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Solid catalyst composition used for olefine polymerization and catalyst thereof

A solid catalyst, a technology for olefin polymerization, applied in the application field of preparing an olefin polymerization catalyst, and can solve the problems of unsatisfactory catalyst activity and the like

Active Publication Date: 2007-04-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polypropylene resin obtained by using this catalyst has high isotacticity, but the catalyst activity is not satisfactory

Method used

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  • Solid catalyst composition used for olefine polymerization and catalyst thereof
  • Solid catalyst composition used for olefine polymerization and catalyst thereof
  • Solid catalyst composition used for olefine polymerization and catalyst thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The preparation of the composite carrier is the same as in Comparative Example 1. The only difference from Comparative Example 1 in the catalyst preparation process is that 0.25 mL of 4-ethyl-3,5-heptanediol dibenzoate and 0.75 mL of di-n-butyl phthalate were added at the same time for electron donation body. Propylene polymerization process is with embodiment 1.

[0076] See Table 1 for the composition of the homogeneous catalyst and some physical parameter tests, and see Table 2 for the test results of the catalyst activity and the performance data of the obtained polypropylene resin.

Embodiment 2

[0078] The preparation of the composite carrier is the same as in Comparative Example 1. During catalyst preparation, the only difference from Comparative Example 1 was the addition of 0.50 mL of 4-ethyl-3,5-heptanediol dibenzoate and 0.50 mL of di-n-butyl phthalate to give electronic body. Propylene polymerization process is with embodiment 1.

[0079] The composition of the solid catalyst and some physical parameter tests are shown in Table 1, and the test results of the catalyst activity and the performance data of the obtained polypropylene resin are shown in Table 2.

Embodiment 3

[0081] The preparation of the composite carrier is the same as in Comparative Example 1. During the preparation of the catalyst, the only difference from Comparative Example 1 was the use of 0.75 mL of 4-ethyl-3,5-heptanediol dibenzoate mixed with 0.25 mL of di-n-butyl phthalate electronic body. Propylene polymerization process is with embodiment 1.

[0082] The composition of the solid catalyst and some physical parameter tests are shown in Table 1, and the test results of the catalyst activity and the performance data of the obtained polypropylene resin are shown in Table 2.

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Abstract

This invention provides a solid catalyst composition used for alkenes polymerization and its catalyst, this catalyst composition contains following composition's reaction product: the Composite carrying agent is produced by spray drying halogenated magnesium and gel silica, at least one diatomic alcohol esters compound and at least one compound selected from bibasic aliphatic carboxylic acid esters or aromatic series carboxylic ester, and halogenated Titanium compound.When two Internal electronic compounds of stated catalyst is used by matching, it is not only ensured to be high activity of prepared catalyst, but also ensured that prepared polymer possess good tacticity.

Description

technical field [0001] The present invention relates to a solid catalyst component for olefin polymerization and its catalyst, more specifically to a catalyst prepared by using a composite carrier and a composite internal electron donor prepared by spray drying magnesium halide and silica gel and its catalyst Application in the preparation of olefin polymerization catalysts. technical background [0002] As is well known, Ziegler-Natta catalysts used for olefin polymerization, especially α-olefin polymerization with three or more carbon atoms, generally include two parts: a main catalyst and a co-catalyst. The main catalyst is mostly composed of MgCl 2 Support, titanium compound (usually TiCl 4 ) reacts with an internal electron donor. It is generally believed in the industry that MgCl 2 The support acts as a skeleton, and the shape of the support directly determines the shape of the catalyst and the obtained olefin polymer particles. TiCl 4 play the role of forming th...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F4/02C08F4/645
Inventor 陈伟赵峰王洪涛姜涛李昌秀刘东兵郑刚覃雪
Owner CHINA PETROLEUM & CHEM CORP
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