2023 Fiscal Year Final Research Report
Development of separation method for secondary copper and arsenic minerals using flotation
| Project/Area Number |
22K14636
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 31020:Earth resource engineering, Energy sciences-related
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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 Final Research Achievements |
This study successfully demonstrated the process of separating copper from minerals containing arsenic 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. 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%. Moreover, this research proposes a method for generating a purified copper concentrate from copper concentrate that contains arsenic.
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| Free Research Field |
Mineral processing and flotation
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| Academic Significance and Societal Importance of the Research Achievements |
This research developed a process to separate arsenic from copper concentrate using flotation and oxidation treatment, producing a clean copper concentrate that contains a minimal amount of arsenic. This will decrease arsenic emissions and minimize the pollution of the environment with arsenic.
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