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Copper Sulfide Ore

     

The method for recovering copper from copper sulfide ore comprises the following steps:

(1) Grind the copper ore into 100-120 mesh using a ball mill;

(2) Put the ground copper ore into an agitation tank, and add hydrochloric acid, sulfuric acid, nitric acid, water and reagents to carry out chlorination reaction;

(3) Perform solid-liquid separation on the reacted solution obtained in step (2) to obtain a copper chloride solution and filter residue;

(4) Pump the copper chloride solution into an electrolytic cell for electrolysis, add a flocculant, and control the voltage, current amount and copper concentration to deposit copper in the electrolyte on the cathode plate;

(5) Return the circulating solution after copper recovery to the leaching process.

The whole process of the present invention is rationally designed, with low energy consumption and cost, and high dissolution leaching rate and electrolytic recovery rate of copper from copper ore. Experiments show that the copper recovery rate is over 95%, which enables comprehensive utilization of copper resources. It is applicable to both low-grade and high-grade copper ores, can reduce environmental pollution, protect the environment, and is of great significance.

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