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Copper extraction process you must know

2023-04-18 Xinhai (252)

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Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper consists of a series of physical and chemical processes.

The most commonly used process to extract copper is pyrometallurgical extraction. In this process, copper ore is mined from the ground and then concentrated using various methods. The concentrated ore is then roasted to remove sulfur and moisture. This produces a calcine, which is then smelted in a furnace to produce a molten copper matte. The matte is then further refined to produce pure copper.

Another method of copper extraction is hydrometallurgical extraction. In this process, the copper ore is crushed and ground into a fine powder. It is then treated with various chemicals and leached in tanks with sulfuric acid or ammonia. This leaching process separates the copper from the ore and produces a copper-rich solution. The copper can then be recovered from the solution using a variety of methods, such as solvent extraction or electrowinning.

There are also other processes used to extract copper, such as bioleaching, which uses microorganisms to extract copper from low-grade ores, and electrorefining, which uses electrolysis to purify copper.

Overall, the process of copper extraction is complex and involves several stages of crushing, grinding, concentration, smelting, refining, and purification. The method used depends on the type of ore and the desired purity of the final product.


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