Load type non-metallocene catalyst, preparation method and application thereof

A non-metallocene, supported technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of complex treatment process and high cost of silica gel

Active Publication Date: 2011-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Even so, the ubiquitous problem of the supported non-metallocene catalysts in the prior art is that using silica gel or a composite containing silica gel as the carrier of the non-metallocene catalyst, although it can be be

Method used

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  • Load type non-metallocene catalyst, preparation method and application thereof
  • Load type non-metallocene catalyst, preparation method and application thereof
  • Load type non-metallocene catalyst, preparation method and application thereof

Examples

Experimental program
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Example Embodiment

[0079] According to the present invention, a method for preparing a supported non-metallocene catalyst includes the following steps: dissolving a magnesium compound and a non-metallocene complex in a solvent to obtain a magnesium compound solution; and drying the magnesium compound solution , The step of obtaining the supported non-metallocene catalyst.

[0080] The steps for obtaining the magnesium compound solution will be specifically described below.

[0081] Specifically, the magnesium compound (solid) and the non-metallocene complex are dissolved in an appropriate solvent (that is, a solvent for dissolving the magnesium compound) to obtain the magnesium compound solution.

[0082] As the solvent, for example, C 6-12 Aromatic hydrocarbons, halogenated C 6-12 Solvents such as aromatic hydrocarbons, esters and ethers. Specific examples include toluene, xylene, trimethylbenzene, ethylbenzene, diethylbenzene, chlorotoluene, chloroethylbenzene, bromotoluene, bromoethylbenzene, ethyl...

Example Embodiment

[0205] Example 1

[0206] The magnesium compound is anhydrous magnesium chloride, and the solvent for dissolving the magnesium compound and the non-metallocene complex is tetrahydrofuran. The structure of the non-metallocene complex is compound of.

[0207] Weigh 5 g of anhydrous magnesium chloride and non-metallocene complex, add tetrahydrofuran solvent and completely dissolve at room temperature, stir for 2 hours, and then uniformly heat to 90° C. for direct vacuum drying to obtain a supported non-metallocene catalyst.

[0208] The ratio of magnesium chloride to tetrahydrofuran is 1mol:210ml; the molar ratio of magnesium chloride to non-metallocene complex is 1:0.08.

[0209] The supported non-metallocene catalyst is referred to as CAT-1.

Example Embodiment

[0210] Example 2

[0211] It is basically the same as embodiment 1, but has the following changes:

[0212] Non-metallocene complex use The solvent for dissolving the magnesium compound and the non-metallocene complex was changed to toluene, and the magnesium compound solution was vacuum dried at 100°C.

[0213] The ratio of magnesium compound to toluene is 1mol:150ml; the molar ratio of magnesium compound to non-metallocene complex is 1:0.15.

[0214] The supported non-metallocene catalyst is referred to as CAT-2.

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Abstract

The invention relates to a load type non-metallocene catalyst and a preparation method thereof. The load type non-metallocene catalyst has the characteristics of simple preparation method, flexible and adjustable polymerization activity and the like. The invention also relates to the application of the load type non-metallocene catalyst in olefin homopolymerization/copolymerization. Compared withthe prior art, the application has the characteristic of less cocatalyst amount.

Description

technical field [0001] The present invention relates to a non-metallocene catalyst. Specifically, the present invention relates to a supported non-metallocene catalyst, its preparation method and its application in olefin homopolymerization / copolymerization. Background technique [0002] The non-metallocene catalysts that appeared in the middle and late 1990s, also known as post-metallocene catalysts, the central atoms of the main catalysts include almost all transition metal elements, which have reached or even surpassed metallocene catalysts in some performance aspects, becoming The fourth generation of olefin polymerization catalysts after Ziegler, Ziegler-Natta and metallocene catalysts. The polyolefin product produced by this type of catalyst has excellent performance and low production cost. The coordination atoms of non-metallocene catalysts are oxygen, nitrogen, sulfur and phosphorus, and do not contain cyclopentadiene groups or their derivative groups, such as ind...

Claims

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Application Information

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IPC IPC(8): B01J31/26B01J31/22B01J31/24B01J37/00C08F10/00C08F4/645C08F4/654
Inventor 任鸿平李传峰姚小利郭峰马忠林陈海滨汪开秀刘经伟王亚明
Owner CHINA PETROLEUM & CHEM CORP
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