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Flotation-Acid Leaching Method

     

Flotation-Acid Leaching Method for High-Carbonate Oxidized Copper Ores:

This flotation-acid leaching method for processing high-carbonate oxidized copper ores involves the following steps: after grinding the ore to a certain degree, a combination of collecting agents is used for sulfide flotation to remove carbonate acid-consuming layers, resulting in a coarse concentrate. Under specific conditions, this coarse concentrate is then subjected to leaching to produce a copper sulfate solution.

This method effectively removes the carbonate acid-consuming layers from the original ore, reducing acid consumption in wet leaching by over 70%, while ensuring a copper recovery rate of more than 85%. It reduces production costs and scales down investment requirements for wet metallurgical plants. The process is flexible and easy to control, making it suitable for large-scale industrial applications.

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