Catalyst component applied to vinyl polymerization reaction and catalyst thereof

An ethylene polymerization and catalyst technology, applied in the field of catalyst components, can solve the problems of high catalyst cost, increased processing difficulty, unexplained hydrogen modulation sensitivity of compound electron donors, etc.
CN102807632AActive Publication Date: 2012-12-05CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-12-05

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Abstract

The invention relates to a catalyst component applied to a vinyl polymerization reaction, a preparation method of the catalyst component and a catalyst thereof. The catalyst component comprises a magnesium-alcohol compound, a titanium compound, an alkoxy compound, an organic aluminum compound, a long-carbon-chain monoester compound and a sulfuryl-containing compound. The catalyst has proper activity and very high hydrogen regulation sensitivity; and the piling density of obtained polymer powder is high, and the molecular weight distribution is wide.
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Description

technical field

[0001] The present invention relates to a catalyst component for ethylene polymerization, a preparation method of the catalyst component and a catalyst thereof. More specifically, it relates to an ethylene polymerization catalyst with high hydrogen modulation sensitivity, which can be used to prepare polymers with high bulk density and wide molecular weight distribution. Background technique

[0002] During the development of Ziegler-Natta catalysts, electron donors have always been a hot topic in catalyst research due to their ability to significantly improve catalyst performance and polymer stereoselectivity. A key requirement for the Z-N type ethylene polymerization catalyst prepared on the magnesium chloride alcoholate support is that the catalyst has high hydrogen tuning sensitivity and the obtained polymer has high bulk density. In order to obtain the above effects, internal electron donors such as ethers, esters and amines are usually added to the cat...

Claims

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