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Catalyst for olefin polymerization, prepn. method and polymerization method thereof

A technology of olefin polymerization and catalyst, which is applied in the field of catalysts for olefin polymerization reaction, can solve the problems of narrow polyolefin molecular weight distribution and limit the application of polyolefin, and achieve the effect of eliminating pollution

Inactive Publication Date: 2006-09-13
YINGKOU XIANGYANG CATALYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1,3-diether (EP1395617), especially aromatic 1,3-diether (CN1268957A, CN1141285A) and other compounds are catalysts prepared by electron donors with the highest catalyst activity today, and external electron donors can also be omitted, but The molecular weight distribution of polyolefin is narrow, which limits the application of polyolefin

Method used

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  • Catalyst for olefin polymerization, prepn. method and polymerization method thereof
  • Catalyst for olefin polymerization, prepn. method and polymerization method thereof
  • Catalyst for olefin polymerization, prepn. method and polymerization method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] a) Preparation of alcoholate

[0032] After the three-neck flask equipped with a stirrer and a thermometer was fully replaced with nitrogen, 25 grams of anhydrous MgCl, 30 ml of decane and 23.0 ml of 2-ethylhexanol were added. While stirring, the temperature was raised to 130°C, and the reaction was carried out at this temperature for 2h. Add 1.5ml tetrabutyl titanate and 2ml diisobutyl phthalate to 5ml toluene in advance, and stir at room temperature for 0.5h to obtain a complex solution. This toluene solution was added to a three-necked flask, and the reaction was continued at 130° C. for 1 h. After the reaction was completed, it was cooled to room temperature to form a stable alcoholate solution.

[0033] b) Preparation of (A) solid catalyst component

[0034] Within 30 minutes, the above-prepared alcoholate solution was added dropwise to a reactor equipped with a stirrer and a thermometer, fully replaced by nitrogen, filled with 200ml of titanium tetrachloride in...

Embodiment 2

[0041] Embodiment 2 is to change the 0.1mlCHMMS in the c) polymerization reaction of embodiment 1 to 0.2mlCHMMS; Embodiment 3 is to change the 0.1ml CHMMS in the c) polymerization reaction of embodiment 1 to 0.1mmol of 2,2' -Dimethoxy-1,1'-binaphthalene; Others are the same as in Example 1, and the results are listed in Table 1.

[0042] Example

Embodiment 4-5

[0044] Change the diisobutyl phthalate in the preparation of b) of Example 1 to 9,9-bis(methoxymethyl)fluorene, and the others are the same as in Example 1, and the results are listed in Table 2.

[0045] Example

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Abstract

The olefin polymerization activator contains A,B,C trimaceral. A is the solid catalyst containing the element of the titanium, the magnesium, the chlorine and the inner power electron body, the inner power electron body is combined with the 1,4-fragrant bis ether [2,2, - two alkoxy-1, 1'-biphenyl, 2,2-two alkoxy-1, 1'-biphenyl, 10, 10'-two alkoxy-9, 9'joining humble] and the organic acid ester or the 1,3-bis ether [9, 9-two (the methoxy cymene) fluorine, 2, 2-dialkyl-1, 3-dimethoxypropane]; B is the organo aluminium; C is the outer power electron body-the organic silicon compound or 1,4-fragrant bis ether. The activator possess the high catalytic activity and is used for the propylene aggregation and can be adjusted between the 40,000-150,000gPP / gCat;The degree isotacticity (80%-90%) and the molecular weight distribution of the polymer can be adopted in the wide within range. The invention provides the new process of the 1, 4-fragrant bis ether.

Description

technical field [0001] The present invention relates to catalysts for olefin polymerization. This catalyst is suitable for homopolymerization or copolymerization of α-olefins such as ethylene, propylene, 1-butene, and isobutene. technical background [0002] Since the advent of the Ziegler-Natta catalyst system, it has been continuously developed and has become the mainstream of the catalyst system for industrial olefin polymerization. At present, almost all polyolefin catalysts in the industry are Ziegler-Natta supported catalysts, and their development mainly goes through two processes: the progress of the carrier preparation process and the development of the internal electron donor. As an internal electron donor to promote the development of olefin polymerization catalysts, it has developed from monobasic acid esters, such as ethyl benzoate and ethyl p-ethoxybenzoate, to dibasic acid esters, such as di-n-butyl phthalate, Diisobutyl phthalate, dioctyl phthalate, etc. C...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F4/645
Inventor 王立才高占先李伟郑国彤董庆新刘日平王晓欢贾晓珑张楠汪复王井庄于秋王文伟孙圣敏卢凯杨学铎佟兆玉史继学蔡世绵
Owner YINGKOU XIANGYANG CATALYST
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