Wet copper smelting
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There is a patent (a new process for copper smelting by wet methods) that discusses whether direct electrowinning from the acid leaching of oxidized ores is feasible. Teachers with experience in this area, could you share your thoughts?
No, the acid leaching process produces many impurities, so these must be removed before electrowinning.
Even if it were possible, the high impurity level results in low current efficiency, making it of no practical value.
What is the copper content in the oxidized ore? If the content is high, direct acid leaching and electrowinning can be considered, but certain technical treatments are required
Is the person on the 5th floor involved in hydrometallurgy? With experience in this area, I can discuss it in more detail
After acidic leaching, direct electrolysis can only produce copper powder; to obtain cathode copper, purification and impurity removal are necessary
How can copper be extracted from copper-clad laminates with a copper content of over 30%? Please give me some guidance, teacher! ~
The acid leachate must be purified before electrowinning.
1. When using acid leaching, extraction is required to remove impurities! 2. Copper oxide ore can be treated using the ammonia leaching method, which results in much fewer impurities compared to the acid leaching method; it can also be subjected to reduction. 3. Using acid leaching yields sponge copper powder, which can then be refined through pyrometallurgical processes and electrolysis!
If it is copper oxide ore, the leaching–extraction–electrodeposition process can be used to extract copper.