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| Research on new beneficiation technology of deep recovery of copper from high grade copper slag |
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Received:April 03, 2024
Revised:April 11, 2024
Accepted:April 12, 2024
Published Online:August 05, 2025
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| DOI： |
| KeyWord:High grade copper slag; Metallic copper; Depth copper separation; KM-100; Sieving |
| Author | Institution |
| YIN Zheng-dao |
Faculty of Land Resources Engineering,Kunming University of Science and Technology |
| LIU Dian-wen |
Faculty of Land Resources Engineering,Kunming University of Science and Technology |
| YU Xing-cai |
Faculty of Land Resources Engineering,Kunming University of Science and Technology |
| XIE Hai-yun |
Faculty of Land Resources Engineering,Kunming University of Science and Technology |
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| Abstract: |
| The copper grade of a smelting slag in Yunnan Province is 3.70%, predominantly present as copper sulfide and metallic copper. Due to its high elemental copper content, traditional flotation methods struggle to recover it effectively. Therefore, a tailored flotation test is needed based on the copper components' characteristics. In this study, a novel process involving grinding, sieving, and flotation was employed to separate copper concentrate. The resulting mixed copper concentrate had a grade of 16.05% and a total recovery rate of 96.23%. The tailings only contained 0.18% copper. The new process developed in this study achieves the comprehensive recovery of copper components from slag, resulting in significant economic benefits for the concentrator. It also offers valuable insights and practical experience for the efficient beneficiation of high-grade copper slag. |
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