| Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences | Host |
| Citation: |
XIE Zihua, WEI Zhicong, LI Mengyu, LIU Yang. Study on Branch Stream Flotation Process of Dapingzhang Copper Mine in Yunnan Province[J]. Conservation and Utilization of Mineral Resources, 2023, 43(2): 123-130. doi: 10.13779/j.cnki.issn1001-0076.2023.02.019
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Study on Branch Stream Flotation Process of Dapingzhang Copper Mine in Yunnan Province
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Abstract
The operating cost of the company is rising along with the amount of low lean copper ore in the Dapingzhang Copper Mine's V2 orebody. In response, the branch stream flotation process was employed to conduct on the Dapingzhang sulfide copper mine, with the objective of improving the flotation index of copper and increasing the profits of the enterprises. According to the test findings, the copper grade of the feed increased from 0.51% to 0.91% by the novel process, and a copper concentrate with a copper grade of 23.67% and a recovery rate of 92.06% was obtained, which was 0.84 and 0.05 percentage points higher than those of the traditional flotation method. Furthermore, the total dosages of collectors decreased by 1/4 and the total selection times reduced by 2 times. Overall, the branch stream flotation process improved the grade of selected copper, optimized the internal flotation process structure and reagent system, reduced the dosage of reagent and selecting equipments, and resulted in significant energy savings and improved efficiency.
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References
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XIE Zihua, WEI Zhicong, LI Mengyu, LIU Yang. Study on Branch Stream Flotation Process of Dapingzhang Copper Mine in Yunnan Province[J]. Conservation and Utilization of Mineral Resources, 2023, 43(2): 123-130. doi: 10.13779/j.cnki.issn1001-0076.2023.02.019
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Figure 1.
Principle process of branch stream flotation
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Figure 2.
Observation of raw ore under microscope
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Figure 3.
Experimental flowsheet of branch-1 flotation conditional test
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Figure 4.
Grade and recovery of copper coarse concentrate under different grinding fineness
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Figure 5.
Grade and recovery of copper coarse concentrate under different lime dosage conditions
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Figure 6.
Grade and recovery of copper coarse concentrate with different collectors
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Figure 7.
Grade and recovery of copper coarse concentrate with different collector dosage
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Figure 8.
Experimental flowsheet of branch-2 flotation conditional test
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Figure 9.
Effect of the second collector dosage on the grade and recovery of copper coarse concentrate
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Figure 10.
Open-circuit flowsheet of single branch flotation
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Figure 11.
Open-circuit flowsheet of branch stream flotation
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Figure 12.
Closed-circuit flowsheet of single branch flotation
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Figure 13.
Closed-circuit flowsheet of branch stream flotation