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Catalyst component used for olefin polymerization, catalyst and preparation method of catalyst component

An olefin polymerization and catalyst technology, applied in the field of catalysts, can solve the problems of not too high polymerization activity and complicated preparation process, and achieve the effects of high bulk density, simplified preparation process and high activity

Inactive Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned technology is basically used to prepare ultra-high molecular weight polyethylene, and there are corresponding defects such as not too high polymerization activity and complicated preparation process.

Method used

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  • Catalyst component used for olefin polymerization, catalyst and preparation method of catalyst component
  • Catalyst component used for olefin polymerization, catalyst and preparation method of catalyst component
  • Catalyst component used for olefin polymerization, catalyst and preparation method of catalyst component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In the high-purity N 2 In the fully replaced reactor, sequentially add 0.042mol anhydrous MgCl 2 , 0.65mol toluene, add 0.026mol epichlorohydrin, 0.019mol benzyl alcohol, 0.044mol n-butanol, 0.060mol ethanol under stirring, raise the temperature to 60°C, keep it for 1 hour, add 0.0059mol n-butyl titanate, and then The solution was cooled to -10°C, then 0.27mol of titanium tetrachloride was dropped into it, and maintained for 70 minutes, then heated to 85°C, maintained for 1 hour, filtered, washed 4 times with hexane, and dried to obtain a solid catalyst component .

Embodiment 2

[0059] In the high-purity N 2 In the fully replaced reactor, sequentially add 0.042mol anhydrous MgCl 2 , 0.56mol toluene, add 0.026mol epichlorohydrin, 0.019mol benzyl alcohol, 0.044mol n-butanol, 0.060mol ethanol under stirring, raise the temperature to 60°C, keep it for 1 hour, add 0.0029mol n-butyl titanate, and then The solution was cooled to -10°C, then 0.27mol of titanium tetrachloride was dropped into it, and maintained for 70 minutes, then heated to 85°C, maintained for 1 hour, filtered, washed 4 times with hexane, and dried to obtain a solid catalyst component .

Embodiment 3

[0061] In the high-purity N 2 In the fully replaced reactor, sequentially add 0.042mol anhydrous MgCl 2 , 0.65mol toluene, add 0.026mol epichlorohydrin, 0.019mol benzyl alcohol, 0.14mol ethanol under stirring, raise the temperature to 60°C, keep it for 2.5 hours, add 0.0089mol n-butyl titanate, and then cool the solution to -10 0.54 mol of titanium tetrachloride was dropped into it, and maintained for 70 minutes, then raised to 85°C, maintained for 1 hour, filtered, washed with hexane four times, and dried to obtain a solid catalyst component.

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Abstract

The invention relates to a catalyst component used for olefin polymerization, a catalyst and a preparation method of the catalyst component. The catalyst component comprises reaction products of magnesium halide, organic epoxy compounds, alcohol compounds, titanate compounds and titanium halide. According to the catalyst component used for olefin polymerization, the catalyst and the preparation method of the catalyst component, the catalyst can have high activity, polymers have the high stacking density, and the preparation process for the catalyst is simplified relatively.

Description

technical field [0001] The invention belongs to the field of catalysts, and in particular relates to a catalyst component for olefin polymerization, a catalyst and a preparation method thereof. Background technique [0002] In the industrial production of polyethylene, titanium-based catalysts have been widely used due to their high catalytic efficiency and low price, and they have also been continuously developed during the application process. [0003] The reaction mechanism of titanium-magnesium catalysts with titanium compounds and magnesium compounds as basic components can be simply summarized as the combination of titanium compounds and magnesium compounds to obtain the main catalyst through various methods, during which various additives can be added for modification, and then Combined with co-catalysts such as aluminum compounds for ethylene polymerization. In the selection of actual titanium compounds, more titanium halides are used, and only a small amount of tit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F10/02C08F110/02C08F210/16C08F4/649C08F4/651C08F4/654
Inventor 王毅郭子芳周俊领张立伟苟清强黄廷杰徐世媛
Owner CHINA PETROLEUM & CHEM CORP
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