Component and preparation method of alkoxy magnesium particle

A technology of magnesium oxide and particles is applied in the field of components of spherical magnesium alkoxide particles, which can solve the problems of high cost, low bulk density, uneven large particles or fine powder, etc., and achieves reduction of production cost and particle sphericity. Good, narrow particle size distribution effect

Active Publication Date: 2018-06-29
为信(深圳)材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, there are various methods for preparing alkoxymagnesium in published technical literature reports, mainly containing the following categories: a kind of method disclosed in Japanese Patent Laying-Open 03-74341, 04-368391 in the presence of iodine, metal Magnesium reacts with alcohol to obtain spherical or ellipsoidal diethoxymagnesium. However, this method is difficult to control a suitable reaction rate, and the resulting product will inevitably produce uneven large particles or fine powders, and the general bulk density is relatively high. Low; the other is the spray-drying process of the di

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  • Component and preparation method of alkoxy magnesium particle
  • Component and preparation method of alkoxy magnesium particle

Examples

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Example Embodiment

[0027] Example 1

[0028] Fully replace the reactor with high-purity nitrogen, add 0.1 g of Viscoplex 1-156 (acrylate polymer content 40-44% wt), 20 ml of absolute ethanol and 0.1 g of iodine under the protection of nitrogen, stir to dissolve and raise the temperature, add 80 -150 mesh magnesium powder 1.0 g and 10 ml absolute ethanol, maintain reflux reaction, add 80-150 mesh magnesium powder 1.0 g and 10 ml absolute ethanol again at 20 minutes intervals, add 4.0 g magnesium powder and 55 ml in 4 times Anhydrous ethanol, keep refluxing reaction for 4 hours after adding the material, and then wash twice with anhydrous ethanol, the amount of anhydrous ethanol is 80ml each time, and then wash twice with hexane, the amount of hexane each time is 100 Ml, after washing is completed, dry to obtain off-white solid flowable powder, the specific results are shown in Table 1.

Example Embodiment

[0029] Example 2

[0030] The difference between this example and Example 1 is only: the "0.1 g Viscoplex 1-156 (acrylate polymer content 40-44% wt)" in Example 1 is adjusted to "0.5 g Viscoplex 1-156 (acrylate polymer Content 40-44%wt)".

Example Embodiment

[0031] Example 3

[0032] The difference between this embodiment and the embodiment 1 is only: the "0.1 g of iodine" in the embodiment 1 is adjusted to "0.4 g of iodine".

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Abstract

The invention discloses a component and a preparation method of a spherical alkoxy magnesium particle. A certain amount of an acrylic polymer is introduced to an alcohol or mixed alcohol compound, andcontacts and reacts with metallic magnesium powder to prepare alkoxy magnesium; and the obtained alkoxy magnesium particle has the advantages of complete form, high sphericility, high bulk density, uniformity and narrow particle size distribution. The alkoxy magnesium particle can be used for preparing an olefin polymerization catalyst.

Description

technical field [0001] The invention relates to the field of preparation of alkoxymagnesium, in particular to a component of spherical alkoxymagnesium particles and a method for preparing spherical alkoxymagnesium particles using the component. Background technique [0002] As we all know, with the development of the economy, people's demand for polyolefin materials is getting higher and higher. High-efficiency polyolefin catalysts for the production of polyolefin materials have gained great popularity in the field of polyolefin catalysts due to their well-controlled particle morphology and microstructure. Wide range of applications. The composition and microstructure of the carrier play a key role, and the carriers obtained by different methods correspond to the catalysts with different structures and properties. [0003] In many patent documents, it is disclosed that alkoxymagnesium is used as the carrier of high-performance catalysts, and the catalysts prepared by alkoxy...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F110/06C08F4/02
CPCC08F4/02C08F10/00C08F110/06
Inventor 李凌云
Owner 为信(深圳)材料科技有限公司
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