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Catalyst component used for olefin polymerization reaction and catalyst thereof

A technology of olefin polymerization and catalyst, which is applied in the field of catalyst components and catalysts, and can solve problems such as unsatisfactory results and reduced catalyst activity

Active Publication Date: 2008-04-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the results are not yet satisfactory
Generally, the activity of the catalyst is reduced due to the use of two or more internal electron donor compounds

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Catalyst synthesis: after high-purity N 2 In the fully replaced glass bottle, add 100ml of titanium tetrachloride, cool to -20°C, add 8g of spherical magnesium dichloride and ethanol adduct at -20°C (the molar ratio of ethanol / magnesium dichloride is: 2.6, according to the Chinese patent ZL 00109216.2, its publication number is the method preparation of the embodiment 1 of CN1330086A) heat up, add 2,2-dimethoxypropane 1.5ml in the temperature rise process, after maintaining reaction at 100 ℃ for half an hour, suction filtration, then use 100ml four Titanium chloride was treated twice, washed five times with hexane, discharged, and dried in vacuum to obtain spherical catalyst components.

[0050] Propylene polymerization:

[0051] In a 5L autoclave, add 2.5L of propylene, 1mmol of triethylaluminum, 0.05mmol of CHMMS, 10mg of the spherical catalyst prepared above, 1.5L of hydrogen (standard volume), raise the temperature to 70°C, and polymerize for 1 hour. The aggregati...

Embodiment 2

[0053] Catalyst synthesis: after high-purity N 2 In the fully replaced glass bottle, add 100ml of titanium tetrachloride, cool to -20°C, add 8g of spherical magnesium dichloride and ethanol adduct (same as Example 1) to heat up at -20°C, add 2 , 0.5ml of 2-dimethoxypropane and 1.5ml of diisobutyl phthalate (DIBP), maintained the reaction at 100°C for half an hour, filtered with suction, treated twice with 100ml of titanium tetrachloride, washed with hexane 5 times, discharging, vacuum drying to obtain spherical catalyst components.

[0054] Propylene polymerization: with embodiment 1. The aggregation results are listed in Table 1.

Embodiment 3

[0056] Catalyst is synthesized with embodiment 2

[0057] Polymerization: In a 5L autoclave, add 2.5L of propylene, 1mmol of triethylaluminum, 0.05mmol of CHMMS, 10mg of the spherical catalyst prepared above, 5L of hydrogen (standard volume), raise the temperature to 70°C, and polymerize for 1 hour. The aggregation results are listed in Table 1.

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Abstract

The present invention provides catalyst component and catalyst for olefin polymerization. The catalyst components include Ti, Mg, halogen, at least one dialkoxyl compound as shown as one electron donor, and one other electron donor compound selected from alcohol, ester, ether, ketone and amine. The catalyst of the present invention is applied in olefin polymerization, and has very high catalyzing activity, excellent hydrogen regulating sensitivity, and capacity of obtaining polymer in good granular form.

Description

technical field [0001] The present invention relates to a kind of catalyst component and catalyst for olefin polymerization, and it in alpha-olefin CH 2 = Use in polymerization of CHR and mixtures thereof, wherein R is hydrogen or an alkyl group of 1 to 12 carbon atoms. More specifically, it relates to a catalyst component containing a dihydrocarbyloxy hydrocarbon compound, a catalyst and applications thereof. technical background [0002] Catalysts comprising titanium compounds and electron donor compounds supported on active magnesium halides are well known in the art. [0003] US Patent No. 4,544,717 discloses that the stereospecificity of a catalyst can be improved by adding an electron donor compound (ie, an internal electron donor compound) to a solid component containing a titanium compound. So far, many patents have disclosed various internal electron donor compounds suitable for the preparation of Ziegler-Natta catalysts, and catalysts for olefin polymerization co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F4/645C08F4/02
Inventor 夏先知刘月祥张天一王新生陈颖尹茂平高平乔素珍
Owner CHINA PETROLEUM & CHEM CORP
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