制剂。 前催化剂包括负载在氯化镁酯复合物前体上的四卤化钛。 在烃和/或卤代烃溶剂的存在下，氯化镁醇化物与活化的羰基化合物反应以产生前体的内部电子给体酯组分。 任选地在烃和/或卤代烃溶剂的存在下将前体与四卤化钛反应。

    Single step process for the preparation of lower alpha-alkene polymerization heterogeneous solid catalyst
    4.
    发明申请
    Single step process for the preparation of lower alpha-alkene polymerization heterogeneous solid catalyst 有权
    用于制备低级α-烯烃聚合异相固体催化剂的单步法

    公开(公告)号：US20060217503A1

    公开(公告)日：2006-09-28

    申请号：US10552217

    申请日：2003-04-10

    申请人： Sumit Bhaduri ,  Virendra Gupta ,  Krishna Sarma

    发明人： Sumit Bhaduri ,  Virendra Gupta ,  Krishna Sarma

    IPC分类号： C08F4/44 ,  B01J31/00

    CPC分类号： C08F110/00 ,  C08F110/02 ,  C08F110/06 ,  C08F4/651 ,  C08F4/654

    摘要： Single step process for the preparation of lower α-alkene polymerisation heterogeneous solid catalyst, wherein the procatalyst is obtained by reacting organomagnesium precursor and titanium tetrahalide or titanium haloalkoxo species of the formula Ti(OR)m Xn, with a hydrocarbon or halohydrocarbon solvent and internal electron donor and optionally an acid halide under microwave irradiation of 300 to 1200 W. The mole ratio of the organomagnesium precursor to the titanium tetrachloride or titanium haloalko species is 1:6 to 1:20 and the mole ratios of the electron donor and acid halide to titanium is 0.3 to 1.5 and 0.02 to 0.2, respectively.

    摘要翻译： 用于制备低级α-烯烃聚合异相固体催化剂的单步法，其中通过有机镁前体和式Ti（OR）m Xn的四卤化钛或卤代烷氧基钛与烃或卤代烃溶剂和内部 电子给体和任选的酰卤，在微波辐射下为300〜1200W。有机镁前体与四氯化钛或钛卤代烷烃的摩尔比为1:6〜1:20，电子给体和酰卤的摩尔比 钛分别为0.3〜1.5,0.02〜0.2。

    Catalytic System for Polymerisation of Lower Alpha Alkene
    5.
    发明申请
    Catalytic System for Polymerisation of Lower Alpha Alkene 审中-公开
    低级阿尔卡烯聚合催化体系

    公开(公告)号：US20070260099A1

    公开(公告)日：2007-11-08

    申请号：US10589141

    申请日：2004-02-16

    申请人： Sumit Bhaduri ,  Virendra Gupta ,  Krishna Sarma

    发明人： Sumit Bhaduri ,  Virendra Gupta ,  Krishna Sarma

    IPC分类号： C08F10/00 ,  C08F4/654

    CPC分类号： C08F110/06 ,  C08F4/6494

    摘要： Catalytic system for polymerization of lower alpha alkene including a selectivity control agent which consists of naturally derived pure isomers of tartrates such as esters of (2-R,3-R)-dihydroxy-butane-1,4dicarboxylic acid or (2-S,3-S)-dihydroxybutane-1,4-dicarboxylic acid. The molar ratio of the optically pure isomers of the tartrates to titanium being 0.0375 to 1.5.

    摘要翻译： 用于聚合低级α-烯烃的催化体系包括选择性控制剂，其由天然衍生的酒石酸酯的纯异构体如（2-R，3-R） - 二羟基 - 丁烷-1,4-二羧酸或（2-S， 3-S） - 二羟基丁烷-1,4-二羧酸。 酒石酸盐的旋光纯异构体与钛的摩尔比为0.0375〜1.5。

    Rare earth materials to enhance properties of ceramic particles
    6.
    发明授权
    Rare earth materials to enhance properties of ceramic particles 有权

    公开(公告)号：US10227525B2

    公开(公告)日：2019-03-12

    申请号：US14987831

    申请日：2016-01-05

    申请人： Terry D. Monroe ,  Sumit Bhaduri ,  Harold G. Hudson

    发明人： Terry D. Monroe ,  Sumit Bhaduri ,  Harold G. Hudson

    IPC分类号： C09K8/80

    摘要： A method of improving the flow of a proppant pack or gravel pack comprises: introducing into a subterranean formation or a well a plurality of ceramic particles, the ceramic particles comprising about 0.1 wt. % to about 25 wt. % of a rare earth-containing compound, based on the total weight of the ceramic particles; and forming a proppant pack or gravel pack comprising the plurality of the ceramic particles; wherein the proppant pack or gravel pack improves fluid flow as compared with a reference proppant pack or gravel pack formed from otherwise identical ceramic particles except for being free of the rare earth-containing compound.

    Method of Reducing Water or Gas Permeability in a Subterranean Formation
    7.
    发明申请
    Method of Reducing Water or Gas Permeability in a Subterranean Formation 审中-公开
    减少地层中水或气体渗透性的方法

    公开(公告)号：US20140076562A1

    公开(公告)日：2014-03-20

    申请号：US13618893

    申请日：2012-09-14

    申请人： Sumit Bhaduri ,  Qi Qu

    发明人： Sumit Bhaduri ,  Qi Qu

    IPC分类号： C09K8/42

    CPC分类号： C09K8/426 ,  C09K8/44 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/516

    摘要： Water and gas flow into a subterranean reservoir may be reduced by pumping into the reservoir a primary amine crosslinking agent and an anionic or hydrolyzable nonionic polymer capable of crosslinking with the crosslinking agent. The reaction product forms a gel plug impermeable to water and gas.

    摘要翻译： 水和气体流入地下储层可以通过向储存器中泵送伯胺交联剂和能够与交联剂交联的阴离子或可水解的非离子聚合物来减少。 反应产物形成不渗透水和气体的凝胶塞。