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Catalyst component for olefin polymerization, catalyst and application

A technology of olefin polymerization and catalyst, which is applied in the field of olefin polymerization, and can solve problems such as the overall effect of the catalyst is not outstanding

Active Publication Date: 2019-04-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A class of tricarboxylic acid ester compounds (CN102399329) and a class of disubstituted succinic anhydride compounds (CN102286117) have been reported in Chinese patents as catalysts synthesized by internal electron donors for olefin polymerization, but the overall effect of the catalyst is not protrude

Method used

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  • Catalyst component for olefin polymerization, catalyst and application
  • Catalyst component for olefin polymerization, catalyst and application
  • Catalyst component for olefin polymerization, catalyst and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The synthesis of embodiment 1 compound benzoic acid (ethoxycarbonyl) (phenyl) methyl ester

[0073] In a 250 ml three-necked flask, 1.80 g of ethyl mandelate, 80 ml of toluene and 1.02 g of triethylamine were added after purging with nitrogen, and stirred evenly at room temperature. 1.40 g of benzoyl chloride dissolved in 40 ml of toluene solution was slowly added dropwise at low temperature, stirred at room temperature for 4 hours and then heated to reflux for 12 hours. The reaction solution was cooled to room temperature, and an appropriate amount of water was added to dissolve the precipitate. Extract three times with anhydrous ether. The combined organic phases were dried overnight over anhydrous magnesium sulfate. After concentration under reduced pressure, the mixture was separated by column chromatography with ether / ethanol (1:20) to obtain a light yellow viscous liquid, which was dried in vacuo to obtain 2.04 g of the product (yield 72%).

[0074] The product...

Embodiment 2

[0075] The synthesis of embodiment 2 compound 4-n-butylbenzoic acid (ethoxycarbonyl) (phenyl) methyl ester

[0076] In a 250 ml three-necked flask, 1.80 g of ethyl mandelate, 80 ml of tetrahydrofuran and 1.05 g of triethylamine were added after purging with nitrogen, and stirred evenly at room temperature. 1.96 g of 4-n-butylbenzoyl chloride dissolved in 40 ml of tetrahydrofuran solution was slowly added dropwise at low temperature, stirred at room temperature for 4 hours, then heated and refluxed for 12 hours. The reaction solution was cooled to room temperature, and an appropriate amount of water was added to dissolve the precipitate. Extract three times with anhydrous ether. The combined organic phases were dried overnight over anhydrous magnesium sulfate. After concentration under reduced pressure, the mixture was separated by column chromatography with ether / ethanol (1:20) to obtain a light yellow viscous liquid, which was dried in vacuo to obtain 2.27 g of the product ...

Embodiment 3

[0078] The synthesis of embodiment 3 compound 4-isobutylbenzoic acid (ethoxycarbonyl) (phenyl) methyl ester

[0079] In a 250 ml three-necked flask, 1.80 g of ethyl mandelate, 80 ml of toluene and 1.05 g of triethylamine were added after purging with nitrogen, and stirred evenly at room temperature. 1.96 g of 4-isobutylbenzoyl chloride dissolved in 40 ml of toluene solution was slowly added dropwise at low temperature, stirred at room temperature for 4 hours, then heated and refluxed for 16 hours. The reaction solution was cooled to room temperature, and an appropriate amount of water was added to dissolve the precipitate. Extract three times with anhydrous ether. The combined organic phases were dried overnight over anhydrous magnesium sulfate. After concentration under reduced pressure, the mixture was separated by column chromatography with ether / ethanol (1:20) to obtain a light yellow viscous liquid, which was dried in vacuo to obtain 2.15 g of the product (63% yield). ...

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Abstract

The invention discloses a catalyst component for olefin polymerization, the catalyst component comprises magnesium, titanium, halogen and an internal electron donor compound, wherein the internal electron donor comprises a compound represented by a general formula I, wherein in the formula, A is selected from a carbon atom or a silicon atom; R1 and R2 can be same or different and are selected fromhydrogen, substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C2-C30 heterocyclyl, halogen, hydroxyl and substituted or unsubstituted C1-C30 alkoxy, R1 and R2 can be linked into aring; and R and R ' can be same or different, and are selected from substituted or unsubstituted C1-C30 alkyl and or substituted or unsubstituted C2-C30 heterocyclyl. The catalyst component and a catalyst prepared by the catalyst component are used for olefin polymerization, and have relatively high activity and adjustable orientation capability, the catalyst is good in hydrogen regulation sensitivity, and a prepared polymer is wide in molecular weight distribution.

Description

technical field [0001] The present invention relates to a catalyst component for olefin polymerization and a preparation method thereof, and a catalyst system for olefin polymerization. The application of the catalyst component and catalyst system in olefin polymerization and the olefin polymerization method belong to olefin polymerization field. Background technique [0002] For traditional Ziegler-Natta catalysts, with the development of electron donor compounds in the catalyst, polyolefin catalysts are also constantly updated. Catalyst research and development from the first generation of TiCl 3 AlCl 3 / AlEt 2 Cl system and the second generation of TiCl 3 / AlEt 2 Cl system, until the third generation of TiCl with magnesium chloride as the carrier, monoester or aromatic dibasic acid ester as the internal electron donor, and silane as the external electron donor 4 · ED · MgCl 2 / AlR 3 · In the ED system, the catalytic polymerization activity of the catalyst and the ...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F110/06C08F4/649
CPCC08F10/00C08F110/06C08F4/6494C08F2500/15C08F2500/12C08F2500/04
Inventor 王军高明智陈建华刘海涛马吉星蔡晓霞马晶胡建军李昌秀何世雄
Owner CHINA PETROLEUM & CHEM CORP
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