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Refractory and Leaching-Resistant Ores

     

This copper ore treatment process is designed for refractory and leaching-resistant copper ores, and it consists of three core procedures: leaching, solvent extraction, and electrowinning.

The specific process flow is as follows: Crushed ore is charged into the leaching tank, and the leaching solution is pumped into the same tank. After one complete leaching cycle, the leaching solution is discharged into a low-level storage tank, filtered through a filtration device, and then pumped into a high-level storage tank.

The leaching solution in the high-level storage tank flows by gravity into the extraction-stripping tank. The raffinate is recycled back to the leaching system for reuse; the stripping solution flows into the electrowinning tank; and the electrowinning tail solution is transferred to the tail solution storage tank.

This invention adopts a composite leaching agent, which features strong adaptability and applicability, making it suitable for leaching various types of copper ore resources. Furthermore, using the Lix54-199 alkaline copper extractant for extraction eliminates the need for anti-corrosion treatment of facilities and equipment, reducing initial investment. The leaching agent can be recycled, cutting down on operational costs and avoiding environmental pollution.

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