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Heap Leaching Process for Low-grade Mixed Copper Ore

     

Stage-by-stage Heap Leaching Process for Low-grade Mixed Copper Ore

This process is designed to treat low-grade mixed copper ores containing oxidized copper ores and sulfide copper ores, and consists of the following steps:

Raw ore crushing: The raw ore undergoes three-stage one-closed-circuit crushing;

Sulfuric acid curing;

First-stage heap leaching: Heap leaching in a reusable yard;

Second-stage heap leaching: Heap leaching in a permanent yard;

Copper metal recovery: Extraction, stripping, and electrowinning processes.

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