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Method for preparing Hopcalite catalyst

A technology of catalysts and composite oxides, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxides/metal hydroxide catalysts, etc., can solve problems such as conditional influence, time-consuming, and complexity, and achieve Improve efficiency, reduce reaction time, and improve catalytic performance

Inactive Publication Date: 2020-06-12
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems existing in the preparation of Hopcalite catalysts such as complex influence, long time consumption, and unstable products obtained, and realize faster and lower-cost preparation conditions

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] Mix 1g~5g potassium permanganate, 2g~5g manganese sulfate and 50g water evenly, react in the open system of microwave reactor, the microwave power is 10~300W, and the reaction time is 10min; after the reaction is completed, cool to room temperature, add 3g of copper salt and 5g of precipitating agent were reacted for 30min, washed, dried at 60°C, and calcined at 300°C for 3h to obtain copper-manganese composite oxide.

Embodiment 2

[0023] Mix 1g~5g potassium permanganate, 2g~5g manganese sulfate and 50g water evenly, react in the open system of microwave reactor, the microwave power is 100W, and the reaction time is 1~60min; after the reaction, cool to room temperature, add 3g of copper salt and 5g of precipitating agent were reacted for 30min, washed, dried at 60°C, and calcined at 300°C for 3h to obtain copper-manganese composite oxide.

Embodiment 3

[0025] Mix 1g~5g potassium permanganate, 2g~5g manganese sulfate and 50g water evenly, react in the open system of microwave reactor, the microwave power is 10~300W, and the reaction time is 10min; after the reaction is completed, cool to room temperature, add 3-5g of copper salt and 3-8g of precipitating agent are reacted for 30 minutes, washed, dried at 60°C, and then calcined at 300°C for 3h to obtain copper-manganese composite oxide.

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Abstract

The invention discloses a method for preparing a Hopcalite catalyst, belongs to the field of inorganic material preparation, and particularly relates to a method for preparing the Hopcalite catalyst with the assistance of a microwave reactor. The method is characterized in that a microwave-assisted reactor opening system is used for carrying out an oxidation-reduction reaction. A reducing agent and an oxidant in a ratio (mol / mol) of 1-5 are mixed with water; under the open normal pressure condition, constant microwave power, generally 10-300 W, is kept, reaction is conducted for a period of time, generally, the reaction time is shorter than 60 min, obtained precipitates are washed, dried and calcined to obtain copper-manganese composite oxide, the calcination temperature is generally 200-900 DEG C, and generally, the calcination time is shorter than 9 h. The method is simple in process, the reaction time is shortened from 12 hours to 30 minutes, the reaction time is greatly shortened,and the method has popularization value.

Description

[0001] field of invention [0002] The invention relates to a method for preparing Hopcalite catalyst, in particular to a microwave-assisted method for preparing Hopcalite catalyst. Background technique [0003] Hopcalite catalyst is a copper-manganese composite oxide composed of CuO and MnO2. It is a high-efficiency catalytic carbon monoxide product with good performance, wide application and market demand. It has a good catalytic effect on carbon monoxide at normal temperature and pressure, and has the advantages of simple synthesis, mild conditions, and low-cost industrial synthesis. At the same time, in fuel cell research, the hydrogen-rich gas produced by partial oxidation of low-carbon alcohols and hydrocarbons or steam reforming often contains about 0.5-3% (mol) of CO, while carbon monoxide will compete with hydrogen and react with oxygen, reducing Battery charge and discharge efficiency. Therefore, realizing the oxidative conversion of CO at lower temperature is an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889
CPCB01J23/8892
Inventor 裴振昭
Owner HEBEI UNIV OF ENG
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