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1.发明公开公开(公告)号：US20230159672A1
公开(公告)日：2023-05-25
申请号：US18058377
申请日：2022-11-23
发明人： Sukhdeep KAUR , Rashmi RANI , Gurmeet SINGH , Dheer SINGH , Anju CHOPRA , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
摘要： The present disclosure relates to a process for producing linear alpha olefins in high yield carried out by oligomerization of ethylene in the presence of a novel catalyst composition. The catalyst composition includes Zirconium compound, an organoaluminum compound, and at least one Lewis base selected from cyclic and acyclic ethers (i.e., di-n-butyl ether and diethyl ether). The process for oligomerization of ethylene is carried out in an inert organic solvent in the presence of said catalyst composition. The process as disclosed herein provides significantly high activity of the said catalyst composition resulting in high yield of the alpha olefins (>95 wt. %) as the product and significantly minimum polymer as by-product. The process provides higher yield of C6-C10 fraction with >60 wt. %.
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2.发明申请Particle Size Distribution Control Through Internal Donor in Ziegler-Natta Catalyst 有权齐格勒 - 纳塔催化剂通过内部供体的粒度分布控制公开(公告)号：US20160009833A1
公开(公告)日：2016-01-14
申请号：US14794148
申请日：2015-07-08
发明人： Sukhdeep KAUR , Bhasker BANTU , Gurmeet SINGH , Naresh KUMAR , SHASHIKANT , Gurpreet Singh KAPUR , Biswajit BASU , Ravinder Kumar MALHOTRA
IPC分类号： C08F110/06
CPC分类号： C08F110/06 , C08F4/6548 , C08F4/651 , C08F4/6465 , C08F2500/18 , C08F4/6545
摘要： The present invention describes a process for controlling particle size of a catalyst composition. The process comprising the steps of contacting an internal donor with an organomagnesium precursor solution to form an intermediate solution and treating the intermediate solution with a transition metal compound to form a catalyst composition, wherein particle size of the catalyst composition is controlled by controlling a contact time of the internal donor with the precursor solution during formation of the intermediate solution.
摘要翻译： 本发明描述了一种控制催化剂组合物的粒度的方法。 该方法包括使内部供体与有机镁前体溶液接触以形成中间体溶液并用过渡金属化合物处理中间体溶液以形成催化剂组合物，其中催化剂组合物的粒度通过控制接触时间 的内部供体与前体溶液形成中间溶液。
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3.发明申请公开(公告)号：US20220089831A1
公开(公告)日：2022-03-24
申请号：US17481050
申请日：2021-09-21
发明人： Bineesh Vijayan KANATTUKARA , Gurmeet SINGH , Dheer SINGH , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
IPC分类号： C08J11/16 , B01J21/04 , B01J35/08 , B01J29/40 , B01J21/16 , B01J21/10 , B01J23/72 , B01J23/745 , B01J8/04 , B01J8/06 , B01J8/02 , C07C4/22 , B01J21/20 , B01J23/94 , B01J29/90
摘要： The present invention provides a process of catalytic depolymerization of polystyrene involving a spherical catalyst, an apparatus for carrying out the depolymerization, recovering the aromatic rich liquid product and recycling the catalyst without any decrease in the catalytic performance. Further, the present invention provides that the aromatic rich liquid product includes styrene, xylene, benzene, ethyl benzene, with styrene content greater than 65%. Additionally, the catalyst involved in the depolymerization process is a spherical catalyst that is easily recovered from coke/char formed during the process and is recycled and reused without any decrease in the catalytic performance.
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公开(公告)号：US20220025076A1
公开(公告)日：2022-01-27
申请号：US17382138
申请日：2021-07-21
发明人： Rajasekhar TOTA , Gurmeet SINGH , Rashmi RANI , Sujit MONDAL , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
摘要： The present invention provides a method for producing highly reactive polyisobutylene by liquid phase polymerization of isobutylene or isobutylene containing feed stock, wherein at least 70 mole % of polymer chains in the polyisobutylene have exo olefin end groups. Further, the present invention provides a catalyst composition for polymerization, comprising of a Lewis acid complexed with at least two Lewis bases selected from sterically hindered ether and linear dialkyl ether; or a Lewis base complexed with at least two Lewis acids selected from aluminium halides mixture. The present invention additionally provides that Lewis acid with Lewis bases mixture or Lewis base with Lewis acids mixture constituting the catalyst show synergistic effect resulting in high isobutylene conversion and production of polyisobutylene having high exo olefin content, while maintaining desired molecular weight range of 250-10000 Dalton.
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公开(公告)号：US20210317380A1
公开(公告)日：2021-10-14
申请号：US17229088
申请日：2021-04-13
发明人： Sukhdeep KAUR , Usharani SAHOO , Gurmeet SINGH , Naresh PAPPU , Jai Narayan PANDEY , Shobhashankar KUMHAR , Gurpreet Singh KAPUR , Deepak SAXENA , Sankara Sri Venkata RAMAKUMAR
IPC分类号： C10M107/10 , C08F110/14 , C07C2/06
摘要： The invention relates to a method of the oligomerization of C6 and above olefin monomer whereby, at a fixed monomer/Al halide mole ratio, polyalphaolefins having desirable kinematic viscosities are prepared by controlling the oligomerization temperature. The oligomerization is carried out in presence of an oligomerizing catalyst comprising of aluminum halide and a promoter, and oligomerizing temperatures of about 10° C. to about 120° C.
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公开(公告)号：US20230159676A1
公开(公告)日：2023-05-25
申请号：US17953459
申请日：2022-09-27
发明人： Gurmeet SINGH , Rashmi RANI , Sukhdeep KAUR , Yajnaseni BISWAS , Anju CHOPRA , Gurpreet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
IPC分类号： C08F110/02
CPC分类号： C08F110/02
摘要： The present invention relates to a process for preparation of a catalyst for polymerization of olefins. The catalyst has a particle size of between 5 to 30 microns with activity ranging from 3-4 Kg (co)polymer per g of catalyst and excellent hydrogen response. The method for preparation of the catalyst comprises the steps of: a) contacting a liquid magnesium complex, an electron donor, and a titanium halide compound to form a solution; b) obtaining the solid uniform catalyst particles by precipitation; and c) washing the catalyst particles to obtain solid uniform catalyst., for producing (co)polymer of ethylene with other olefins have fines less than 10 wt.%.
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公开(公告)号：US20210178376A1
公开(公告)日：2021-06-17
申请号：US17117171
申请日：2020-12-10
发明人： Gurmeet SINGH , Rashmi RANI , Sukhdeep KAUR , Dheer SINGH , Anju CHOPRA , Gurpeet Singh KAPUR , Sankara Sri Venkata RAMAKUMAR
摘要： The present invention describes a catalyst composition for use as a catalyst system for an ethylene olisomerization, providing high activity and produce linear oligomer product having broad weight percent distribution i.e. C4 to C16. The catalyst composition comprises a zirconium amide compound, an organoaluminum compound and an additive. The present invention also provides a process for preparation of the zirconium amide compound comprising reacting a zirconium component having formula ZrXmnTHF, wherein X is halogen atom; m is an integer having value equal or less than 4 and n is a number equal or less than 2, and a substituted amide of formula RCONR′R″, wherein R, R′ and R″ are saturated or unsaturated aliphatic C1-C10 hydrocarbon or aromatic C6-C14 hydrocarbon, in the presence of an organic solvent.
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公开(公告)号：US20170081440A1
公开(公告)日：2017-03-23
申请号：US15371193
申请日：2016-12-06
发明人： Sukhdeep KAUR , Gurmeet SINGH , Bhasker BANTU , Naresh KUMAR , Gurpreet Singh KAPUR , Shashi KANT , Biswajit BASU , Ravinder Kumar MALHOTRA
IPC分类号： C08F110/06
CPC分类号： C08F110/06 , C07F3/02 , C08F4/16 , C08F4/52 , C08F4/654 , C08F4/6493 , C08F4/651 , C08F2500/12 , C08F2500/18
摘要： The present invention provides a solid organomagnesium precursor having formula {Mg(OR′)X}.a{MgX2}.b{Mg(OR′)2}.c{R′OH}, wherein R′ is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.
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公开(公告)号：US20160376384A1
公开(公告)日：2016-12-29
申请号：US15185019
申请日：2016-06-17
发明人： Gurmeet SINGH , Naresh KUMAR , Sukhdeep KAUR , Bhasker BANTU , Gurpreet Singh KAPUR , SHASHIKANT
IPC分类号： C08F110/02
CPC分类号： C08F110/02 , C08F4/654 , C08F4/651 , C08F2500/12 , C08F2500/18 , C08F4/6548
摘要： The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.
摘要翻译： 本发明描述了一种制备烯烃聚合催化剂的方法，包括：（i）用内部供体处理有机卤化物的镁金属，得到具有固体组分（A）的反应混合物; （ⅱ）用酰卤处理具有固体组分（A）的反应混合物，得到具有固体组分（B）的反应混合物; 和（iii）用过渡金属化合物处理具有步骤（ii）的固体组分（B）的反应混合物以获得催化剂。 本发明还涉及从所述催化剂制备催化剂体系的方法以及从催化剂体系制备聚烯烃。
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公开(公告)号：US20180362675A1
公开(公告)日：2018-12-20
申请号：US15915266
申请日：2018-03-08
发明人： Sukhdeep KAUR , Usharani SAHOO , Gurmeet SINGH , Rashmi RANI , Gurpreet Singh KAPUR , SHASHIKANT
IPC分类号： C08F10/06
摘要： The present invention provides an external electron donor composition comprising essentially of monoether as activity limiting agent for polymerization of olefins along with alkoxy silane as selectivity controlling agent, wherein mole percentage of the alkoxy silane to monoether is from 1 to 100.
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