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[Chemical Knowledge]：Production and manufacturing method and process of electrolytic aluminum

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The manufacturing method
of electrolytic aluminum
1. Introduction

electrolytic aluminum is an important chemical production process used to produce aluminum metal. Due to the widespread use of aluminum in various industrial applications, the manufacturing method of electrolytic aluminum is of great significance. This paper will introduce the manufacturing method of electrolytic aluminum in detail, including the steps of raw material preparation, electrolysis process, product collection and post-treatment.

2. raw material preparation
The main raw material for
electrolytic aluminum is alumina, which is a white powder mainly composed of aluminum and oxygen. Alumina is typically extracted from bauxite by the Bayer process or other chemical methods. In the raw material preparation stage, some auxiliary materials, such as fluoride salt, alumina and cryolite, need to be added to improve the electrolysis efficiency and the quality of aluminum.

3. electrolysis process

electrolysis process is the core step of electrolytic aluminum manufacturing. First, alumina and other auxiliary materials are introduced into an electrolytic cell, and then the alumina in the electrolytic cell is subjected to an electrolytic reaction by energization. The electrolytic reaction produces liquid aluminum, which is deposited at the bottom of the cell, and oxygen, which is discharged from the top of the cell. It is necessary to control parameters such as current, voltage and temperature in the electrolysis process to ensure the production efficiency and quality of aluminum.

4. product collection and post-treatment
After the
electrolysis is completed, the aluminum liquid needs to be taken out of the electrolytic cell and cooled and solidified to obtain aluminum ingots. Aluminum ingots also need to be post-processed, such as slag removal, polishing, etc., to meet different industrial needs. At the same time, the collected oxygen can also be further processed and utilized.

5. safety and environmental protection

safety and environmental protection issues need to be paid attention to in the production process of electrolytic aluminum. The waste gas and waste residue produced in the electrolysis process need to be properly treated to avoid the impact on the environment and the health of workers. At the same time, it is also necessary to strictly abide by the safety operation procedures in the electrolysis process to prevent accidents.

6. conclusion

electrolytic aluminum is an important chemical production process, and it is necessary to master the correct manufacturing methods and technical parameters to ensure production efficiency and product quality. At the same time, there is a need to strengthen safety and environmental management to ensure the sustainability of the production process and the health of workers.

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