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Recovering Copper from Combined Copper Oxide Ore

     

The method is as follows:

Crush and grind the combined copper oxide ore, then mix it with water to obtain raw ore pulp;

Subject the raw ore pulp to beneficiation using the process of "low-intensity magnetic separation - gravity separation - high-gradient magnetic separation";

Combine the gravity separation concentrate and high-gradient magnetic separation concentrate obtained from the beneficiation process, filter to get enriched residue, and prepare primary pulp;

Add sodium hydroxide for pretreatment, and obtain pretreatment solution and pretreatment residue after filtration;

Prepare secondary pulp and carry out acid leaching on it to obtain copper-containing acid leaching solution.

the recovery rate of copper is no less than 80%, and sponge copper with a mass purity of not less than 90% can be obtained through further extraction. It has the advantages of high beneficiation index, high product quality, strong operability and simple process flow.

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