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Catalyst component and catalyst used for olefin polymerization, and application thereof

A technology of olefin polymerization and catalyst, which is applied in the field of olefin polymerization and can solve problems such as ligand compounds that have not yet been seen

Active Publication Date: 2018-04-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been no reports on the direct application of such ligand compounds in the preparation of propylene polymerization catalysts and their use in propylene polymerization.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Synthesis of 6-(phenylimino)ethyl-2-acetylpyridine: In a 250 ml three-necked flask, add 3.26 g of 2,6-diacetylpyridine, 100 ml of isopropanol and 0.2 ml of ice Acetic acid, stir well at room temperature. At room temperature, 1.96 g of aniline dissolved in 20 ml of isopropanol solution was slowly added dropwise. After the addition was completed, the reaction was stirred for 2 hours, and then the temperature was raised to reflux for 12 hours. The reaction solution was concentrated under reduced pressure and separated by column chromatography to obtain 2.83 g of 6-(phenylimino)ethyl-2-acetylpyridine (62% yield). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.46~8.42(2H,m,ArH),7.96~7.93(2H,m,ArH),7.32~7.28(2H,m,ArH),7.10~7.06(2H,m,ArH),2.35~2.32( 3H,s,CH 3 ),1.15~1.12(3H,s,CH 3 ); Mass Spectrum, FD-MS: 238.

Embodiment 2

[0050] Synthesis of 6-(4-chlorophenylimino) ethyl-2-acetylpyridine: In a 250 ml three-necked flask, add 1.63 g of 2,6-diacetylpyridine, 80 ml of isopropanol and 0.2 ml of glacial acetic acid, stirred well at room temperature. Slowly add 1.27 g of p-chloroaniline dissolved in 20 ml of isopropanol solution dropwise at room temperature, stir and react for 2 hours after the addition, then raise the temperature and reflux for 18 hours. The reaction solution was concentrated under reduced pressure and separated by column chromatography to obtain 1.63 g of 6-(4-chlorophenylimino)ethyl-2-acetylpyridine (69% yield). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.44~8.40(2H,m,ArH),816~8.14(1H,m,ArH),7.46~7.41(2H,m,ArH),7.12~7.08(2H,m,ArH),2.38~2.34( 3H,s,CH 3 ),1.12~1.09(3H,s,CH 3 ); Mass Spectrum, FD-MS: 272.

Embodiment 3

[0052] Synthesis of 6-(2,6-diisopropylphenylimino)ethyl-2-acetylpyridine: In a 250 ml three-necked flask, add 1.63 g of 2,6-diacetylpyridine, 80 mL of isopropanol and 0.1 mL of glacial acetic acid, stirred well at room temperature. 1.78 g of 2,6-diisopropylaniline dissolved in 20 ml of isopropanol solution was slowly added dropwise at room temperature. After the addition was completed, the mixture was stirred for 2 hours and then heated to reflux for 12 hours. The reaction solution was concentrated under reduced pressure and separated by column chromatography to obtain 2.32 g of 6-(2,6-diisopropylbenimino)ethyl-2-acetylpyridine (yield 72%). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.45~8.41(2H,m,ArH),7.96~7.92(2H,m,ArH),7.36~7.34(2H,m,ArH),3.22~3.18(2H,m,CH),2.27~2.24( 3H,s,CH 3 ),1.28~1.24(6H,m,CH 3 ),1.14~1.10(6H,m,CH 3 ),1.10~1.07(3H,s,CH 3 ); Mass Spectrum, FD-MS: 322.

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PUM

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Abstract

The invention provides a catalyst component for olefin polymerization. The catalyst component comprises elemental magnesium, elemental titanium, halogen and internal electron donors, wherein the internal electron donors are composed of an imine compound as shown in a formula I which is described in the specification and a diether compound as shown in a formula II which is described in the specification. The invention also provides a catalyst component for olefin polymerization. The catalyst comprises A) the catalyst component; B) an organo-aluminum compound; and C) an optional organo-silicon compound. The invention further provides application of the catalyst component and catalyst to the field of polymerization of olefins, especially propylene. As applied to polymerization of propylene, such a catalyst system has high long-period activity and adjustable orientation capability; and a prepared polymer is wide in molecular weight distribution.

Description

technical field [0001] The invention relates to the field of olefin polymerization, in particular to a catalyst component for olefin polymerization, a catalyst and an application thereof. 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, to 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 ·ED system and the newly developed cataly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F110/06C08F4/649
CPCC08F110/06C08F2410/01C08F4/6495C08F4/6494
Inventor 王军高明智刘海涛马吉星蔡晓霞陈建华马晶李昌秀胡建军段瑞林
Owner CHINA PETROLEUM & CHEM CORP
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