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[Chemical Knowledge]：Production and manufacturing method and process flow of hydrogen peroxide

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Hydrogen peroxide (H2O2) is an important raw material for chemical production, which is widely used in bleaching, oxidation, disinfection and other fields. This paper will introduce the manufacturing methods of hydrogen peroxide, including electrolysis method, anthraquinone method, hydrogen and oxygen direct method.

1. electrolysis

electrolysis is a method of producing hydrogen peroxide by electrolyzing salt water. The method uses salt as a raw material to separate hydrogen ions and oxygen ions in water by electrolysis to generate hydrogen and oxygen. Oxygen is then introduced into the electrolyte to react with water to form hydrogen peroxide. The advantages of

electrolysis method to produce hydrogen peroxide are simple process and convenient operation, but the disadvantage is high energy consumption, and a large amount of salt and water resources are needed.

2. anthraquinone method

anthraquinone method is the most widely used hydrogen peroxide manufacturing method at home and abroad. The method uses anthraquinone as the working carrier, which is introduced into acidic solution together with hydrogen to reduce anthraquinone to hydroanthraquinone. Oxygen is then introduced into the solution to oxidize the hydroanthraquinone to produce anthraquinone and hydrogen peroxide.
The advantages of
anthraquinone method to produce hydrogen peroxide are that the production process is safe and reliable, the product quality is stable, and the automatic production can be realized. The disadvantage is that a large amount of organic solvents need to be used, which has a certain impact on the environment.

3. hydrogen and oxygen direct

hydrogen and oxygen direct method is a direct combination of hydrogen and oxygen to produce hydrogen peroxide. In this method, hydrogen and oxygen are mixed in a certain proportion, and then introduced into the catalyst bed, and a chemical reaction occurs under the action of the catalyst to generate hydrogen peroxide. The advantages of

direct hydrogen-oxygen method are simple process, high efficiency, and no need to use a large amount of organic solvents and water resources. The disadvantage is that the price of the catalyst is high, and the reaction conditions and operation process need to be strictly controlled to ensure safe production.

4. other methods

In addition to the above methods, there are some other methods of making hydrogen peroxide, such as photolytic method, biological method, etc. These methods have their own advantages and disadvantages, and are suitable for different production occasions and needs.

In summary, there are many manufacturing methods for hydrogen peroxide, and the advantages and disadvantages of different methods are suitable for different production occasions and needs. In actual production, the appropriate manufacturing method should be selected according to the specific situation to ensure product quality and production efficiency.

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