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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

[0047] Synthesis of 4-(2,6-diisopropylphenylimino)-2-pentanone: In a three-necked flask, add 2.00 g of acetylacetone, 80 ml of isopropanol and 0.3 ml of glacial acetic acid after purging with nitrogen, Stir well at room temperature. At room temperature, a solution of 3.54 g of 2,6-diisopropylaniline in 50 ml of isopropanol was slowly added dropwise. After the addition, the mixture was stirred and reacted for 4 hours, then heated and refluxed for 16 hours. The reaction solution was concentrated under reduced pressure and separated by column chromatography to obtain 3.52 g of 4-(2,6-diisopropylphenylimino)-2-pentanone (68% yield). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):7.63~7.60(1H,m,ArH),7.02~6.98(2H,m,ArH),3.35~3.31(2H,m,CH),3.24~3.20(2H,s,CH 2 ),2.10~2.07(3H,s,CH 3 ),1.38~1.32(6H,m,CH 3 ),1.25~1.21(6H,m,CH 3 ),1.03~0.98(3H,m,CH 3 ); Mass Spectrum, FD-MS: 259.

Embodiment 2

[0049] Synthesis of 4-phenylimino-2-pentanone: In a 250 ml three-necked flask, after purging with nitrogen, add 2.00 g of acetylacetone, 60 ml of absolute ethanol and 15 ml of toluene, and stir evenly at room temperature. At room temperature, 1.92 g of aniline dissolved in 40 ml of ethanol solution was slowly added dropwise, stirred and reacted for 2 hours, then heated and refluxed for 12 hours. The reaction solution was concentrated under reduced pressure and separated by column chromatography to obtain 2.03 g of 4-phenylimino-2-pentanone (yield 58%). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):7.96~7.90(3H,m,ArH),7.53~7.47(2H,m,ArH),3.22~3.18(2H,s,CH 2 ),2.10~2.06(3H,s,CH 3 ),1.02~0.97(3H,s,CH 3 ); Mass Spectrum, FD-MS: 175.

Embodiment 3

[0051] Synthesis of 4-(2,6-dimethylphenylimino)-2-pentanone: In a three-necked flask, add 2.00 g of acetylacetone, 80 ml of isopropanol and 0.2 ml of glacial acetic acid after purging with nitrogen, Stir well at room temperature. At room temperature, a solution of 2.42 g of 2,6-dimethylaniline in 30 ml of isopropanol was slowly added dropwise. After the addition was completed, the mixture was stirred for 2 hours and then heated to reflux for 18 hours. The reaction solution was concentrated and separated by column chromatography to obtain 1.42 g of 4-(2,6-dimethylbenimino)-2-pentanone (yield 70%) as a light yellow liquid. 1 H-NMR (δ, ppm, TMS, CDCl 3 ):7.62~7.59(1H,m,ArH),7.02~6.98(2H,m,ArH),3.31~3.28(2H,m,CH 2 ),2.54~2.51(6H,m,CH 3 ),2.10~2.07(3H,s,CH 3 ),1.04~0.99(3H,s,CH 3 ); Mass Spectrum, FD-MS: 203.

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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 a ketoimine compound as shown in a formula I which is described in the specification and an aromatic ester 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 the catalyst component or catalyst is applied to polymerization of propylene, the catalyst is obviously improved in hydrogen sensitivity and has high activity and long-period activity; 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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IPC IPC(8): C08F10/00C08F10/06C08F4/649C08F4/646
CPCC08F4/6465C08F4/6494C08F4/6495C08F10/00C08F10/06
Inventor 王军高明智马晶刘海涛蔡晓霞陈建华马吉星李昌秀胡建军张志会
Owner CHINA PETROLEUM & CHEM CORP
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