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Catalyst component for olefin polymerization, catalyst and olefin polymerization method

A technology for olefin polymerization and catalyst, applied in the field of catalyst components, can solve the problem of not outstanding overall effect of the catalyst, and achieve the effects of adjustable isotactic index, wide molecular weight distribution and good hydrogen modulation sensitivity

Active Publication Date: 2021-11-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, many new internal electron donor compounds containing nitrogen atom structure have emerged, such as maleamide internal electron donor compound (CN102268109) and hydrazide structure electron donor compound (CN103539874), diamide internal electron donor compound Electron donor compound (US2017 / 0240667), urethane electron donor compound (WO2014 / 048861) and amide ester electron donor compound (US2012322962) of Dow Global Technologies Co., Ltd., but the overall effect of the catalyst not outstanding

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1 Compound 8,9-benzo[h]-2,6-dioxa-4,9'-fluorenyl-1,7-cyclononanedione (FC-1)

[0068] In a 250 ml three-necked flask, add 4.52 g of 9,9-dimethylolfluorene, 120 ml of acetonitrile, 2.15 ml of triethylamine and 0.22 g of potassium chloride after purging with nitrogen, and add 5.02 g of potassium chloride dropwise at room temperature. gram of phthaloyl chloride, and stir well. Stir the reaction for 4 hours, then raise the temperature and reflux for 8 hours. After concentrating under reduced pressure, recrystallize from a mixed solution of diethyl ether / petroleum ether (1:50) to obtain light yellow crystals, and dry in vacuo to obtain 2.42 g of the product (yield 34%). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.10~8.08(2H,m,ArH),7.85~7.83(2H,m,ArH),7.58~7.55(4H,m,ArH),7.37~7.36(2H,m,ArH),7.26~7.24( 2H,m,ArH),4.83~4.81(4H,m,OCH 2 ).

Embodiment 2

[0069] Example 2 Compound 8,9,10-naphtho[1',8'-hi]-2,6-dioxa-4,9'-fluorenyl-1,7-cyclodecanedione (FC-2 )

[0070] In a 250 ml three-neck flask, add 4.52 g of 9,9-dimethylolfluorene, 120 ml of acetonitrile, 2.15 ml of triethylamine and 0.32 g of potassium chloride after purging with nitrogen, and add 5.00 g of potassium chloride dropwise at room temperature. gram of 1,8-naphthalene dicarbonyl chloride, and stir well. After stirring for 4 hours, the temperature was raised to reflux for 10 hours. After concentrating under reduced pressure, recrystallize from a mixed solution of diethyl ether / petroleum ether (1:50) to obtain yellow crystals, and dry in vacuo to obtain 2.43 g of the product (30% yield). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.35~8.32(2H,m,ArH),7.98~7.96(2H,m,ArH),7.85~7.83(2H,m,ArH),7.56~7.54(2H,m,ArH),7.47~7.45( 2H,m,ArH),7.38~7.36(2H,m,ArH),7.28~7.26(2H,m,ArH),4.83~4.81(4H,m,OCH 2 ).

Embodiment 3

[0071] Example 3 Compound 8,9,10,11-dibenzo[hj]-2,6-dioxa-4,9'-fluorenylundecacyclo-1,7-dione (FC-3)

[0072] In a 250 ml three-necked flask, add 4.52 g of 9,9-dimethylolfluorene, 130 ml of acetonitrile, 2.15 ml of triethylamine and 0.32 g of potassium chloride after purging with nitrogen, and add 5.54 g of potassium chloride dropwise at room temperature. gram of 1,1′-biphenyl dicarboxylic acid chloride, and stir well. After stirring for 4 hours, the temperature was raised to reflux for 14 hours. After concentrating under reduced pressure, recrystallize from a mixed solution of diethyl ether / petroleum ether (1:50) to obtain yellow crystals, and dry in vacuo to obtain 2.59 g of the product (yield 30%). 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.05~8.03(2H,m,ArH),7.85~7.83(2H,m,ArH),7.59~7.58(2H,m,ArH),7.55~7.53(4H,m,ArH),7.38~7.36( 2H,m,ArH),7.33~7.31(2H,m,ArH),7.28~7.26(2H,m,ArH),4.84~4.81(4H,m,OCH 2 ).

[0073] (2) Preparation of solid components in the catalyst and propylene poly...

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Abstract

The present invention relates to a catalyst component for olefin polymerization, a catalyst and a method for olefin polymerization. The catalyst component for olefin polymerization in the present invention includes magnesium, titanium, halogen and an internal electron donor, wherein the internal electron donor includes a cyclic compound represented by formula I. When the olefin polymerization catalyst component of the invention is used for propylene polymerization, the hydrogen adjustment sensitivity of the catalyst is good, the isotactic index of the obtained polymer can be adjusted, and the obtained polypropylene resin has a wide molecular weight distribution.

Description

technical field [0001] The present invention relates to a catalyst component for olefin polymerization, a catalyst and a method for 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 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 high isotacticity of the ob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F10/00C08F110/06C08F4/649
CPCC08F10/00C08F110/06C08F4/6494C08F2500/04C08F2500/12
Inventor 王军高明智马晶刘海涛何世雄刘文蕊马吉星胡建军李昌秀蔡晓霞陈建华
Owner CHINA PETROLEUM & CHEM CORP
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