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| Flotation separation experiment of refractory fine-grained copper-zinc sulfide ore |
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Received:June 27, 2024
Revised:September 26, 2024
Accepted:October 28, 2024
Published Online:August 05, 2025
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| DOI： |
| KeyWord:copper-zinc sulfide ore; fine-grained; zinc suppression and floating copper; copper-zinc separation |
| Author | Institution |
| Zhang Fubang |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| Xie Haiyun |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| Chen Jialing |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| Chen haijun |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| Liu Dianwen |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
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| Abstract: |
| Cu-Zn sulfide ore is important non-ferrous metal mineral resource, and the problem of "poor, fine and miscellaneous" in its mineral processing is becoming more and more prominent. There are a large number of copper-zinc sulfide ores in Yuxi region of Yunnan Province, which contain 1.03% Cu, 1.98% Zn and 7.17% S. They are characterized by fine distribution size and complex symbiotic relationship. In this paper, the process of zinc inhibition and copper flotation after fine grinding is adopted. After systematic condition test, open and closed flotation test, the best reagent system and test conditions are determined. The closed-circuit flotation test results show that the grinding fineness of -0.074mm is 95%, the copper flotation and zinc flotation are adopted one-stage roughing, two-stage scavengers and three-stage cleaners, and the final Cu concentrate with Cu grade of 18.23% and Cu recovery of 86.73%, Zn concentrate with Zn grade of 45.67% and Zn recovery of 83.29% are obtained, demonstrating excellent copper-zinc separation performance. This paper provides a research basis for the high efficiency flotation separation of fine Cu-Zn sulfide ore. |
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