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Components of catalyst used for olefin polymerization and preparation method thereof

A technology for olefin polymerization and catalyst, which is applied in the field of components for olefin polymerization catalyst and its preparation, and can solve the problems such as molecular weight distribution and hydrogen modulation sensitivity that need to be investigated and are not satisfactory.

Inactive Publication Date: 2014-01-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catalysts prepared by using this sulfonyl compound as an electron donor in olefin polymerization catalysts have high polymerization activity and stereospecificity when used in propylene polymerization, but they are still unsatisfactory, and their molecular weight Distribution and hydrogen tuning sensitivity are also to be investigated

Method used

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  • Components of catalyst used for olefin polymerization and preparation method thereof
  • Components of catalyst used for olefin polymerization and preparation method thereof
  • Components of catalyst used for olefin polymerization and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1 Synthesis of compound N-(2-pyridyl)-N,N-bis(trifluoromethylsulfonyl)amine

[0064] In a 500mL reaction flask, after nitrogen purging, 2-aminopyridine (4.7g, 0.05mol), pyridine (9.7mL, 0.12mol) and dichloroethane (150mL) were added in the presence of nitrogen, and the mixture was stirred After cooling to -78°C, a mixture of trifluoromethanesulfonic anhydride (20.2 mL, 0.12 mol) and dichloroethane (50 mL) was added dropwise, and stirred at this temperature for 2 h after the addition was complete. Then gradually warm up to room temperature, react at room temperature for 20 h, and add 50 mL of water to terminate the reaction. The aqueous phase was separated and extracted twice with dichloroethane. The organic phases were combined and washed with 10% aqueous sodium hydroxide solution and saturated brine respectively. The organic phase was dried over anhydrous sodium sulfate and the solvent was removed. Column chromatography, using a mixture of petroleum ether: eth...

Embodiment 2

[0066] Example 2 Synthesis of compound N-(3-chloro-2-pyridyl)-N,N-bis(trifluoromethylsulfonyl)amine

[0067] In a 500 mL reaction flask, after nitrogen purge, add 2-amino-5-chloropyridine (6.4 g, 0.05 mol), pyridine (9.7 mL, 0.12 mol) and dichloroethane (150 mL) in the presence of nitrogen , the mixture was cooled to -78°C with stirring, and a mixture of trifluoromethanesulfonic anhydride (20.2 mL, 0.12 mol) and dichloroethane (50 mL) was added dropwise, and stirred at this temperature for 2 h after the addition was complete. Then gradually warm up to room temperature, react at room temperature for 20 h, and add 50 mL of water to terminate the reaction. The aqueous phase was separated and extracted twice with dichloroethane. The organic phases were combined and washed with 10% aqueous sodium hydroxide solution and saturated brine respectively. The organic phase was dried over anhydrous sodium sulfate and the solvent was removed. Column chromatography, using a mixture of petro...

Embodiment 3

[0069] Example 3 Synthesis of compound N-(4-chloro-2-pyridyl)-N,N-bis(trifluoromethylsulfonyl)amine

[0070] In a 500 mL reaction flask, after nitrogen purge, add 2-amino-4-chloropyridine (6.4 g, 0.05 mol), pyridine (9.7 mL, 0.12 mol) and dichloroethane (150 mL) in the presence of nitrogen , the mixture was cooled to -78°C with stirring, and a mixture of trifluoromethanesulfonic anhydride (20.2 mL, 0.12 mol) and dichloroethane (50 mL) was added dropwise, and stirred at this temperature for 2 h after the addition was complete. Then gradually warm up to room temperature, react at room temperature for 20 h, and add 50 mL of water to terminate the reaction. The aqueous phase was separated and extracted twice with dichloroethane. The organic phases were combined and washed with 10% aqueous sodium hydroxide solution and saturated brine respectively. The organic phase was dried over anhydrous sodium sulfate and the solvent was removed. Column chromatography, using a mixture of petro...

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Abstract

The invention provides components of a catalyst used for CH2=CHR olefin polymerization, wherein R is hydrogen or a C1-C12 alkyl or aryl group. The components of the catalyst include magnesium, titanium, halogen and an electron donor. The electron donor is at least one compound selected from groups represented by a general formula (I); and in the general formula (I), R1 and R2 may be same or different and are respectively selected from the group consisting of a straight-chain or branched-chain C1-C10 alkyl or cycloalkyl group, a C6-C20 aryl or aralkyl group, hydrogen, halogen, an acyl group, an ester group, an amido group and an amino group.

Description

technical field [0001] The invention relates to a solid catalyst component containing a special functional group sulfonamide compound, a catalyst containing the solid catalyst component and the catalyst in CH 2 =CHR application in olefin polymerization, where R is hydrogen or C 1 -C 12 The alkyl or aryl group, especially when used in the polymerization of propylene, the catalyst has high activity and good stereoregularity, the catalyst hydrogen adjustment sensitivity is good, and the obtained polypropylene resin has a wide molecular weight distribution, The comprehensive performance of the catalyst is excellent. 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 don...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08L23/10C08F4/649C08F4/646
CPCC08F10/00C08F110/06C08F4/6496
Inventor 高明智李昌秀陈建华刘海涛李现忠马吉星马晶王军张晓帆张志会胡建军
Owner CHINA PETROLEUM & CHEM CORP
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