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Preparation method of olefine polymerization catalyst solid component

A solid component and olefin polymerization technology, which is applied in the field of preparation of supported Ziegler-Natta catalyst solid components, can solve the problems of high catalyst cost and high price, achieve good particle shape, simple preparation, and cheap and easy raw materials The effect

Inactive Publication Date: 2005-03-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process of preparing catalysts using dialkylmagnesium as a raw material leads to increased catalyst costs because dialkylmagnesium is expensive and difficult to obtain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] The following examples prepare the magnesium complexes of the present invention.

[0028] A three-neck reaction flask with a magnetic stirring device was filled with N 2 fully permuted, and at N 2 Add 1.0 g of Mg powder, 120.1 g of I, and 100 ml of dichloromethane under airflow. Stir at 40°C for 2 hours, then add 8 ml of n-butanol and react for 8 hours to obtain a uniform and clear solution a.

[0029] Take 20 ml of solution a in N 2 Dry at 60° C. for 6 hours under airflow to obtain a white solid powder, which is a magnesium complex containing 9.36% by mass of magnesium, 69.08% by mass of n-butoxyl (n-BuO-) and 14.66% by mass of chlorine.

example 2

[0031] The magnesium complex solution was prepared according to the method of Example 1, except that the added alcohol was 8 ml of isobutanol (i-BuOH), and a uniform and clear solution b was obtained.

[0032] Take 20 ml of solution b in N 2 Dry at 60° C. under air flow for 6 hours to obtain a white solid powder, which is a magnesium complex containing 9.68% by mass of magnesium, 69.08% by mass of isobutoxy (i-BuO-), and 16.66% by mass of chlorine.

example 3

[0034] The magnesium complex solution was prepared according to the method of Example 1, except that the methyl chloride added during the reaction was 100 milliliters of chloroform, and the alcohol was 8 milliliters of ethanol (EtOH), to obtain a uniform and clear solution c.

[0035] Take 20 ml of solution c in N 2 Dry at 60° C. for 6 hours under airflow to obtain a white solid powder, which is a magnesium complex containing 9.88% by mass of magnesium, 58.08% by mass of ethoxy (EtO-), and 19.63% by mass of chlorine.

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Abstract

A solid catalyst component for preparing alpha-olefin homopolymer or copolymer with high catalytic activity is prepared through reacting between C2-C4 alcohol and Mg powder under existance of halomethane to obtain Mg matches solution, reacting on inorganic carrier, drying to obtain Mg carrier, and reacting on Ti(OR)nCl4-n in inertial hydrocarbon solvent, where R is C2-C8 alkyl and n=0-4.

Description

technical field [0001] The invention relates to a method for preparing a solid component of an olefin polymerization catalyst, in particular to a method for preparing a supported Ziegler-Natta catalyst solid component. Background technique [0002] At present, the high-efficiency Ziegler-Natta catalyst system widely used in industry comprises a Ziegler-Natta catalyst solid component and a cocatalyst, usually an organoaluminum compound. The solid component of the catalyst is composed of titanium halide supported on magnesium compound or other supports. Usually, titanium tetrachloride is supported on magnesium chloride to obtain a solid component of a high-efficiency Ziegler-Natta catalyst. [0003] The particle morphology and particle distribution of the solid component of the catalyst are crucial to the performance of the catalyst, and a narrow particle distribution is conducive to the stable operation of the production equipment. Especially in the gas phase polyethylene p...

Claims

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Application Information

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IPC IPC(8): C08F4/643C08F10/00
Inventor 荣峻峰张巍周旭华景振华洪晓宇毛国芳黄绪耕刘伟
Owner CHINA PETROLEUM & CHEM CORP
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