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[Chemical Knowledge]：Manufacturing method and process of lithium chloride

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The manufacturing method
of lithium chloride
1. Introduction

Lithium chloride is an important inorganic salt, which is widely used in chemical industry, medicine, metallurgy and other fields. As a raw material for the production of chemical products, the production method of lithium chloride has attracted much attention. This paper will introduce the manufacturing method of lithium chloride, including raw material selection, reaction principle, process flow, equipment selection and so on.

2. raw material selection

lithium chloride manufacturing raw materials are mainly lithium ore, hydrochloric acid, sodium hydroxide and so on. Among them, lithium ore is the main lithium source, and hydrochloric acid and sodium hydroxide are used to adjust the pH value and promote the reaction. When selecting raw materials, factors such as purity, cost, and availability need to be considered.

3. reaction principle

The manufacture of lithium chloride is mainly realized by chemical reaction. Specifically, lithium ore reacts with hydrochloric acid to generate lithium chloride and hydrogen:

Li2CO3 2HCl → 2LiCl CO2 H2O

In order to make the reaction proceed more fully, it is necessary to control the reaction temperature, stirring speed, acidity and other parameters. At the same time, it is also necessary to add sodium hydroxide to adjust the pH value, so that the reaction product is more pure.

4. process

lithium chloride manufacturing process mainly includes the following steps:

1 ingredients: lithium ore, hydrochloric acid, sodium hydroxide and other raw materials in accordance with a certain proportion of the reactor.

2. reaction: control the reaction temperature, stirring speed and other parameters, so that the reaction is fully carried out.

3. Filtration: The reaction product was filtered to remove impurities.

4. Crystallization: Lithium chloride was precipitated from the solution by cooling crystallization.

5. Drying: The crystallized lithium chloride is dried to obtain the final product.

5. equipment selection

In the manufacturing process of lithium chloride, the equipment that needs to be used includes reaction kettle, filter, crystallization tank, dryer, etc. When selecting equipment, it is necessary to consider factors such as production scale, product quality, operation and maintenance. At the same time, it is also necessary to pay attention to the corrosion resistance and sealing requirements of the equipment to ensure the normal operation of the equipment and ensure product quality and production safety.
Precautions for
6.

In the manufacturing process of lithium chloride, the following matters need to be paid attention to:

1. Control the reaction temperature and stirring speed to ensure sufficient reaction;
2. Strictly control the quality and ratio of raw materials to ensure Product quality;
3. Strengthen equipment maintenance and maintenance to ensure normal operation of equipment;
4. Pay attention to safety production and environmental protection requirements, and abide by relevant laws and regulations.

7. conclusion

lithium chloride as an important inorganic salt, has a wide range of applications in the field of chemical production raw materials. By mastering the manufacturing methods of lithium chloride, including raw material selection, reaction principle, process flow, equipment selection and other aspects, we can better understand and apply lithium chloride production technology, improve product quality and production efficiency, and create greater economic and social benefits for enterprises.

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