Spherical mesoporous composite material and supported catalyst and preparation method thereof

A supported catalyst and composite material technology, applied in the field of mesoporous materials, can solve problems such as poor thermal stability and hydrothermal stability, low ethylene polymerization activity, and affect the loading effect, so as to achieve stable mesoporous structure, improve fluidity, Apply handy effects
CN108017731AActive Publication Date: 2018-05-11CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2018-05-11

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Abstract

The invention relates to the field of mesoporous materials, and discloses a spherical mesoporous composite material and a supported catalyst and a preparation method thereof. The spherical mesoporouscomposite material comprises a mesoporous molecular sieve material with a one-dimensional hollow spherical pore structure, and the spherical mesoporous composite material has an average particle sizeof 21 to 29 microns, a specific surface area of 100-650 m<2> / g, and a pore volume of 0.5-1.8 ml / g, and the pore diameter is in trimodal distribution. The spherical mesoporous composite material provided by the invention has the advantages of stable mesoporous structure and uniform particle size distribution, the spherical mesoporous composite material as a catalyst carrier is high in strength andnot easily broken, and the supported polyethylene catalyst prepared from the spherical mesoporous composite material has high catalytic activity when catalyzing ethylene polymerization. A polyethyleneproduct which has a low bulk density and a low melt index and is not easily broken can be obtained.
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Description

technical field

[0001] The invention relates to the field of mesoporous materials, in particular to a spherical mesoporous composite material, a preparation method of the spherical mesoporous composite material, a spherical mesoporous composite material prepared by the method, a supported catalyst, a supported The preparation method of the catalyst, and the supported catalyst prepared by the method. Background technique

[0002] Since 1992, Mobile company synthesized regular mesoporous materials with highly ordered channels. Due to their high specific surface area, regular channel structure and narrow pore size distribution, the application of mesoporous materials in catalysis, separation, medicine and other fields has been obtained. great attention. In 1998, Zhao Dongyuan et al. synthesized a new type of material - mesoporous material SBA-15, which has a highly ordered pore size (6-30nm) and a large pore volume (1.0cm). 3 / g), thicker pore walls (4-6 nm), retained high me...

Claims

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