Catalyst component and catalyst system for olefin polymerization, application of catalyst component and catalyst system, and olefin polymerization method

An olefin polymerization and catalyst technology, which is applied to catalyst components and catalyst systems for olefin polymerization and its application and the field of olefin polymerization, can solve problems such as mutual adhesion of carrier particles, and achieve good particle shape, good shape and high stereo-orientation. effect of ability
CN102796210AActive Publication Date: 2012-11-28CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-11-28

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Abstract

The invention provides a catalyst component for olefin polymerization and application of the catalyst component. The catalyst component contains a product obtained by reacting a magnesium halide adduct, a titanium compound and at least one optional internal electron donor compound, wherein the magnesium halide adduct is shown as MgX<1>Y-mEtOH-n(LB1)-k(LB2)-p(LB3). The invention also provides a catalyst system for olefin polymerization and application of the catalyst system. The catalyst system contains the catalyst component and one or more organic aluminum compounds. The invention also provides an olefin polymerization method. The method comprises the following step of: contacting one or more olefins and the catalyst system under the condition of olefin polymerization. The catalyst system has high hydrogen regulation sensitivity and stereospecificity in olefin polymerization, and good balance between the hydrogen regulation sensitivity and the stereospecificity of the catalyst system is achieved.
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Description

Technical field

[0001] The invention relates to a catalyst component and a catalyst system for olefin polymerization, its application and an olefin polymerization method. Background technique

[0002] The preparation of Ziegler-Natta catalysts by supporting titanium compounds and electron donor compounds on active magnesium halide is well known in the prior art. Among them, the active magnesium halide often adopts the adduct of magnesium halide and alcohol, which is used as a carrier to react with titanium halide and electron donor compound to obtain a spherical catalyst. The spherical catalyst is used for olefins (especially propylene). During polymerization, it has higher polymerization activity and stereospecific ability, and the obtained polymer also has better particle morphology and higher apparent density.

[0003] Most of the published magnesium halide·alcohol adducts are alcoholates of magnesium chloride, usually containing magnesium chloride and alcohol as a binary compo...

Claims

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