A kind of preparation method of titanium catalyst component and its titanium catalyst component, and a kind of preparation method of titanium catalyst and its titanium catalyst

A technology of titanium catalyst and titanium compound, which is applied in the field of preparation of titanium catalyst components, can solve the problems of unsatisfactory shape of catalytically active polymerization products and lower performance of final products in copolymer resins, and achieve high bulk density and high catalytic performance. active effect

Inactive Publication Date: 2011-12-07
SUD CHEM IP GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the catalytic activity of the catalyst and the shape of the polymerized product are still unsatisfactory
And when these catalysts are applied to the copolymerization of ethylene and higher order α-olefins (e.g. 1-hexene), the obtained polymer still has a high level of n-hexene extractables, reducing the properties of the final product in the copolymer resin

Method used

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  • A kind of preparation method of titanium catalyst component and its titanium catalyst component, and a kind of preparation method of titanium catalyst and its titanium catalyst
  • A kind of preparation method of titanium catalyst component and its titanium catalyst component, and a kind of preparation method of titanium catalyst and its titanium catalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] 4.76 g (50 mmol) of anhydrous magnesium chloride, 75 ml of decane and 16.3 g (125 mmol) of isooctyl alcohol were heated to 130° C. and allowed to react for 3 hours to obtain a homogeneous solution. To this solution was added 15 mmol of tributyl borate and stirred at 50° C. for 2 hours to dissolve tributyl borate in the solution. All the homogeneous solution obtained above was cooled to room temperature, and then added dropwise to 150 ml of titanium tetrachloride maintained at 0°C within 1 hour while stirring. After completion of the dropwise addition, the temperature of the mixture was maintained at 0°C for 1 hour, then raised to 120°C over 2 hours with stirring, and maintained at this temperature for 2 hours. After 2 hours of reaction, the resulting solid was separated by hot filtration. The solid catalyst is fully washed with hexane and decane respectively until no precipitated titanium compound can be detected in the cleaning liquid, and a solid titanium catalyst co...

Embodiment 2

[0092] 4.76 g (50 mmol) of anhydrous magnesium chloride, 75 ml of decane and 16.3 g (125 mmol) of isooctyl alcohol were heated to 130° C. and allowed to react for 3 hours to obtain a homogeneous solution. To the solution, 15 mmol of phenylenediethyl borate was added and stirred at 50° C. for 2 hours to dissolve the phenylenediethyl borate in the solution. All the homogeneous solution obtained above was cooled to room temperature, and then added dropwise to 150 ml of titanium tetrachloride maintained at 0°C within 1 hour while stirring. After completion of the dropwise addition, the temperature of the mixture was maintained at 0°C for 1 hour, then raised to 120°C over 2 hours with stirring, and maintained at this temperature for 2 hours. After 2 hours of reaction, the resulting solid was separated by hot filtration. The solid catalyst is fully washed with hexane and decane respectively until no precipitated titanium compound can be detected in the cleaning liquid, and a solid ...

Embodiment 3

[0096] The method of embodiment 3 is the same as that of embodiment 1, except that: 20 mmol of tributyl borate is added. The aggregation results are shown in Table 1.

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Abstract

The present invention relates to a method for preparing a titanium catalyst component, comprising the steps: reacting a magnesium halide in a solvent including an alcohol to obtain a homogeneous solution, reacting at least one organic boron compound with the homogeneous solution, reacting a titanium compound with the homogeneous solution, a titanium catalyst component obtainable by said method, a method for preparing a titanium catalyst and a titanium catalyst obtainable by said method.

Description

technical field [0001] The invention relates to a preparation method of a titanium catalyst component and the titanium catalyst component thereof; a preparation method of the titanium catalyst and the titanium catalyst thereof. [0002] The titanium catalyst based on the titanium catalyst component according to the present invention can be used for ethylene polymerization and copolymerization, providing a kind of high catalytic activity, the obtained polymer has high bulk density, narrow particle size distribution and less fine powder content catalyst. Background technique [0003] In recent years, the research on olefin polymerization catalysts has always been a hot topic in the field of polyolefin research. It is the goal pursued by researchers to develop polyolefin catalysts with high catalytic activity, good hydrogen adjustment sensitivity, uniform particle size distribution and less fine powder. [0004] The literature reports many processes using magnesium-containing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F4/657
CPCC08F10/00C08F110/02C08F4/6574C08F2500/12C08F2500/18C08F2500/24
Inventor 郭琦姜勇
Owner SUD CHEM IP GMBH & CO KG
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