Catalyst component for olefin polymerization reaction and catalyst

A technology for olefin polymerization and catalyst, which is applied in the field of catalyst components and catalysts for olefin polymerization, and can solve the problems of narrow molecular weight distribution of polymers and unfavorable polymer development.

Inactive Publication Date: 2004-12-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned catalysts for olefin polymerization prepared by using the above-mentioned binary aromatic carboxylic acid ester compounds and 1,3-diether compounds containing two ether groups have certain defects in practical applications. , For example, the molecular weight distribution of the polymer obtained by using the catalyst of binary aromatic carboxylate compound and 1,3-diether compound is narrow, which is not conducive to the development of different grades of polymer

Method used

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  • Catalyst component for olefin polymerization reaction and catalyst
  • Catalyst component for olefin polymerization reaction and catalyst
  • Catalyst component for olefin polymerization reaction and catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 Preparation of 2,2-dimethyl-1,5-pentanediol dibenzoate

[0050] (1) Preparation of 2,2-dimethylglutarate diethyl ether

[0051] Add 0.3 mol of ethanol, 40 ml of toluene and 0.4 ml of concentrated sulfuric acid to 0.1 mol of 2,2-dimethylglutaric acid, stir and mix well, then heat to reflux. Use a water separator to remove water until the separated water reaches the theoretically calculated amount to stop the reaction. Neutralize with saturated sodium carbonate solution, extract with ethyl acetate, separate the upper layer solution, wash with saturated saline solution until neutral, and dry over anhydrous sodium sulfate. The solvent was removed and distilled under reduced pressure to obtain colorless liquid 2,2-dimethylglutaric acid diethyl ester with a yield of 90%. 1 HNMR (TMS, CDCl 3 , ppm): δ1.18 (6H, s, methyl H), 1.23 ~ 1.27 (6H, t, methyl H of ethanol), 1.7 ~ 1.8 (2H, t, methylene H), 2.25 ~ 2.29 ( 2H, t, methylene H), 4.0 ~ 4.1 (4H, m, methylene H of...

Embodiment 2

[0056] Embodiment 2: 1, the preparation of 1-dibenzoyloxyethyl cyclohexane

[0057] (1) Preparation of 1,1-diathanol diethyl cyclohexane

[0058] Add 0.3 mol of ethanol, 40 ml of toluene and 0.4 ml of concentrated sulfuric acid to 0.1 mol of 1,1-diacetate cyclohexane, stir and mix well, then heat to reflux. Use a water separator to remove water until the separated water reaches the theoretically calculated amount to stop the reaction. Neutralize with saturated sodium carbonate solution, extract with ethyl acetate, separate the upper layer solution, wash with saturated saline solution until neutral, and dry over anhydrous sodium sulfate. The solvent was removed, and a colorless liquid was obtained by distillation under reduced pressure with a yield of 90%. 1 HNMR (TMS, CDCl 3 , ppm): δ1.12~1.13 (6H, t, methyl H), 1.3~1.4 (10H, m, methylene H of cyclohexane), 2.48 (4H, s, methylene H), 4.0 ~4.1 (4H, m, methylene H of ethanol)

[0059] (2) Preparation of 1,1-diethanol cycloh...

Embodiment 3

[0063] Example 3 Preparation of 1,5-diphenyl-1,5-pentanediol dibenzoate

[0064] (1) Preparation of 1,5-diphenyl-1,5-pentanediol

[0065] Add 100ml of anhydrous tetrahydrofuran to 3g of lithium aluminum hydride, and stir vigorously under ice-bath cooling. Slowly add 0.05mol 1,5-diphenyl-1,5-pentanedione dropwise, then heat to reflux for 5h. After cooling, decompose excess lithium aluminum tetrahydrogen with water, stir the extraction solution with ethyl acetate, filter, and dry over anhydrous sodium sulfate. The solvent was removed, and the white solid 1,5-diphenyl-1,5-pentanediol was obtained by column chromatography, the yield was 85%, and the mp was 64-67°C. IR spectrum at 3400cm -1 There is a strong -OH absorption peak at 1700cm -1 There is no -CO- absorption peak on the left and right, which proves that the reduction reaction is complete.

[0066] (2) Preparation of 1,5-diphenyl-1,5-pentanediol dibenzoate

[0067] Add 30ml tetrahydrofuran and 0.09mol pyridine to 0.0...

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PUM

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Abstract

A catalyst used for olifin polymerizing reaction CH2=CHR, where R is hydrogen or C1-C6 alkyl or aryl, contains Mg, Ti, halogen and electron doner which may be at least one dialkoxide compound.

Description

technical field [0001] The invention relates to a solid catalyst component containing a glycol ester compound of a special structure and a preparation method thereof, a catalyst containing the solid catalyst component and the catalyst in CH 2 = Application in CHR olefin polymerization, where R is hydrogen or C 1 -C 6 The alkyl or aryl group, especially in the application of propylene polymerization, can obtain polymers with higher yield, higher isotacticity and wider molecular weight distribution. technical background [0002] It is well known that solid titanium catalyst components based on magnesium, titanium, halogen and electron donors can be used for CH 2 = CHR Olefin polymerization, especially in the polymerization of α-olefins with 3 or more carbon atoms, polymers with higher yield and higher stereoregularity can be obtained, wherein the electron donor compound is in the catalyst component One of the essential ingredients, and with the development of internal elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/643C08F10/00
Inventor 高明智刘海涛李威莅杨燕涛丁春敏张天一王晓东陈建华
Owner CHINA PETROLEUM & CHEM CORP
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