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Catalyst component for olefin polymerization and preparation method thereof

A technology of olefin polymerization and catalyst, which is applied in the field of olefin polymerization and can solve problems such as unfavorable environmental protection requirements

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

[0005] To sum up, the co-eluting agent reported in the current patent literature for the better effect of preparing olefin polymerization catalysts is phthalic anhydride, and the existence of this compound is easy to form phthalates, which is not conducive to the current Therefore, it is necessary to carry out innovative work on the basis of existing technologies to obtain polyolefin catalysts with good comprehensive performance and more industrial practicability

Method used

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  • Catalyst component for olefin polymerization and preparation method thereof
  • Catalyst component for olefin polymerization and preparation method thereof
  • Catalyst component for olefin polymerization and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The synthesis of embodiment 1 compound 2-phenyl-2-benzoyloxy ethyl acetate

[0061] 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%).

[0062] The product is detected, th...

Embodiment 2

[0063] The synthesis of embodiment 2 compound 2-phenyl-2-(4-n-butylbenzoyloxy group) ethyl acetate

[0064] 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 (67% yie...

Embodiment 3

[0066] Example 3 Compound 2-phenyl-2-(4-isobutylbenzoyloxy) ethyl acetate synthesis

[0067] 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).

[0068] The product is ...

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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 a compound represented by a general formula I is added in the preparation process of the catalyst component to serve as a precipitation assistant, in the formula, A is selected from the group consisting of - (CR1R2) nor -(XR1R2)n-(YR3)m-, X is a carbon atom or a silicon atom, Y is a nitrogen atom or a phosphorus atom, n is equal to 1-5, and m is equal to 0-5; and R1 to R3 are independently selected from hydrogen,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 a ring; andR 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, anda prepared polymer is wide in molecular weight distribution.

Description

technical field [0001] The invention relates to a catalyst component for olefin polymerization and a preparation method thereof, a catalyst system for olefin polymerization, the application of the catalyst component and the catalyst system in olefin polymerization and an olefin polymerization method, belonging to the field of olefin polymerization . Background technique [0002] Olefin polymerization catalysts can be divided into three categories, namely traditional Ziegler-Natta catalysts, metallocene catalysts and non-metallocene catalysts. For the traditional Ziegler-Natta catalyst for propylene polymerization, with the development of the electron donor compound in the catalyst, the polyolefin catalyst is 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 ar...

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 王军高明智马晶刘海涛陈建华马吉星蔡晓霞李昌秀胡建军何世雄
Owner CHINA PETROLEUM & CHEM CORP
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