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Supported efficient hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and supported technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. High, reduce catalyst activity and other issues, to achieve the effect of avoiding the aggregation of active components, excellent catalytic hydrogenation performance, and improving catalytic activity

Active Publication Date: 2018-12-07
嘉兴迪迈科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the hydrogenation catalyst is prepared by the conventional impregnation method, the activity of the catalyst is often not high due to the use of common inorganic oxides as the carrier. together, thereby reducing the activity of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A supported high-efficiency hydrogenation catalyst, comprising the following raw materials in parts by weight: 15 parts of pretreatment carrier, 4 parts of metal precursor, and 14 parts of deionized water;

[0029] Wherein, the metal precursor is nickel nitrate hexahydrate; the preparation method of the pretreatment carrier is to weigh an appropriate amount of sodium-based montmorillonite and crush to 400 mesh, and then add 8 times the volume of sulfuric acid with a concentration of 0.15 mol / L The solution is mixed uniformly, and then sent to an ultrasonic microwave combined reactor for ultrasonic and microwave combined treatment at 78°C for 20 minutes, and then centrifuged at a rate of 3000 r / min for 15 minutes, and the supernatant is removed and vacuum dried at 60°C for 48 hours. The pretreatment carrier; the combined ultrasonic and microwave processing conditions are: the ultrasonic frequency is 30kHz, the ultrasonic power is 50W, the microwave frequency is 1000MHz, and ...

Embodiment 2

[0040] A supported high-efficiency hydrogenation catalyst includes the following raw materials in parts by weight: 20 parts of pretreatment carrier, 7 parts of metal precursor, and 24 parts of deionized water;

[0041] Wherein, the metal precursor is nickel nitrate hexahydrate; the preparation method of the pretreatment carrier is to weigh an appropriate amount of sodium-based montmorillonite and crush to 400 mesh, and then add 8 times the volume of sulfuric acid with a concentration of 0.15 mol / L The solution is mixed uniformly, and then sent to an ultrasonic microwave combined reactor for ultrasonic and microwave combined treatment at 78°C for 20 minutes, and then centrifuged at a rate of 3000 r / min for 15 minutes, and the supernatant is removed and vacuum dried at 60°C for 48 hours. The pretreatment carrier; the combined ultrasonic and microwave processing conditions are: ultrasonic frequency is 30kHz, ultrasonic power is 70W, microwave frequency is 1000MHz, and microwave power...

Embodiment 3

[0052] A supported high-efficiency hydrogenation catalyst, comprising the following raw materials in parts by weight: 17.5 parts of pretreatment carrier, 5.5 parts of metal precursor, and 19 parts of deionized water;

[0053] Wherein, the metal precursor is nickel nitrate hexahydrate; the preparation method of the pretreatment carrier is to weigh an appropriate amount of sodium-based montmorillonite and crush to 400 mesh, and then add 8 times the volume of sulfuric acid with a concentration of 0.15 mol / L The solution is mixed uniformly, and then sent to an ultrasonic microwave combined reactor for ultrasonic and microwave combined treatment at 78°C for 20 minutes, and then centrifuged at a rate of 3000 r / min for 15 minutes, and the supernatant is removed and vacuum dried at 60°C for 48 hours. The pretreatment carrier; the combined ultrasonic and microwave processing conditions are: the ultrasonic frequency is 30kHz, the ultrasonic power is 60W, the microwave frequency is 1000MHz, ...

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PUM

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Abstract

The invention discloses a supported efficient hydrogenation catalyst which contains the following materials in parts by weight: 15-20 parts of pretreatment carrier, 4-7 parts of metal precursor, and 14-24 parts of deionized water, wherein the pretreatment carrier is prepared by performing acid treatment on Na-montmorillonite and assisting with an ultrasound microwave combined effect. The inventionalso discloses a preparation method of the catalyst. The catalyst prepared according to the invention has excellent catalytic hydrogenation performance, the supporting capacity of the metal precursorcan be increased by the pretreatment carrier, and meanwhile, an acid site used for promoting the catalytic performance is introduced, and by mutual match of vacuum impregnation and heat preservationunder protection of a hydrogen atmosphere, clustering of active components is effectively avoided, so as to be beneficial to improvement of the activity of the catalyst; and the catalyst can be used for catalytic hydrogeneration reaction, and is wide in market prospect.

Description

Technical field [0001] The invention relates to the field of chemical engineering, in particular to a supported high-efficiency hydrogenation catalyst and a preparation method thereof. Background technique [0002] With the continuous development of society and the continuous progress of chemical technology, more and more catalysts are used in chemical production, making important contributions to the development and progress of society. Among them, the hydrogenation catalyst is a catalyst used in the addition of a compound to hydrogen. It is widely used in the fields of medicine, pesticides, cosmetics and toiletry products, adhesives, oil field chemicals, synthetic lubricants, and automotive chemicals. Applications. [0003] Hydrogenation catalysts are usually prepared by the impregnation method. Because of their simple preparation method and low price, the supported catalyst is formed by impregnating the active components on the porous support in the form of salt solution and pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72B01J23/75B01J23/755B01J23/10B01J37/02B01J37/34B01J37/08C07C1/12C07C9/04
CPCB01J23/10B01J23/72B01J23/75B01J23/755B01J37/0201B01J37/08B01J37/346C07C1/12C07C9/04
Inventor 邹军南青霞
Owner 嘉兴迪迈科技有限公司
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