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Refractory Copper Oxide Ores

     

The sulfuric acid curing pretreatment method for refractory copper oxide ores falls within the technical field of metallurgy (for patent scenarios, it is recommended to replace this phrase with pertains to the technical field of metallurgy to align with standard patent writing conventions). The process is as follows: Refractory copper oxide ore, water and concentrated sulfuric acid are fed into a pelletizer in a prescribed proportion. The reaction between water, concentrated sulfuric acid and the ore liberates copper from gangue or other associated minerals, fulfilling the dual purposes of separating copper from other valuable metals and gangue minerals, as well as loosening the structure of the refractory copper oxide ore to increase its porosity.

This pretreatment method significantly improves the technical and economic indicators of heap leaching, thereby achieving a substantial increase in copper leaching rate, recovery rate and resource utilization efficiency, while reducing production costs.

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