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

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The manufacturing method
of electrolytic copper
Electrolytic copper is an important raw material for chemical production, which is widely used in electrical, light industry, machinery manufacturing and other fields. This article will introduce the manufacturing method of electrolytic copper in detail, including raw material preparation, electrolysis process, product processing and other steps.

1. raw material preparation

the manufacture of electrolytic copper need to prepare copper concentrate, sulfuric acid, oxygen and other raw materials. Among them, copper concentrate is the main raw material, the general requirements of copper content in more than 20%. Sulfuric acid is used as the electrolyte and oxygen is used for the oxidation reaction. In the process of raw material preparation, it is necessary to carry out strict quality inspection on the raw materials to ensure that the purity and quality of the raw materials meet the production requirements.

2. electrolysis process

1. Leaching
The copper concentrate is mixed with sulfuric acid for leaching reaction to generate copper sulfate and iron ions. In the leaching process, it is necessary to control the reaction temperature and time to ensure the full leaching of copper ions. At the same time, in order to prevent the influence of impurities such as iron ions, it is necessary to add an appropriate amount of oxidizing agent to generate and remove a precipitate.

2. Purification
The leaching solution contains a large number of impurity ions, such as iron, zinc, arsenic, etc., and the leaching solution needs to be purified. Generally, ion exchange method, solvent extraction method and other methods are used to purify the leaching solution to remove impurity ions.

3. Electrolytic
The purified leachate enters the electrolytic cell and is electrolyzed by direct current. On the cathode, copper ions are reduced to copper and deposited on the cathode; on the anode, oxygen ions in sulfuric acid lose electrons to generate oxygen. It is necessary to control parameters such as current and voltage in the electrolysis process to ensure electrolysis efficiency and product quality.

3. product treatment
After the
electrolysis is completed, the copper element on the cathode needs to be stripped off for surface treatment and product testing. Surface treatment generally uses mechanical polishing or chemical polishing methods to remove oxides and impurities on the surface of the product. Product testing includes testing the chemical composition and physical properties of the product to ensure that the product quality meets the standard requirements.

In short, the manufacturing method of electrolytic copper requires multiple steps such as raw material preparation, electrolysis process and product processing, each of which requires strict control of process parameters and quality indicators to ensure product quality and production efficiency. At the same time, safety management and environmental protection measures need to be strengthened in the production process to ensure the smooth progress of the production process and the health of employees.

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