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Dry Separation Technology for Recovering Fine Chalcopyrite by Rotary Triboelectrostatic Separator
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Longyu ZHANG1, Zhongxian WU1, 2, Dongping TAO1
Mining and Metallurgical Engineering | 2024, 44(6) : 36 - 40
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Mining and Metallurgical Engineering | 2024, 44(6): 36-40
• MINERAL PROCESSING •
Dry Separation Technology for Recovering Fine Chalcopyrite by Rotary Triboelectrostatic Separator
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Longyu ZHANG1, Zhongxian WU1, 2, Dongping TAO1
Affiliations
  • 1.School of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255049, Shandong, China
  • 2.School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
Published: 2024-12-01 doi: 10.3969/j.issn.0253-6099.2024.06.008
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Based on the triboelectric charging characteristics of the main minerals of quartz, molybdenite and chalcopyrite in a copper-molybdenum ore, the enrichment effect and mechanism of triboelectrostatic separation of chalcopyrite from the mixture under different conditions were investigated. The triboelectric charging results show that after the interaction with the rotary charger under applied electric voltage, chalcopyrite, molybdenite and quartz are remarkably different in charge-mass ratio. In mineral processing tests, a rotary triboelectrostatic separator (RTS) was adopted to treat an artificial ore with chalcopyrite, molybdenite and quartz in a mass ratio of 1∶1∶8. The results show that with the applied voltage of the rotary charger at -14 kV, the charger rotation speed at 5 000 r/min and the co-flow air velocity at 2 m/s, a copper concentrate can be obtained with Cu grade up from 3.3% to 5.9% at Cu recovery of 90%, and with Cu grade up to 9.3% at a recovery of 50%.

rotary triboelectrostatic separation  /  chalcopyrite  /  triboelectrostatic separation  /  dry separation  /  molybdenite  /  quartz  /  copper-molybdenum ore
Longyu ZHANG, Zhongxian WU, Dongping TAO. Dry Separation Technology for Recovering Fine Chalcopyrite by Rotary Triboelectrostatic Separator[J]. Mining and Metallurgical Engineering, 2024 , 44 (6) : 36 -40 . DOI: 10.3969/j.issn.0253-6099.2024.06.008
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Year 2024 volume 44 Issue 6
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Article Info
doi: 10.3969/j.issn.0253-6099.2024.06.008
  • Receive Date：2024-05-15
  • Online Date：2026-03-19
  • Published：2024-12-01
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  • Received：2024-05-15
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Affiliations
    1.School of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255049, Shandong, China
    2.School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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