China Petroleum & Chemical Corporation

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

Beijing Tocel Electronics Co., Ltd.

Zte Corporation

Eaton Intelligent Power Limited

Jianhua Chen

Ming Wang

Paul Richard Rakus

Jing Yan Ma

Haitao Liu

Xiaoxia Cai

Jixing Ma

Zhihui Zhang

Craig Allen Rodgers

Erik Russell Bogdon

Mingzhi Gao

Changxiu Li

Jianjun Hu

Xiaofan Zhang

Fangxi Hou

Xianzhong Li

Changyou Ma

Ruilin Duan

Linna Yang

Jing Ma

Fengshi Li

Yana Zhu

Guanggang Lin

Yaoming He

Rong Zheng

Hongfeng Zhu

Disclosed is a catalyst component for olefin polymerization. The catalyst component comprises magnesium, titanium, halogen and an internal electron donor. The internal electron donor includes an imine compound with a ketone group as shown in Formula I. Disclosed further is a method of preparing the catalyst component, and a catalyst for olefin polymerization containing the catalyst component. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, the catalyst has a high activity and a long term activity and good hydrogen response, and the obtained polymer has characteristics of an adjustable isotactic index and a relatively wide molecular weight distribution. 

Catalyst component for olefin polymerization, catalyst, and use thereof

Disclosed is a catalyst component for olefin polymerization. The catalyst component comprises magnesium, titanium, halogen and an internal electron donor. The internal electron donor includes an imine compound with a ketone group as shown in Formula I. Disclosed further is a method of preparing the catalyst component, and a catalyst for olefin polymerization containing the catalyst component. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, the catalyst has a high long-term activity and good hydrogen response, and the obtained polymer has characteristics of an adjustable isotactic index and a relatively wide molecular weight distribution. 

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

The present disclosure discloses a catalyst composition for olefin polymerization, comprising the following components: a): a solid catalyst component containing magnesium, titanium, halogens, and at least one internal electron donor having a lone pair of electrons; b): an aluminum alkyl compound; and c): an external electron donor containing a first external electron donor C1, which is a malonate compound. In the present disclosure, a catalyst composition having an external electron donor that contains a malonate compound is used in olefin polymerization, in particular propene polymerization, and can significantly improve catalytic activity and hydrogen response of the catalyst and expand molecular weight distribution of polymers, which facilitates development of different polymers.

Catalyst composition for olefin polymerization and application of same

The present disclosure provides a solid catalyst component for olefin polymerization, comprising magnesium, titanium, a halogen, and an electron donor, wherein the electron donor is at least one selected from the group consisting of diol diester compounds as shown in Formula (I). The catalyst according to the present disclosure has significantly improved polymerization activity, hydrogen response, and stereoselectivity. According to the present disclosure, when the catalyst system containing a diol diester compound as shown in Formula (I) of the present disclosure is used in olefin polymerization, the catalyst shows good comprehensive performance, including high catalytic activity. In particular, in the presence of highly concentrated hydrogen, the catalyst has an improved hydrogen response and/or isotacticity of the polymers obtained can be significantly improved. The catalyst of the present disclosure is beneficial for obtaining polymers with a high melt index and high isotacticity, and for development of polymers of different grades. 

A catalyst component for olefin polymerization comprising magnesium, titanium, halogen and electron donor, wherein the electron donor is selected from at least one of the diol diester compounds, when the diol diester comprised contains a certain amount of isomer with Fischer projection formula as shown in Formula (II), the activity and stereospecificity of the catalyst are greatly improved, especially in the production of polymers with high melt index, the isotactic index of the obtained polymers is improved substantially. 

Catalyst component for olefin polymerization reaction and catalyst comprising same

A security pulse generator and methods thereof are applied in fuel dispensers. The fuel dispenser includes a flow measuring transducer and a control main board on which there is a measuring microprocessor on the control main board. The security pulse generator includes: a pulse signal generating component, which generates a corresponding pulse signal according to the rotation of the flow measuring transducer; an encoding microprocessor, which receives and transduces the pulse signal, transmits it to the control main board, and meanwhile encodes the output pulse signal; a measuring microprocessor, which receives and decodes output pulse number encoded data from the encoding microprocessor and transforms it to the output pulse number after decoding it, then compares it to the pulse number of the control main board to determine if there is suspecting frauds in the fueling process.

Safety pulser for fuel dispenser and method for judging fraud activity

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Beijing, China

Jianhua Chen