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Catalyst component for olefin polymerization, catalyst and olefin polymerization method

A technology of olefin polymerization and catalyst, which is applied in the field of catalyst components, can solve the problem that the overall effect of the catalyst is not outstanding, and achieve the effects of high activity, adjustable orientation ability, wide molecular weight distribution and high melt index

Active Publication Date: 2022-01-04
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

preparation example Construction

[0049] The following compounds were synthesized using similar preparation methods.

[0050] 2,4-Dimethyl-7,8-benzo[g]-1,5-dioxonanane-6,9-dione (FE-2): Pale yellow crystals, yield 37%. 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.12~8.10(2H,m,=CH),7.58~7.56(2H,m,ArH),4.15~4.13(2H,m,OCH),2.25~2.24(1H,m,CH 2 ),2.01~2.00(1H,m,CH 2 ),1.44~1.42(6H,m,CH 3 ).

[0051] 2,4-Dimethyl-3-ethyl-7,8-benzo[g]-1,5-dioxonane-6,9-dione (FE-3): colorless viscous liquid, Yield 30%. 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.12~8.10(2H,m,=CH),7.57~7.56(2H,m,ArH),4.13~4.11(2H,m,OCH),2.66~2.65(1H,m,CH),1.40~1.37 (6H,m,CH 3 ),1.28~1.26(2H,m,CH 2 ),0.97~0.95(3H,m,CH 3 ).

[0052] 3-isopropyl-3-isopentyl-7,8-benzo[g]-1,5-dioxonane-6,9-dione (FE-4): colorless liquid, yield 30 %. 1 H-NMR (δ, ppm, TMS, CDCl 3 ):8.10~8.09(2H,m,=CH),7.57~7.55(2H,m,ArH),4.30~4.28(2H,m,OCH 2 ),4.06~4.04(2H,m,OCH 2 ),1.84~1.83(1H,m,CH),1.79~1.78(1H,m,CH),1.25~1.23(2H,m,CH 2 ),1.21~1.20(2H,m,CH 2 ),1.02~1.00(6H,m,CH 3 ),0.97~0.95(...

Embodiment

[0056] (1) Preparation of catalyst solid components

[0057] In the reactor fully replaced by high-purity nitrogen, 4.8g of magnesium chloride, 95mL of toluene, 4ml of epichlorohydrin, and 12.5mL of tributyl phosphate (TBP) were sequentially added, and the temperature was raised to 50°C under stirring and maintained for 2.5 hours. After the solid is completely dissolved, add 1.4 g of phthalic anhydride and maintain it for 1 hour, cool the solution to below -25°C, and add TiCl dropwise within 1 hour 4 60mL, slowly raise the temperature to 80°C, gradually precipitate the solid, add 6mmol of the compound internal electron donor compound described by the general formula I and general formula II (see Table 1), and maintain the temperature for 1 hour. After hot filtration, 150 mL of toluene was added and washed twice to obtain a solid. 100 mL of toluene was added, the temperature was raised to 110° C., and washing was performed three times for 10 minutes each. Then add 60 mL of he...

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Abstract

The present invention relates to a catalyst component for olefin polymerization, a catalyst and an olefin polymerization method. The catalyst component for olefin polymerization according to 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 and an aromatic carboxylate represented by formula Z acid ester compound. When the olefin polymerization catalyst component of the present invention is used for propylene polymerization, the catalyst has good hydrogen modulation sensitivity, the isotactic index of the obtained polymer is adjustable, 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): C08F10/00C08F4/651C08F4/646C08F110/06
CPCC08F10/00C08F110/06C08F4/651C08F4/6465C08F2500/15C08F2500/12C08F2500/04
Inventor 王军高明智刘海涛马晶马吉星蔡晓霞何世雄刘文蕊胡建军李昌秀张天一
Owner CHINA PETROLEUM & CHEM CORP
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