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Leaching Process of Chalcopyrite

     

The leaching process of chalcopyrite involves oxidative leaching of chalcopyrite under low temperature and atmospheric pressure, using silver salt as the catalyst and ammonium persulfate as the oxidant. By controlling the temperature at 70-95℃ and carrying out leaching for 5-10 hours, a copper sulfate solution can be obtained, with a leaching rate of over 96% and a copper recovery rate of over 97%.

Since high temperature and high pressure are not required, the requirements for equipment corrosion resistance and pressure during leaching are low, and no harm is caused to the environment. The silver salt used in the process incurs no loss, while ammonium persulfate can be recycled after regeneration, thus reducing production costs.

This is a chalcopyrite leaching method characterized by simple process flow, short production cycle, low production cost and high production efficiency.

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