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Catalyst components and catalysts for olefin polymerization

A technology of olefin polymerization and catalyst, which is applied in the field of spherical catalyst components and catalysts, and can solve the problems of poor particle shape, unstable carrier particle size, unfavorable carrier industrial production, etc.

Active Publication Date: 2011-12-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But, the inventor finds in research, after introducing electron donor compound (the third component) in the preparation of magnesium chloride / ethanol adduct carrier, sometimes can cause the particle morphology of carrier particle to deteriorate, as prone to abnormal shape material ( Such as spheroidal, strip-shaped particles, etc.), carrier particle size instability and carrier particle stickiness, etc., are not conducive to the industrial production of the carrier and its application in the preparation of olefin polymerization catalysts

Method used

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  • Catalyst components and catalysts for olefin polymerization
  • Catalyst components and catalysts for olefin polymerization
  • Catalyst components and catalysts for olefin polymerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A, the preparation of spherical magnesium chloride adduct

[0069] In a 500mL reactor, add 150ml methyl silicone oil, 30g magnesium chloride, 50ml ethanol and 9ml dimethoxypropane in sequence, and raise the temperature to 125°C while stirring. After constant temperature reaction for 2 hours, the mixture was pressed into octylphenol polyoxyethylene (n=10) ether / methyl silicone oil (1.5ml / 350ml) preheated to 115°C, and stirred at high speed for 30 minutes to disperse. Then nitrogen was injected into 2L of hexane pre-cooled to -30°C, the liquid was filtered off, the solid was washed 5 times with hexane, and dried in vacuum to obtain a spherical magnesium chloride adduct. The average particle size (D50) was 45.2 μm, and the particle size distribution value SPAN ((D90-D10) / D50) was 0.96.

[0070] B, the preparation of spherical catalyst component

[0071] Into a 300mL glass reaction bottle, 90ml of titanium tetrachloride and 10ml of hexane were sequentially added, cooled t...

Embodiment 2

[0075] Except propylene polymerization hydrogen 5.0L, others are the same as embodiment 1.

Embodiment 3

[0077] Except that in the preparation of the catalyst component, the internal electron donor compound diisobutyl phthalate was changed to 2.0ml 2,4-pentanediol dibenzoate (PDB), the others were the same as in Example 1.

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Abstract

The present invention relates to a catalyst component for olefin polymerization comprising a contact product of a magnesium halide adduct represented by the general formula (I) MgX2-mROH-kE-pF-qH2O and at least one titanium compound , in the general formula (I), E is the C shown in the general formula (II), the C-dioxyhydrocarbon compound; F is the polyoxyethylene ether compound shown in the general formula (III), the general formula (III) In 1≤n≤30. When the catalyst is used for propylene polymerization, while maintaining high polymerization activity and high orientation ability, it shows high hydrogen adjustment sensitivity, and the particle shape of the obtained polymer is good.

Description

technical field [0001] The present invention relates to a kind of spherical catalyst component and catalyst for olefin polymerization, and it in α-olefin CH 2 = Use in polymerization of CHR and mixtures thereof, wherein R is hydrogen or an alkyl group of 1 to 12 carbon atoms. More specifically, it relates to a catalyst component obtained by reacting a spherical adduct comprising magnesium halide, alcohol, an electron donor compound and a polyoxyethylene ether compound quaternary component with a titanium compound and its application. Background technique [0002] Catalysts comprising titanium compounds and electron donor compounds supported on active magnesium halides are well known in the art. The active magnesium halide described therein 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, which is used for olefin polymerization, especially propylene po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F4/654C08F10/00
Inventor 张继贵刘月祥夏先知李威莅王新生尹茂平高平乔素珍赵瑾杨林娜彭人琪
Owner CHINA PETROLEUM & CHEM CORP