Preparation method of hydrogen peroxide

hydrogen peroxide

[Alias] hydrogen peroxide

[Physical and chemical properties] Colorless transparent liquid with a density of 1.

[Preparation method] At present, the methods for preparing hydrogen peroxide in industry mainly include the anthraquinone method and the direct hydrogenation method

(1) Anthraquinone method

The anthraquinone method uses alkyl anthraquinone and organic solvents as working liquids, and in the presence of a catalyst, hydrogenation to synthesize onion hydroquinone, and oxidation in pure oxygen or air to obtain hydrogen peroxide

The typical production process is shown in Figure 7-6

Figure 7-6 Production process of hydrogen peroxide prepared by onion quinone method

The onion quinone process has matured, but there is still a lot of room for optimization.

(2) Hydrogen and oxygen direct conversion method

Although most manufacturers currently use the anthraquinone method, this method also has many steps, requires purification, and uses a large amount of solution.

Le-Khac adds a thiolate to the carrier to prevent the reaction of precious metals, thereby increasing the production of hydrogen peroxide

(3) Electrolysis method

Electrolysis is generally carried out under strong acid or alkali conditions.

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