Common preparation method of lithium hydroxide - electrolysis method

Lithium hydroxide is an important chemical raw material that is increasingly being used in today's society. 

It can be used to prepare high-purity lithium oxide, lithium compounds, and other materials. 

Among them, the most common method is to produce lithium hydroxide by electrolysis. 

Below we will provide a detailed explanation of the process.

1、 Preparation of raw materials: 

The main raw materials required for the electrolytic preparation of lithium hydroxide include pure water, lithium chloride, sodium hydroxide, etc. 

Among them, lithium chloride is the main reaction raw material, which can be obtained through purchase or self preparation.

2、 Preparation of lithium chloride solution: 

Add lithium chloride to pure water to prepare a lithium chloride solution.

 During the preparation process, attention should be paid to factors such as temperature and concentration to ensure the quality of the solution.

3、 Electrolytic reaction: 

Add the prepared lithium chloride solution to the electrolytic cell and prepare lithium hydroxide through electrolysis. 

Electrolytic reactions generally need to be carried out at a certain temperature 

and pressure to ensure the efficiency of the reaction and the quality of the products. 

During the electrolysis process, hydrogen and chlorine gases are generated, which require corresponding treatment and discharge.

4、 Product separation and purification: After the electrolysis reaction is completed, the product is separated and purified. 

Usually, methods such as filtration, washing, and drying are used for separation and purification, resulting in high-purity lithium hydroxide.

In summary, electrolysis is an effective method for preparing lithium hydroxide. 

During the preparation process, it is necessary to strictly control every step to ensure the quality and reliability of the product.

 At the same time, it is also necessary to strengthen environmental protection awareness, handle waste and emissions reasonably, 

in order to reduce the impact on the environment.