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Supported non-metallocene catalyst, its preparation method and application

A non-metallocene, supported technology, applied in the field of non-metallocene catalysts, can solve the problems of difficult control of polymer morphology, difficult control of carrier forming process and particle morphology, etc., and achieves the effect of simple preparation method.

Active Publication Date: 2015-11-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of catalyst adopts vacuum drying or solvent precipitation during the carrier forming process, and it is difficult to control the carrier forming process and particle shape, so the shape of the polymer is difficult to control

Method used

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  • Supported non-metallocene catalyst, its preparation method and application
  • Supported non-metallocene catalyst, its preparation method and application
  • Supported non-metallocene catalyst, its preparation method and application

Examples

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preparation example Construction

[0092] The invention relates to a preparation method of a supported non-metallocene catalyst, comprising the following steps: reacting a Grignard reagent with a halogenating reagent to obtain a magnesium-based carrier; making a non-metallocene complex and the magnesium-based carrier in a solvent The step of obtaining the mixed slurry by contacting in the presence of ; and the step of directly drying the mixed slurry to obtain the supported non-metallocene catalyst.

[0093] According to the present invention, magnesium-based supports (also called nascent magnesium halides) are obtained by reacting Grignard reagents with halogenating reagents.

[0094] The Grignard reagent will be specifically described below.

[0095] According to the present invention, as the Grignard reagent, for example, at least one selected from hydrocarbylmagnesium halides with the general formula RMgX and dihydrocarbylmagnesiums with the general formula (R)(R')Mg can be mentioned.

[0096] In the afore...

Embodiment 1

[0249] The Grignard reagent adopts butylmagnesium chloride (BuMgCl), the solvent for dissolving the Grignard reagent adopts tetrahydrofuran, the halogenated reagent adopts chlorobutane, and the non-metallocene complex adopts the structure The compound, the second solvent adopts dichloromethane.

[0250] Add 0.1 mol of the halogenated reagent dropwise to the Grignard reagent solution at room temperature for 30 minutes, and stir for 2 hours at room temperature after the drop is completed. Filter, wash twice with hexane, each time 60 ml of hexane is used, and vacuum dry at room temperature to obtain a magnesium-based carrier.

[0251] Adding the second solvent to the magnesium-based carrier at normal temperature, and then adding the non-metallocene complex, stirring at normal temperature for 2 hours, and drying in vacuum at normal temperature to obtain a supported non-metallocene catalyst.

[0252] Wherein the proportioning is that the proportioning of the Grignard reagent in t...

Embodiment 2

[0255] Basically the same as Example 1, but with the following changes:

[0256] Non-metallocene complexes using The solvent used to dissolve the Grignard reagent was changed to diethyl ether, and the second solvent was changed to toluene.

[0257] Wherein the proportioning is that the proportioning of the Grignard reagent in terms of Mg element and the solvent for dissolving the Grignard reagent is 1mol: 1000mL, and the molar ratio of the Grignard reagent to the halogenated reagent is 1: 2; The molar ratio of the metal complex is 1:0.1, and the ratio of the non-metallocene complex to the second solvent is 0.15 g / ml.

[0258] Supported non-metallocene catalysts are designated CAT-2.

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Abstract

The invention relates to a loaded non-metallocene catalyst and its preparation method. The loaded non-metallocene catalyst has the characteristics of simple and feasible preparation process, controllable non-metallocene component content, and substantial copolymerization effect, etc. The invention also relates to application of the loaded non-metallocene catalyst in olefin homopolymerization / copolymerization. Compared with the prior art, during application, the loaded non-metallocene catalyst has high olefin polymerization catalytic activity, small size and uniform distribution, and the obtained polymer has a high bulk density.

Description

[0001] This application is based on the ongoing research project of "National Eleventh Five-Year Support Program Topics". The project has been highly valued and strongly supported by the Ministry of Science and Technology of the People's Republic of China. Its goal is to form a new generation of polyolefin catalyst technology with independent intellectual property rights, improve the homogeneity of domestic related products, improve the grade of polyolefin varieties in my country, and promote its development. Development in the direction of diversification, serialization, specialization and high performance. technical field [0002] 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 [0003] The non-metallocene catalysts that appeared in the mid-to-late 1990s are also call...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F10/00C08F4/654C08F4/645C08F4/02
Inventor 任鸿平李传峰郭峰阚林柏基业马忠林陈韶辉王亚明杨爱武
Owner CHINA PETROLEUM & CHEM CORP