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Catalyst component applied to olefin polymerization, preparation method thereof, catalyst for olefin polymerization and application of catalyst

A technology for olefin polymerization and catalysts, which is applied in the field of olefin polymerization catalysts and can solve problems such as poor stereospecificity

Inactive Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is in order to overcome the poor defect of stereospecific ability of the catalyst of internal electron donor with diol carboxylate, and provide a kind of stereospecific ability higher, and does not contain Catalyst component for olefin polymerization of phthalates

Method used

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  • Catalyst component applied to olefin polymerization, preparation method thereof, catalyst for olefin polymerization and application of catalyst

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preparation example Construction

[0033] According to the present invention, the magnesium source can be various magnesium-containing compounds that can be used as catalysts for olefin polymerization, for example, the magnesium source can be magnesium halide, magnesium alcoholate or haloalcoholate, magnesium halide adduct carrier etc. The magnesium halide can be, for example, magnesium chloride and / or magnesium bromide; the magnesium alcoholate, for example, can be diethoxymagnesium; the magnesium halide alcoholate, for example, can be ethoxymagnesium chloride; The type of magnesium halide adduct carrier is known to those skilled in the art, for example, the magnesium halide adduct carrier disclosed in patents such as CN1091748A, CN101050245A, CN101486722A, 201110142357.X, 201110142156.X and 201110142024.7, and these patents disclosed The relevant content is fully incorporated in this application by reference. The specific preparation method of the magnesium halide adduct carrier may include the following ste...

Embodiment 1

[0052] This example is used to illustrate the catalyst component for olefin polymerization and its preparation method, the catalyst for olefin polymerization and its application provided by the present invention.

[0053] (1) Preparation of catalyst components for olefin polymerization:

[0054] In a 300ml glass reaction bottle, add 90ml of titanium tetrachloride and cool to -20°C, add 8 grams of magnesium halide carrier (prepared according to the method disclosed in CN1330086A Example 1), then heat up to 110°C, and Add 0.0003 mol of tributyl phosphate and 0.015 mol of 4-ethyl-3,5-heptanediol dibenzoate during the heating process, maintain at 110°C for 30 minutes, filter off the liquid, and then add tetrachloro Titanium dioxide was washed twice, and finally washed five times with hexane, and vacuum-dried to obtain catalyst component C1 for olefin polymerization. Using a grating spectrophotometer, detect the titanium element content in the catalyst component according to spect...

Embodiment 2

[0058] This example is used to illustrate the catalyst component for olefin polymerization and its preparation method, the catalyst for olefin polymerization and its application provided by the present invention.

[0059] Catalyst components for olefin polymerization and propylene polymerization were prepared according to the method in Example 1, except that the amount of hydrogen added during the propylene polymerization was 6.5 L.

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Abstract

The invention provides a catalyst component for olefin polymerization, a preparation method of the catalyst component for the olefin polymerization, the catalyst component for the olefin polymerization prepared by using the method, a catalyst for the olefin polymerization and an application of the catalyst. The catalyst component comprises a product obtained by a reaction of a magnesium source, a titanium source and an internal electron donor, wherein the internal electron donor comprises carboxylic acid diol ester and phosphate. The stereo direction ability of the catalyst component for the olefin polymerization is relatively strong, and high-isotacticity polyolefin can be prepared by using the catalyst component.

Description

technical field [0001] The present invention relates to a catalyst component for olefin polymerization, a method for preparing a catalyst component for olefin polymerization, a catalyst component for olefin polymerization prepared by the method, and a catalyst component for olefin polymerization Catalysts and their applications. Background technique [0002] It is well known that solid titanium-based catalyst components based on magnesium, titanium, halogen and electron donors have high polymerization activity when used in olefin polymerization, especially in propylene polymerization. Among them, the electron donor compound is one of the essential components in the catalyst component, which plays a decisive role in important indicators such as polymerization activity, polymer isotacticity, molecular weight and molecular weight distribution. Development, polyolefin catalysts are constantly updated. [0003] Phthalate ester compounds are currently the most commonly used elec...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F4/649C08F4/645
Inventor 赵瑾夏先知刘月祥谭扬乔素珍彭人琪高富堂凌永泰李威莅张纪贵高平张天一段瑞林
Owner CHINA PETROLEUM & CHEM CORP
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