China Petroleum Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry

China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

Beijing Reasearch Institute of Chemical Industry

China Petroleum & Chemical Corporation

Junling Zhou

Zifang Guo

Dongbing Liu

Jie Lin

Rong Gao

Xiaofan Zhang

Xinyang Li

Jingjing Lai

Qingqiang Gou

Jie Fu

Shiyuan Xu

Junhui Zhang

Tingjie Huang

Lei Zhang

Xin Zhou

Hui Zhao

Hongtao Wang

Bingquan Mao

Jingyan An

Baoquan Xing

Changli Zhang

Yuanning Gu

Yan Li

Ting Huang

Zhufang Sun

Zhenjie Liu

Yu Wang

Wei Chen

Haitao Liu

Dong Ma

Shijun Zhang

Yuexiang Liu

Jin Zhao

Hongxu Yang

Shibo Wang

Xinping Lv

Ruixia Li

Meiyan Fu

Xianzhi Xia

Wenbo Song

Jigui Zhang

Lunjia Xie

Peng Kou

Lin Qi

Bingyi Li

Xinping Lü

Taoyi Zhang

Ruiping Wang

Ruen Wang

Yonghua Ma

Jingmei Zhang

Xiaojing Cheng

Wei Cen

Lian Yan

Yanhong Wan

A preparation method for a copolymer includes the step(s) of contacting an olefin and an unsaturated carboxylic acid shown in Formula II or a derivative of the unsaturated carboxylic acid shown in Formula II with a catalyst and optionally a chain transfer agent for reaction in the presence of an alkane solvent to obtain the copolymer. The copolymer is a spherical and/or spherical-like copolymer.

Copolymer of olefin and unsaturated carboxylic acid or unsaturated carboxylic acid derivative

A diimine metal complex represented by Formula I, a preparation method therefor, and application thereof are provided. The complex is used as a main catalyst in catalysts for olefin polymerization, and can achieve catalytic ethylene polymerization at a high temperature to prepare high molecular weight branched polyethylene.

Diimine metal complex, preparation method therefor, and application thereof

A method for preparing an olefin-olefinic alcohol copolymer and an olefin-olefinic alcohol copolymer prepared by the method are provided. The catalyst used in the method for preparing the olefin-olefinic alcohol copolymer has a diimine metal complex as shown in Formula I.

Method for preparing olefin-polar monomer copolymer

An amino-imine metal complex represented by Formula I, its preparation method and an application thereof are provided. The complex is used as a main catalyst in catalysts for olefin polymerization, and can catalyze the polymerization of ethylene at a relatively high temperature to prepare branched polyethylene having high molecular weight.

Amino-imine metal complex and preparation method therefor and application thereof

A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.

Catalyst system for olefin polymerization and use thereof

The invention provides an olefin-olefinic alcohol copolymer and a preparation method thereof, said copolymer comprising a spherical and/or spherical-like polymer. The copolymer provided by the invention exhibits a good morphology and has good prospects in industrial use.

Olefin-olefinic alcohol copolymer, and preparation method therefor

The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M, M, M, M, M, M, M', M&#x2032;, M&#x2032;, M&#x2032;, M&#x2032; and M&#x2032; are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, &#x2014;Rand &#x2014;OR, wherein Rand Rare each independently a C-Chydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C-Calkoxy and heteroatoms; and wherein, when among M-Mand M&#x2032;-M&#x2032;, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of Rand &#x2014;OR, the two adjacent groups may optionally be linked to form a ring, with a proviso that M, M, M, M, M, M, M&#x2032;, M&#x2032;, M&#x2032;, M&#x2032;, M&#x2032; and M&#x2032; are not simultaneously hydrogen. 

Olefin polymerization catalyst comprising cyclotriveratrylene and derivatives thereof

The present invention provides a preparation method of a catalyst component for olefin polymerization, comprising firstly dissolving an anhydrous magnesium halide into a mixed solvent which comprises an oxygen-containing organic titanium compound, an organic epoxy compound, a hydroxy-containing compound, and an inert solvent, and does not comprise a phosphate compound, so as to form a magnesium halide solution; then mixing the magnesium halide solution with a halogen-containing compound to precipitate a solid, so as to obtain the catalyst component, wherein the halogen-containing compound comprises at least one selected from a group consisting of halogen and titanium-containing compounds, halogenated organic hydrocarbon compounds, acyl halide compounds, halogen and phosphorus-containing compounds, halogen and boron-containing compounds, halogenated organic aluminum compounds, and halogen and silicon-containing compounds. The catalyst component prepared by the present invention has better particle morphology, and a good hydrogen response, and thus is favorable to use of the catalyst in a slurry or gas polymerization process device.

Preparation method of a catalyst component for olefin polymerization

A magnesium halide solution is disclosed. The magnesium halide solution comprises a magnesium halide, an oxygen-containing organic titanium compound, a hydroxyl-containing compound, and an organic solvent. The magnesium halide solution further comprises an organic heterocyclic compound. The organic solvent is a hydrocarbon and/or a halogenated hydrocarbon. The organic heterocyclic compound is at least one selected from a group consisting of a sulphur-containing organic heterocyclic compound, a nitrogen-containing organic heterocyclic compound, and an organic epoxy compound. The magnesium halide solution has a good stability, and can be used for preparing a catalyst for olefin polymerization and copolymerization reactions. The raw material of the magnesium halide solution is cheap and easy to be obtained. The preparing method is easy to be performed and is environment-friendly.

Magnesium halide solution, preparing method and use thereof

The present invention relates to a catalyst component for olefin polymerization, which comprises the reaction product of at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl group-containing compound, at least one chlorine-containing organo-aluminum, boron, phosphorus or silicon compound, and at least one polybutadiene block copolymer. The catalyst component of the present invention has well-shaped particles, and a narrow particle size distribution; a polymerization reaction of olefins with the catalyst component produces well-shaped polymer particles with a high bulk density (BD) and an excellent comprehensive catalytic performance. The present invention also relates to a preparation method for said catalyst component and the application thereof, particularly in the homopolymerization and copolymerization of olefins such as ethylene, propylene, butene, hexene and octene.

Catalyst component for polymerization of olefin and preparation method

A catalyst component for ethylene polymerization, comprising an organic silicon compound of the formula (I), below wherein Ris chosen from C-Caliphatic hydrocarbyl groups, and is substituted with at least one substituent chosen from halogens, C-Cacyloxy groups, epoxy, amino, C-Calkylamino groups, di(C-Calkyl)amino groups, C-Calkoxy groups, and oxo group; R, Rand R, which may be the same or different, are each chosen from C-Caliphatic hydrocarbyl, C-Calicyclic hydrocarbyl, C-Caryl, C-Caralkyl, and C-Calkaryl groups. A process for preparing the catalyst component and an active catalyst comprising the catalyst component and useful in polymerization, such as ethylene polymerization. 

Catalyst component for ethylene polymerization, preparation thereof, and a catalyst comprising the catalyst component

The present invention provides a catalyst component for ethylene polymerization, a process for preparing the same, a catalyst comprising the same, and a process for polymerizing ethylene using the catalyst. The catalyst component comprises a reaction product, supported on an inorganic oxide support, of a magnesium complex, a titanium compound, an alcohol compound, and an organoaluminum compound, wherein said magnesium complex is formed by dissolving a magnesium halide in a solvent system comprising an organic epoxy compound and an organo phosphorus compound. The catalyst according to the invention is especially suitable for slurry phase polymerization of ethylene. The catalyst according to the present invention has high catalytic activity, and a good hydrogen response, with the resultant polymer having a more uniform particle size diameter and a narrow particle size distribution.

Catalyst component for ethylene polymerization, the preparation thereof and catalyst comprising the same

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Beijing, China

Junling Zhou