Porous molybdenum trioxide as well as preparation method, hydrogenation catalyst and dehydrogenation catalyst thereof

A dehydrogenation catalyst, hydrogenation catalyst technology, applied in the direction of molybdenum oxide/molybdenum hydroxide, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the complex preparation process of molybdenum trioxide, Inability to mass production and other problems, to achieve the effect of good repeatability and simple process

Active Publication Date: 2015-01-28
杭州聚力氢能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a porous molybdenum trioxide and its preparation method, a hydrogenation catalyst and a dehydrogenation catalyst to solve the problems in the prior art that the preparation process of molybdenum trioxide is complicated and cannot be produced on a large scale

Method used

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  • Porous molybdenum trioxide as well as preparation method, hydrogenation catalyst and dehydrogenation catalyst thereof
  • Porous molybdenum trioxide as well as preparation method, hydrogenation catalyst and dehydrogenation catalyst thereof
  • Porous molybdenum trioxide as well as preparation method, hydrogenation catalyst and dehydrogenation catalyst thereof

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[0026] As introduced in the background technology section, the preparation of molybdenum trioxide in the prior art has the problems of complicated process and incapable of large-scale production. In order to solve this problem, the present invention provides a method for preparing porous molybdenum trioxide, which includes the following steps: S1, preparing an aqueous solution containing molybdenum soluble acid and / or molybdenum soluble salt; S2, adding three-dimensional A template material with a cubic mesoporous structure to obtain a mixture; S3, drying and calcining the mixture to obtain a calcined product; and S4, removing the template material in the calcined product to obtain porous molybdenum trioxide.

[0027] In the above preparation method provided by the present invention, the template material having a three-dimensional cubic mesoporous structure can absorb molybdenum-containing soluble acid and / or molybdenum-containing soluble salt in three-dimensional cubic mesopo...

Embodiment 1 to Embodiment 13

[0053] Example 1 to Example 13 prepared porous molybdenum trioxide

Embodiment 1

[0055] Get 10g of molybdic acid and dissolve it in 30ml of distilled water, add 10g of SBA-16 (the specific surface area is 1000m 2 / g, the pore volume is 0.9cm 3 / g, pore diameter is 10nm) and fully mixed and stirred to obtain the mixture; the mixture was dried, then heated to 400°C for calcination in a muffle furnace (the heating rate was 5°C / min), and after cooling to room temperature, the calcined product was obtained; The template material is removed by hydrofluoric acid aqueous solution with a mass concentration of 2%, and then centrifuged and washed several times with distilled water, and dried to obtain porous molybdenum trioxide.

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Abstract

The invention discloses porous molybdenum trioxide as well as a preparation method, a hydrogenation catalyst and a dehydrogenation catalyst thereof. The preparation method of the porous molybdenum trioxide comprises the following steps: S1, preparing an aqueous solution of molybdenum-containing soluble acid and / or molybdenum-containing soluble salt; S2, adding a template material with a three-dimensional cubic meso-porous structure in the aqueous solution to acquire a mixture; S3, drying and calcining the mixture to acquire a calcined product; and S4, removing the template material in the calcined product to acquire the porous molybdenum trioxide. According to the preparation method disclosed by the invention, with adoption of the template material with the three-dimensional cubic meso-porous structure, the molybdenum-containing soluble acid and / or the molybdenum-containing soluble salt are adsorbed in three-dimensional cubic meso pores, and the porous molybdenum trioxide with a complementary structure of the template material pore structure can be acquired by virtue of subsequent treatment on the mixture.

Description

technical field [0001] The invention relates to the field of preparation and application of porous materials, in particular to a porous molybdenum trioxide, a preparation method thereof, a hydrogenation catalyst and a dehydrogenation catalyst. Background technique [0002] Porous materials can be divided into microporous materials (<2nm), mesoporous materials (2-50nm) and macroporous materials (>50nm) according to the pore size. Typical porous materials include microporous ZSM-5, mesoporous MCM-41, MCM-48, SBA-15 and macroporous ceramics. Since porous materials can be used not only as adsorbents, but also as catalyst supports or catalyst materials, they are widely used in gas separation, pressure swing adsorption, catalytic cracking, aromatics isomerization, catalytic hydrodehydrogenation, solid acid catalysis, photochromism and electrochemistry. It has been widely used in fields such as chromism, and has also been applied in many fields such as chemical industry, met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/02B01J35/10B01J23/28B01J23/652B01J27/22B01J27/24C07C5/03C07C5/10C07C29/141C07C29/145C07D209/86
CPCB01J23/28B01J23/6525B01J27/22B01J27/24B01J35/10C01G39/02C07C5/03C07C5/10C07C29/141C07C29/145C07D209/86C07C31/10
Inventor 程寒松费顺鑫黄亮潘其云裴礼镔梅攀
Owner 杭州聚力氢能科技有限公司
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