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Composite for organic metal catalyst and preparation method thereof

An organometallic and composite technology, applied in the field of denitrification catalysts, to achieve the effects of reduced volume, improved catalytic oxidation activity, and enhanced adhesion

Inactive Publication Date: 2019-01-11
广州优润合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a composite for organometallic catalysts and a preparation method thereof, the composite uses cross-linked modified carbon nanotubes to V 2 o 5 -MoO 3 / TiO 2 For loading, attapulgite is used to coat platinum metal to improve the catalytic oxidation activity of platinum metal. The common organometallic catalyst di-n-octyltin dilaurate is used as heat stabilizer and prepared with various fillers and additives. The preparation method is simple , large specific surface area, good thermal stability, good activity and selectivity, long-term use will not cause alkali metal poisoning, sintering, blockage, erosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A compound for organometallic catalysts, comprising the following raw materials in parts by weight: carbon nanotube supported V 2 o 5 -MoO 3 / TiO 2 42 parts, 8 parts of Pt metal coated with attapulgite, 5 parts of di-n-octyl tin dilaurate, 4 parts of anatase titanium dioxide, 3 parts of ceramic fiber, 1 part of binder, 1.2 parts of citric acid, alkylphenol poly 0.6 parts of oxyethylene ether, 0.2 parts of boron nitride; wherein, the TiO in the anatase titanium dioxide 2 The content is less than 98.5%, and the volatile matter weight is less than 2.0% when heated to 500°C. The binder is prepared by mixing polyurethane, diatomaceous earth and zinc stearate in a mass ratio of 10:3:1.

[0034] The carbon nanotube loaded V 2 o 5 -MoO 3 / TiO 2 The preparation method comprises the following steps:

[0035] 1) Carbon nanotube modification treatment: impregnate 2-6 parts by weight of carbon nanotubes into 12-23 parts by weight of organic zirconium crosslinking agent, sti...

Embodiment 2

[0047] A compound for organometallic catalysts, comprising the following raw materials in parts by weight: carbon nanotube supported V 2 o 5 -MoO 3 / TiO 2 39 parts, 10 parts of Pt metal coated with attapulgite, 7 parts of di-n-octyl tin dilaurate, 5 parts of anatase titanium dioxide, 4 parts of ceramic fiber, 2 parts of binder, 1.3 parts of citric acid, fatty alcohol polyoxygen 0.6 parts of vinyl ether, 0.3 parts of boron nitride; wherein, the TiO in the anatase titanium dioxide 2 The content is less than 98.5%, and the volatile matter weight is less than 2.0% when heated to 500°C. The binder is prepared by mixing polyurethane, diatomaceous earth and zinc stearate in a mass ratio of 10:3:1.

[0048] The carbon nanotube loaded V 2 o 5 -MoO 3 / TiO 2 The preparation method is the same as in Example 1.

[0049] The preparation method of the attapulgite-coated Pt metal is the same as that in Example 1.

[0050] The preparation method of the compound for organometallic cat...

Embodiment 3

[0052] A compound for organometallic catalysts, comprising the following raw materials in parts by weight: carbon nanotube supported V 2 o 5 -MoO 3 / TiO 2 48 parts, 11 parts of attapulgite-coated Pt metal, 7 parts of di-n-octyltin dilaurate, 6 parts of anatase titanium dioxide, 5 parts of ceramic fiber, 2 parts of binder, 1.3 parts of citric acid, fatty alcohol polyoxygen 0.7 parts of vinyl ether, 0.3 parts of boron nitride; wherein, the TiO in the anatase titanium dioxide 2The content is less than 98.5%, and the volatile matter weight is less than 2.0% when heated to 500°C. The binder is prepared by mixing polyurethane, diatomaceous earth and zinc stearate in a mass ratio of 10:3:1.

[0053] The carbon nanotube loaded V 2 o 5 -MoO 3 / TiO 2 The preparation method is the same as in Example 1.

[0054] The preparation method of the attapulgite-coated Pt metal is the same as that in Example 1.

[0055] The preparation method of the compound for organometallic catalyst i...

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Abstract

The invention discloses a composite for an organic metal catalyst and a preparation method thereof, and relates to the technical field of denitrification catalyst. The composite adopts cross-linked modified carbon nanotubes for being loaded with V2O5-MoO3 / TiO2 having good catalytic oxidation denitrification performance, adopts attapulgite to wrap platinum metal so as to improve the catalytic oxidation activity of the platinum metal, and is prepared from a common organic metal catalyst dioctyl tin dilaurate as a heat stabilizer with a variety of fillers and additives. The preparation method issimple. The composite for the organic metal catalyst has the advantages of large specific surface area, good thermal stability, and good activity and selectivity, and cannot cause alkali metal poisoning, sintering, blockage and erosion phenomena after long-term use.

Description

technical field [0001] The invention belongs to the technical field of denitrification catalysts, and in particular relates to a compound used for organometallic catalysts and a preparation method thereof. Background technique [0002] As the foundation of the modern chemical industry, catalytic technology is increasingly widely and deeply infiltrated in industries such as petroleum refining, chemistry, polymer materials, medicine, and environmental protection industries, playing a pivotal role. For a long time, the traditional catalysts used in industry often have disadvantages such as low activity and poor selectivity, require harsh reaction conditions such as high temperature and high pressure, and have high energy consumption, low efficiency and large pollution. Among them, organometallic catalysts have good adsorption and catalytic effects, and have been widely studied and promoted. [0003] As coal-fired denitrification in thermal power plants has become the top prior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01J37/08B01D53/86B01D53/50B01D53/56B01D53/88
CPCB01D53/8609B01D53/8628B01D53/88B01D2258/0283B01J23/002B01J31/38B01J37/0018B01J2523/00B01J2531/42B01J2531/48B01J2523/47B01J2523/55B01J2523/68
Inventor 王泽永
Owner 广州优润合成材料有限公司
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