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Catalyst component for olefinic polymerization , and catalyst thereof

A technology of olefin polymerization and catalyst, which is applied in the field of spherical catalyst components and catalysts, and can solve problems that need to be further improved

Active Publication Date: 2009-07-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when described catalyst carries out propylene polymerization under the high hydrogen concentration, its stereospecificity, especially the isotacticity of the polymer of high melt index still needs to be further improved

Method used

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  • Catalyst component for olefinic polymerization , and catalyst thereof
  • Catalyst component for olefinic polymerization , and catalyst thereof
  • Catalyst component for olefinic polymerization , and catalyst thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A. Vector preparation

[0064] In a 0.5L autoclave, add 150ml of white oil, 30g of magnesium chloride, 50ml of ethanol and 3ml of o-methoxybenzoyl chloride. The temperature is raised to 125°C with stirring, and the mixture is stirred at 125°C for 2.5 hours. The mixture is placed at 120°C. In the silicone oil, stir for 45 minutes, then put it into 2L of hexane that was pre-cooled to -30°C, filter off the liquid, wash the solid with hexane five times, and vacuum dry to obtain 50 g of spherical magnesium chloride adduct carrier.

[0065] B. Preparation of catalyst

[0066] In a 300ml glass reaction flask, add 100ml of titanium tetrachloride, cool to -20°C, add 8 grams of the above spherical magnesium chloride adduct, heat up to 110°C, and add diisobutyl phthalate during the heating process 1.5ml, filtered off the liquid, washed twice with titanium tetrachloride, washed three times with hexane, and dried in vacuum to obtain a spherical catalyst.

[0067] C. Propylene polymeriza...

Embodiment 2

[0070] Same as in Example 1 except 5.0L hydrogen for propylene polymerization.

Embodiment 3

[0072] Same as in Example 1 except 8.0L of hydrogen for propylene polymerization.

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Abstract

The invention relates to a catalyst component used in olefin polymerization, which has a general formula as follows: MgX2-mROH-nE-pH2O, and is a product of contact between magnesium halide adduct and at least one titanium compound, wherein, X is chlorine or bromine, R is C1-C12 alkyl, C3-C10 naphthenic base or C6-C10 aryl, E is o-alkoxyphenyl acid ester compound, m is 1 to 5, n is 0.005 to 1.0, and p is 0 to 0.8. When the catalyst component is used in olefin polymerization, especially in propylene polymerization, not only the activity of polymerization is higher, the obtained polymer particle is shaped well, and the fine powder is less, but also the high melt index polymer obtained under high hydrogen concentration has high isotacticity, so the catalyst component is very applicable to the requirements of industrial production of polypropylene.

Description

Technical field [0001] The present invention relates to a spherical catalyst component and catalyst for olefin polymerization, and its use in α-olefin CH 2 =CHR and its mixture in the polymerization reaction application, wherein R is hydrogen or an alkyl group of 1-12 carbon atoms. More specifically, it relates to a catalyst containing the reaction product of a spherical adduct of the ternary components of magnesium halide, alcohol and o-alkoxy benzoate compound and a titanium compound and its application. technical background [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. [0003] The active magnesium halide often uses the adduct of magnesium halide and alcohol, which is used as a carrier to react with titanium halide and an electron donor compound to obtain a spherical catalyst. It has high performance when used for olefin polymerization, especially prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/654C08F4/02C08F10/00C08F12/08
Inventor 刘月祥夏先知张纪贵王新生高平乔素珍尹茂平李威莅张天一彭人琪陈颖张志会
Owner CHINA PETROLEUM & CHEM CORP
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