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Preparing method of Co-Zn catalyst

A catalyst, co-zn technology, applied in the field of preparation of Co-Zn catalysts, can solve the problems of insufficient stability, affecting the effect of production and application, etc., and achieve the effects of improving stability, good effect and uniform distribution

Inactive Publication Date: 2018-02-02
成都欣华源科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to statistics, catalysts are used in more than 90% of industrial processes, such as chemical, petrochemical, biochemical, environmental protection, etc., but non-precious metal catalysts are often not stable enough, which will affect the effect of production and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: a kind of preparation method of Co-Zn catalyst comprises steps:

[0014] (1) Add the nitrate solution of Co and Zn to the container, stir and mix at a constant speed under vacuum conditions, add the precipitant dropwise while stirring and mixing, continue to stir for 10 minutes after the dropwise addition, add a certain amount of NaOH solution, statically Set aside for 6 hours to adjust the mixture;

[0015] (2) Suction filter the adjusted mixture with a vacuum pump, wash the obtained filtrate three times with water and absolute ethanol respectively, put it in an oven and heat it at 130°C for 6 hours, then cool it to room temperature, and wash it with deionized water for 1 hour times, centrifuged again, and vacuum-dried to obtain the Co-Zn catalyst.

[0016] In parts by weight, Co nitrate solution: Zn nitrate solution=1:2.

[0017] The precipitant is N 2 h 4 ·H 2 O.

Embodiment 2

[0018] Embodiment 2: a kind of preparation method of Co-Zn catalyst comprises steps:

[0019] (1) Add the nitrate solution of Co and Zn to the container, stir and mix at a constant speed under vacuum conditions, add the precipitant dropwise while stirring and mixing, continue to stir for 2 minutes after the dropwise addition, add a certain amount of NaOH solution, statically Set aside for 18 hours to adjust the mixture;

[0020] (2) Suction filter the adjusted mixture with a vacuum pump, wash the obtained filtrate three times with water and absolute ethanol, put it in an oven and heat it at 150°C for 8 hours, then cool it to room temperature, and wash it with deionized water for 1 hour times, centrifuged again, and vacuum-dried to obtain the Co-Zn catalyst.

[0021] In parts by weight, Co nitrate solution: Zn nitrate solution=1:2.

[0022] The precipitant is N 2 h 4 ·H 2 O.

Embodiment 3

[0023] Embodiment 3: a kind of preparation method of Co-Zn catalyst comprises steps:

[0024] (1) Add the nitrate solution of Co and Zn into the container, stir and mix at a constant speed under vacuum conditions, add the precipitant dropwise while stirring and mixing, and continue stirring for 6 minutes after the dropwise addition is completed, add a certain amount of NaOH solution, statically Set aside for 10 hours to adjust the mixture;

[0025] (2) Suction filter the adjusted mixture with a vacuum pump, wash the obtained filtrate three times with water and absolute ethanol respectively, put it in an oven and heat it at 145°C for 7 hours, then cool to room temperature, and wash with deionized water for 1 times, centrifuged again, and vacuum-dried to obtain the Co-Zn catalyst.

[0026] In parts by weight, Co nitrate solution: Zn nitrate solution=1:2.

[0027] The precipitant is N 2 h 4 ·H 2 O.

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PUM

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Abstract

The invention provides a preparation method of Co-Zn catalyst, comprising the steps of: (1) adding a nitrate solution of Co and Zn into a container, stirring and mixing at a uniform speed under vacuum conditions, adding a precipitant dropwise while stirring and mixing, and waiting for After the dropwise addition, continue stirring, add a certain amount of NaOH solution, and let it stand to adjust the mixed solution; (2) The adjusted mixed solution is suction filtered with a vacuum pump, and the obtained filtrate is washed with water and anhydrous ethanol, respectively, and placed in an oven. Heating, then cooling to room temperature, washing with deionized water, centrifugation, and vacuum drying to obtain the Co-Zn catalyst. The invention can effectively improve the stability of the non-precious metal catalyst, make the catalyst particle distribution more uniform, and have better effect.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a preparation method of a Co-Zn catalyst. technical background [0002] Catalyst, as a substance that can speed up chemical reactions, has important and extensive applications in the human production process. Catalysts are used in the production of fertilizers, pesticides, and various chemical raw materials. According to statistics, more than 90% of industrial processes use catalysts, such as chemical, petrochemical, biochemical, environmental protection, etc., but non-precious metal catalysts are often not stable enough, which will affect the effect of production and application. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a preparation method of a Co-Zn catalyst, which can effectively improve the stability of the non-precious metal catalyst, make the particle distribution of the catalyst more uniform and the effect bett...

Claims

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Application Information

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IPC IPC(8): B01J23/80
CPCB01J23/80B01J37/031B01J37/08
Inventor 陈华
Owner 成都欣华源科技有限责任公司