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Catalyst component for olefin polymerization reaction and catalyst

A technology for olefin polymerization and catalysts, which is applied in the field of catalyst components and catalysts for olefin polymerization reactions, and can solve the problems of narrow molecular weight distribution of polymers, low catalyst activity and orientation

Inactive Publication Date: 2004-12-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned catalysts for olefin polymerization prepared by the above-mentioned 1,3-diether compounds containing two ether groups and dibasic aromatic carboxylic acid ester compounds have certain defects in practical applications. , such as the molecular weight distribution of the obtained polymer is also narrow; while the catalyst using 1,3-diketone compounds has low activity and orientation

Method used

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  • Catalyst component for olefin polymerization reaction and catalyst
  • Catalyst component for olefin polymerization reaction and catalyst
  • Catalyst component for olefin polymerization reaction and catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Synthesis of 1,2-Butanediol Benzoate

[0054] 1,2-Butanediol (2.5g), benzoyl chloride (7.8g), pyridine (8.8g) and tetrahydrofuran (70ml) were added to the reactor, mixed, and heated to reflux for 4 hours. Then it was lowered to room temperature, and water was added to the reaction system until the inorganic phase was transparent. The organic phase was separated, and the inorganic phase was extracted with ether and combined with the organic phase. After washing the organic phase with water, drying the organic phase with anhydrous sodium sulfate, and concentrating, the product was isolated to obtain 3.95 g of product. 1 H-NMR (TMS, CDCl 3 , ppm): δ 1.0-1.1 (3H), 1.7-1.9 (2H), 4.4-4.6 (2H), 5.4-5.5 (1H) and 7.4-8.2 (10H).

Embodiment 2

[0056] Synthesis of 2,3-Butanediol Benzoate

[0057] The synthesis method is the same as that of Preparation Example 1 to obtain 4.4 g of the product. 1 H-NMR (TMS, CDCl 3 , ppm): 1.4-1.6 (6H), 5.3-5.5 (2H) and 7.4-8.2 (10H).

Embodiment 3

[0059] Synthesis of Catechol Dibenzoate

[0060] 50ml of tetrahydrofuran was added to 5.5g of catechol, and 12.1ml of pyridine was added under stirring. After stirring well, slowly add 14.5ml of benzoyl chloride, stir at room temperature for 1h, then heat to reflux for 4h. Add 70ml of water to dissolve the formed salt, extract with toluene, separate the organic phase, wash twice with saturated brine, and dry over anhydrous sodium sulfate. Removal of the solvent gave a white solid. Recrystallize with ethyl acetate to obtain white crystals of catechol dibenzoate with a yield of 94%. m.p.75~77℃. 1 NMR (CDCl 3 ) δ (ppm): 7.35 to 7.54 (m, 10H, aromatic ring hydrogen), 8.05 to 8.12 (m, 4H, aromatic ring hydrogen).

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Abstract

A catalyst used for olefin polymerizing reaction CH2=CHR, where R is hydrogen or C1-C6 alkyl or aryl, contains Mg, Ti, halogen and electron doner which may be at least one dialkoxide compound.

Description

technical field [0001] The invention relates to a solid catalyst component containing a glycol ester compound of a special structure and a preparation method thereof, a catalyst containing the solid catalyst component and the catalyst in CH 2 = Application in CHR olefin polymerization, where R is hydrogen or C 1 -C 6 The alkyl or aryl group, especially in the application of propylene polymerization, can obtain polymers with higher yield, higher isotacticity and wider molecular weight distribution. technical background [0002] It is well known that solid titanium catalyst components based on magnesium, titanium, halogen and electron donors can be used for CH 2 = CHR Olefin polymerization, especially in the polymerization of α-olefins with 3 or more carbon atoms, polymers with higher yield and higher stereoregularity can be obtained, wherein the electron donor compound is in the catalyst component One of the essential ingredients, and with the development of internal elect...

Claims

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Application Information

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IPC IPC(8): C08F4/643C08F10/00
Inventor 刘海涛高明智李威莅杨燕涛丁春敏张天一王新生高平
Owner CHINA PETROLEUM & CHEM CORP
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