China Petroleum & Chemical Corporation

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

Linna Yang

Zhihui Zhang

Ruilin Duan

Ming Wang

Jing Yan Ma

Haitao Liu

Xiaoxia Cai

Yuexiang Liu

Jin Zhao

Mingzhi Gao

Xianzhi Xia

Weili Li

Changxiu Li

Ping Gao

Jigui Zhang

Renqi Peng

Yang Tan

Xiaofan Zhang

Jianhua Chen

Jixing Ma

Suzhen Qiao

Xianzhong Li

Jianjun Hu

Xinsheng Wang

Changyou Ma

Jing Ma

The present invention provides a catalyst component for olefin polymerization, obtained by a reaction of magnesium, titanium, halogen and an internal electron donor, the internal electron donor comprising an imine compound as shown in Formula Z. The present invention also provides a preparation method of the catalyst component, and a catalyst for olefin polymerization containing the same. When the catalyst of the present invention is used for olefin polymerization reaction, the catalyst has a high activity, and a slow rate of activity decay, and the obtained polymer has a high isotacticity index, and a wide molecular weight distribution. 

Catalyst component for olefin polymerization, and catalyst containing the same

The present invention discloses a catalyst component for propene polymerization, comprising titanium, magnesium, halogen, and internal electron donor A, wherein said internal electron donor A is selected from the compounds as shown in Formula I, in Formula I, R is selected from hydrogen, hydroxyl, and substituted or unsubstituted C-Chydrocarbyl, preferably from hydrogen, hydroxyl, and substituted or unsubstituted C-Calkyl, C-Caryl, C-Cheteroaryl, C-Calkylaryl and C-Carylalkyl; Rand Rmay be identical to or different from each other, and are selected from hydrogen and substituted or unsubstituted C-Chydrocarbyl, preferably from hydrogen and substituted or unsubstituted C-Calkyl, C-Caryl, C-Calkylaryl and C-Carylalkyl. According to the present invention, by using the compound as shown in Formula I as internal electron donor compound for propene polymerization, the catalyst has a higher activity, and a slow rate of delay of activity. The obtained polymer has not only a wider molecular weight distribution, but also a high melt index and isotacticity.

Catalyst component for propene polymerization, preparation method thereof, and catalyst containing the same

A spheric magnesium compound comprises a reaction product of at least the following components: (a) a magnesium halide having a formula of MgXR, wherein X is independently chloride or bromide, R is a C-Calkyl, a C-Caryl, a C-Calkoxy, or a C-Caryloxy, and n is 0 or 1; (b) an alcohol compound; and (c) an epoxy compound having a general formula (I), wherein Rand Rare independently hydrogen, a C-Clinear or branched alkyl, or a C-Clinear or branched haloalkyl. The magnesium compound has characteristic DSC curve and X-ray diffraction pattern, and can be used as a carrier for olefin polymerization catalyst.  

Carrier for olefin polymerization catalyst, preparation method and application thereof

A catalyst component for olefin polymerization is disclosed, which comprises a reaction product of the following components: (1) a spheric carrier; (2) a titanium compound; and optionally, (3) an electron donor, wherein the spheric carrier comprises a reaction product of at least the following components: (a) a magnesium halide represented by a general formula of MgXR, wherein X is independently chloride or bromide, R is a C-Calkyl, a C-Caryl, a C-Calkoxy, or a C-Caryloxy, and n is 0 or 1; (b) an alcohol compound; and (c) an epoxy compound represented by a general formula (I), wherein Rand Rare independently hydrogen, a C-Clinear or branched alkyl, or a C-Clinear or branched haloalkyl. When the catalyst of the invention is used in olefin polymerization, in particular in propylene polymerization, at least one of the following desired effects can be achieved: high polymerization activity of catalyst, high stereospecificity of catalyst, good hydrogen response of catalyst, high stereoregularity of polymer having high melt index, and low content of polymer fines. 

Catalyst component for olefin polymerization and catalyst comprising the same

Growing community of inventors

Beijing, China

Linna Yang