Patents by Inventor Huashu Li
Huashu Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11136421Abstract: Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selected from general formula (I). Also disclosed in the present invention are a catalyst comprising the solid catalyst component, and an application for the catalyst in olefin polymerisation, particularly in propylene polymerization. Also provided in the present invention is a high activity catalyst, said catalyst being able to obtain polypropylene of high isotacticity and wide molecular weight distribution, and not requiring an external electron donor to obtain high isotacticity polypropylene; during polymerization, Al/Ti and Al/Si are reduced, the polymerization time is lengthened, and high activity can still be maintained, suitable for producing low-ash polymers.Type: GrantFiled: September 10, 2019Date of Patent: October 5, 2021Assignee: BEIJING LIHE TECHNOLOGY LTDInventors: Zhiwu Wang, Shuhang Li, Huashu Li, Junwei Zhang, Le Hu, Jinsong Dai, Qingli Ma, Yong Gao, Hao Chen, Wenjie Jiao
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Patent number: 11124583Abstract: Provided is an alkoxy magnesium supported olefin polymerization catalyst component, comprising the reaction products of the following components: at least one alkoxy magnesium compound of Mg(OR1?)N(OR2?)2-N, at least one titanium compound of general formula Ti(OR)nX4-n, at least one ortho-phenylene diester electron donor compound a, and at least one diether electron donor compound b, wherein the molar ratio of a to b is 0.05 to 20. The catalyst component has an ultrahigh polymerization activity when used for olefin polymerization, and does not require the use of an external electron donor, but can also obtain a polymer with a high isotacticity, and the resulting polymer has a relatively wide molecular weight distribution and a relatively low ash content.Type: GrantFiled: June 24, 2019Date of Patent: September 21, 2021Assignee: BEIJING LIHE TECHNOLOGY LTDInventors: Zhiwu Wang, Shuhang Li, Huashu Li, Junwei Zhang, Le Hu, Jinsong Dai, Qingli Ma, Yong Gao, Wenjie Jiao, Xinghuo Wang, Hao Chen
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Patent number: 11098142Abstract: A method of making an olefin polymerization catalyst carrier with a general structure formula of Mg(ORI)n(ORII)2-n, wherein: 0?n?2, and RI and RII can be the same or different and are each independently selected from a C1-C20 hydrocarbon group by reacting an alcohol with a metal magnesium powder under the protection of nitrogen in the presence of a halogen or a halogen-containing compound to obtain a first product, and subjecting the product to a treatment pressure of from 0.2 to 5.0 MPa at a treatment temperature of from 80 to 200° C. for a duration of between 2 minutes and 6 hours. Also provided is a method of making an olefin polymerization solid catalyst component which includes the catalyst carrier, a titanium compound, and at least one electron donor compound.Type: GrantFiled: February 2, 2019Date of Patent: August 24, 2021Assignee: Renqiu Lihe Technology Ltd.Inventors: Zhiwu Wang, Shuhang Li, Huashu Li, Junwei Zhang, Hui Zhang, Le Hu, Jinsong Dai, Qingli Ma, Jingyu Wang
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Publication number: 20200071430Abstract: Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selected from general formula (I). Also disclosed in the present invention are a catalyst comprising the solid catalyst component, and an application for the catalyst in olefin polymerisation, particularly in propylene polymerization. Also provided in the present invention is a high activity catalyst, said catalyst being able to obtain polypropylene of high isotacticity and wide molecular weight distribution, and not requiring an external electron donor to obtain high isotacticity polypropylene; during polymerization, Al/Ti and Al/Si are reduced, the polymerization time is lengthened, and high activity can still be maintained, suitable for producing low-ash polymers.Type: ApplicationFiled: September 10, 2019Publication date: March 5, 2020Inventors: Zhiwu WANG, Shuhang LI, Huashu LI, Junwei ZHANG, Le HU, Jinsong DAI, Qingli MA, Yong GAO, Hao CHEN, Wenjie JIAO
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Publication number: 20190309100Abstract: Provided is an alkoxy magnesium supported olefin polymerization catalyst component, comprising the reaction products of the following components: at least one alkoxy magnesium compound of Mg(OR1?)N(OR2?)2-N, at least one titanium compound of general formula Ti(OR)nX4-n, at least one ortho-phenylene diester electron donor compound a, and at least one diether electron donor compound b, wherein the molar ratio of a to b is 0.05 to 20. The catalyst component has an ultrahigh polymerization activity when used for olefin polymerization, and does not require the use of an external electron donor, but can also obtain a polymer with a high isotacticity, and the resulting polymer has a relatively wide molecular weight distribution and a relatively low ash content.Type: ApplicationFiled: June 24, 2019Publication date: October 10, 2019Inventors: Zhiwu WANG, Shuhang LI, Huashu LI, Junwei ZHANG, Le HU, Jinsong DAI, Qingli MA, Yong GAO, Wenjie JIAO, Xinghuo WANG, Hao CHEN
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Publication number: 20190169328Abstract: A method of making an olefin polymerization catalyst carrier with a general structure formula of Mg(ORI)n(ORII)2-n, wherein: 0?n?2, and RI and RII can be the same or different and are each independently selected from a C1-C20 hydrocarbon group by reacting an alcohol with a metal magnesium powder under the protection of nitrogen in the presence of a halogen or a halogen-containing compound to obtain a first product, and subjecting the product to a treatment pressure of from 0.2 to 5.0 MPa at a treatment temperature of from 80 to 200° C. for a duration of between 2 minutes and 6 hours. Also provided is a method of making an olefin polymerization solid catalyst component which includes the catalyst carrier, a titanium compound, and at least one electron donor compound.Type: ApplicationFiled: February 2, 2019Publication date: June 6, 2019Inventors: Zhiwu WANG, Shuhang LI, Huashu LI, Junwei ZHANG, Hui ZHANG, Le HU, Jinsong DAI, Qingli Ma, Jingyu WANG
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Patent number: 10208146Abstract: Provided is a solid catalyst component for olefin polymerization, which comprises Mg, Ti, a halogen and an electron donor. The electron donor is selected from at least one of ring-substituted ether-acid ester compounds of the general formula (I). Also provided are a catalyst containing the solid catalyst component and the application of the catalyst in reactions of olefin polymerization, particularly in the reaction of propylene polymerization.Type: GrantFiled: June 22, 2017Date of Patent: February 19, 2019Assignee: Beijing Lihe Technology Ltd.Inventors: Zhiwu Wang, Shuhang Li, Huashu Li, Junwei Zhang, Shubin Li, Jinsong Dai, Qingli Ma, Hao Chen, Lige Li, Wei Bai, Fengyao Lei
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Publication number: 20170355792Abstract: Provided is an olefin polymerization catalyst carrier with a general structure formula of Mg(ORI)n(ORII)2-n, wherein: 0?n?2, and RI and RII can be the same or different and are each independently selected from a C1-C20 hydrocarbon group. In the X-ray diffraction pattern of the catalyst carrier, there are a set of diffraction peaks in the range of a 2? diffraction angle of 5°-15°, and the set of diffraction peaks contain 1-4 main diffraction peaks. Also disclosed is an olefin polymerization solid catalyst component which is prepared from the carrier Mg(ORI)n(ORII)2-n, a titanium compound, and at least one electron donor compound. In addition, also disclosed is an olefin polymerization catalyst containing the solid catalyst component, at least one organic aluminum compound, and optionally, an external electron donor compound.Type: ApplicationFiled: July 28, 2017Publication date: December 14, 2017Inventors: Zhiwu WANG, Shuhang Li, Huashu Li, Junwei Zhang, Hui Zhang, Le Hu, Jinsong Dai, Qingli Ma, Jingyu Wang
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Publication number: 20170283530Abstract: Provided is a solid catalyst component for olefin polymerization, which comprises Mg, Ti, a halogen and an electron donor. The electron donor is selected from at least one of ring-substituted ether-acid ester compounds of the general formula (I). Also provided are a catalyst containing the solid catalyst component and the application of the catalyst in reactions of olefin polymerization, particularly in the reaction of propylene polymerization.Type: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Inventors: Zhiwu WANG, Shuhang LI, Huashu LI, Junwei ZHANG, Shubin LI, Jinsong DAI, Qingli MA, Hao CHEN, Lige LI, Wei BAI, Fengyao LEI
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Publication number: 20170088642Abstract: A catalyst component for olefin polymerization, comprising Mg, Ti, a halogen and an electron donor, wherein the electron donor is at least one unsaturated ring-substituted diacid ester compound. Also provided is a catalyst containing the catalyst component and the use of the catalyst in an olefin polymerization, e.g., propylene polymerization.Type: ApplicationFiled: December 13, 2016Publication date: March 30, 2017Inventors: Zhiwu WANG, Shuhang LI, Huashu LI, Junwei ZHANG, Hui ZHANG, Yena CHEN, Jinsong DAI, Qingli Ma, Jingyu WANG, Shubin LI, Hao CHEN, Fengyao LEI, Wei BAI, Lige LI, Yong GAO
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Publication number: 20160272733Abstract: Provided is a solid catalyst component for olefin polymerization, which comprises Mg, Ti, a halogen and an electron donor. The electron donor is selected from at least one of ring-substituted ether-acid ester compounds of the general formula (I). Also provided are a catalyst containing the solid catalyst component and the application of the catalyst in reactions of olefin polymerization, particularly in the reaction of propylene polymerization. The compound with a specific ring-substituted structure contained in the solid catalyst component of the present invention has a steric hindrance effect and a spatial configuration capable of fixing ether and acid ester functional groups, which has a positive influence on the participation thereof in the formation of an active centre of the catalyst and the improvement of the steric specificity of the catalyst. The solid catalyst component of the invention has a good activity. The polymers made therefrom have a high isotacticity.Type: ApplicationFiled: May 7, 2014Publication date: September 22, 2016Inventors: Zhiwu WANG, Shuhang LI, Huashu LI, Junwei ZHANG, Shubin LI, Jinsong DAI, Qingli MA, Hao CHEN, Lige LI, Wei BAI, Fengyao LEI
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Patent number: 8716417Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%.Type: GrantFiled: June 3, 2011Date of Patent: May 6, 2014Assignee: PetroChina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Zhifei Li, Baozuo Yin, Liang Cui, Jianying Zhang, Liang Wang
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Patent number: 8470941Abstract: A catalyst for homopolymerizing and copolymerizing propylene and its preparation and use. The catalyst component includes titanium compound containing at least one Ti-halogen bond and at least two kinds of electron donor compounds A and B supported on MgCl2.nROH adduct, wherein the electron donor compound A is a compound of formula (I), the electron donor compound B is ester or ether compound; the molar ratio between compound A and compound B is 0.1-5; the molar ratio between the total amounts of the two kinds of electron donors and MgCl2.nROH is 0.01-1, based on the amount of MgCl2.nROH; and the molar ration between the titanium compound containing Ti-halogen bond and MgCl2.nROH is 1-200. The catalyst has high activity, high stereospecificity and good copolymerization performance. In addition, the morphology of the polymer obtained therefrom is good.Type: GrantFiled: December 2, 2008Date of Patent: June 25, 2013Assignee: PetroChina Company LimitedInventors: Jianjun Yi, Baozuo Yin, Chunming Cui, Zhifei Li, Liang Cui, Huashu Li, Weihuan Huang, Jianying Zhang, Li Wang
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Patent number: 8404789Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The catalyst component comprises (1) an active magnesium halide, (2) a titanium compound containing at least one Ti-halide bond supported thereon, and (3) an electron donor selected from the group consisting of one or more sulfonyl-containing compounds having the following formula. There are two methods for preparing such solid catalyst component: I) treating the active magnesium halide (1) particles with alkylaluminum, subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times; II) adding spherical magnesium chloride alcoholate particles to the solution of titanium compound (2), subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times. The catalyst system comprises such solid catalyst component, a co-catalyst (alkylaluminum compound) and an external electron donor.Type: GrantFiled: May 15, 2008Date of Patent: March 26, 2013Assignee: Petrochina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Baozuo Yin, Jianying Zhang, Xiaomei Lang, Linmei Wu
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Publication number: 20130072647Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The components of the catalyst comprise an active magnesium halide, a titanium compound containing at least one Ti-halide bond loaded on the active magnesium halide, and an internal electron donor selected from one or more silicon esters compounds having formula (I). The method for preparing the catalyst components is that: adding spherical magnesium chloride alcoholate particles and the electron donor into the solution of titanium compound in sequence, and processing with the titanium compound for one or more times to obtain the catalyst. The catalyst system used for the olefin polymerization comprises the catalyst components, a cocatalyst and an external electron donor. The catalyst has high activity for the propylene polymerization, and the activity is 4399 gPP/gTi·h(50° C., 1 h, slurry polymerization at atmospheric pressure), and the isotacticity of the polymer is 98%.Type: ApplicationFiled: June 3, 2011Publication date: March 21, 2013Applicant: PetroChina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Zhifei Li, Baozuo Yin, Liang Cui, Jianying Zhang, Liang Wang
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Publication number: 20110207900Abstract: A catalyst for homopolymerizing and copolymerizing propylene and its preparation and use. The catalyst component includes titanium compound containing at least one Ti-halogen bond and at least two kinds of electron donor compounds A and B supported on MgCl2.nROH adduct, wherein the electron donor compound A is a compound of formula (I), the electron donor compound B is ester or ether compound; the molar ratio between compound A and compound B is 0.1-5; the molar ratio between the total amounts of the two kinds of electron donors and MgCl2.nROH is 0.01-1, based on the amount of MgCl2.nROH; and the molar ration between the titanium compound containing Ti-halogen bond and MgCl2.nROH is 1-200. The catalyst has high activity, high stereospecificity and good copolymerization performance. In addition, the morphology of the polymer obtained therefrom is good.Type: ApplicationFiled: December 2, 2008Publication date: August 25, 2011Inventors: Jianjun Yi, Baozuo Yin, Chunming Cui, Zhifei Li, Liang Cui, Huashu Li, Weihuan Huang, Jianying Zhang, Li Wang
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Publication number: 20100184930Abstract: An olefin polymerization catalyst and preparation method and use thereof are provided. The catalyst component comprises (1) an active magnesium halide, (2) a titanium compound containing at least one Ti-halide bond supported thereon, and (3) an electron donor selected from the group consisting of one or more sulfonyl-containing compounds having the following formula. There are two methods for preparing such solid catalyst component: I) treating the active magnesium halide (1) particles with alkylaluminum, subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times; II) adding spherical magnesium chloride alcoholate particles to the solution of titanium compound (2), subsequently adding the electron donor (3), treating it with the solution of titanium compound (2) one or more times. The catalyst system comprises such solid catalyst component, a co-catalyst (alkylaluminum compound) and an external electron donor.Type: ApplicationFiled: May 15, 2008Publication date: July 22, 2010Applicant: Petrochina Company LimitedInventors: Jianjun Yi, Chunming Cui, Huashu Li, Baozuo Yin, Jianying Zhang, Xiaomei Lang, Linmei Wu