2023 Fiscal Year Annual Research Report
Development of separation method for secondary copper and arsenic minerals using flotation
| Project/Area Number |
22K14636
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2022-04-01 – 2024-03-31
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| Keywords | Flotation / Enargite / Chalcocite / Copper arsenic / Oxidation treatment / Hydrogen peroxide |
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| Outline of Annual Research Achievements |
This study successfully demonstrated the process of separating secondary copper minerals (chalcocite) from minerals containing arsenic (enargite) via flotation and oxidation treatment using hydrogen peroxide. The research included the basic investigation and practical implementation of the oxidation treatment on copper-arsenic concentrate, ranging from small-scale laboratory experiments to larger-scale bench experiments using copper-arsenic (Cu-As) concentrate. This research demonstrated the ability to decrease the arsenic level in the final copper concentrate to a value lower than the threshold for processing copper concentrate with arsenic, which is set at 0.2%.
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