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The Leaching-Precipitation-ElectroREFINING Process

     

Treatment of Copper Oxide Mines Using the Wet Metallurgical Leaching-Precipitation-ElectroREFINING Process:

A wet metallurgical process is employed for the recovery of copper from copper oxide mines using a leaching-precipitation-electroREFINING method. This approach is particularly well-suited for copper deposits where mining points are numerous, ore quantities are limited, and the copper oxides are disseminated in nature.

One key feature of this method is its ability to perform in-place leaching with sulfuric acid following heap leaching. Afterward, neutralization of the leach solution with a base precipitates copper as Cu(OH)2, which is then washed and filtered. The copper-bearing material from the filter is redissolved in sulfuric acid to form a copper sulfate solution.

The standard leaching-precipitation-copper process is then applied, followed by a high-purity copper recovery step, typically involving advanced electroREFINING methods to achieve a purity level exceeding 99.9%.

This approach offers several advantages:

It eliminates the need to transport mineralized material and directly processes the ore on-site, significantly reducing transportation costs.

The process is cost-effective and highly efficient compared to conventional mining practices.

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