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Experimental Research on Low-Alkali Mineral Processing of Skarn-Type Low-Grade Copper-Lead-Zinc Polymetallic Sulfide Ore
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Hailei ZHENG1, Zhibin LIU1, Renjun ZHENG1, 2, Zhiqiang ZHAO3, Chongjun LIU3
Mining and Metallurgical Engineering | 2026, 46(2) : 105 - 111
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Mining and Metallurgical Engineering | 2026, 46(2): 105-111
• MINERAL PROCESSING •
Experimental Research on Low-Alkali Mineral Processing of Skarn-Type Low-Grade Copper-Lead-Zinc Polymetallic Sulfide Ore
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Hailei ZHENG1, Zhibin LIU1, Renjun ZHENG1, 2, Zhiqiang ZHAO3, Chongjun LIU3
Affiliations
  • 1.Yunnan Gold Mining Group Co., Ltd., Kunming 650299, Yunnan, China
  • 2.Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650031, Yunnan, China
  • 3.BGRIMM Technology Group, Beijing 102628, China
doi: 10.3969/j.issn.0253-6099.2026.02.016
Outline
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An experimental research was carried out on mineral processing of a skarn-type low-grade copper-lead-zinc polymetallic sulfide ore from the southwestern Yunnan under low-alkali conditions. In view of the ore characteristics, such as multiple valuable elements, fine dissemination and uneven distribution of useful minerals, a low-alkali processing technique consisting of copper-lead bulk flotation, Cu/Pb separation, and zinc flotation was proposed. With the combined reagents of Z200 and BK906 as the collector for copper-lead bulk flotation, a combination of zinc sulfate, sodium sulfite and sodium sulfide as the depressant, sodium sulfide combined with activated carbon as the reagent removers for copper-lead concentrate, BK902 as the lead collector and BK520 as the copper depressant in the Cu/Pb separation, copper sulfate as the activator in zinc flotation and BK906 as the zinc collector, a closed-circuit test produced a copper concentrate grading 24.05% Cu at 88.18% recovery, containing 2.54% Pb and 188.00 g/t Ag, a lead concentrate grading 75.55% Pb at 81.08% recovery, containing 2.57% Cu and 1 410.00 g/t Ag, and a zinc concentrate grading 52.21% Zn at 90.47% recovery, respectively.

flotation  /  copper-lead-zinc polymetallic ore  /  sulfide ore  /  low-alkali process  /  copper-lead bulk flotation  /  Cu/Pb separation  /  regrinding of rough concentrate  /  copper depressing and lead flotation  /  lead concentrate  /  zinc concentrate
郑海雷, 刘志斌, 郑仁军, 赵志强, 刘崇俊. 某矽卡岩型低品位铜铅锌多金属硫化矿低碱选矿试验研究. 矿冶工程杂志, 2026 , 46 (2) : 105 -111 . DOI: 10.3969/j.issn.0253-6099.2026.02.016
Hailei ZHENG, Zhibin LIU, Renjun ZHENG, Zhiqiang ZHAO, Chongjun LIU. Experimental Research on Low-Alkali Mineral Processing of Skarn-Type Low-Grade Copper-Lead-Zinc Polymetallic Sulfide Ore[J]. Mining and Metallurgical Engineering, 2026 , 46 (2) : 105 -111 . DOI: 10.3969/j.issn.0253-6099.2026.02.016
Appendix
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Year 2026 volume 46 Issue 2
109
18
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Article Info
doi: 10.3969/j.issn.0253-6099.2026.02.016
  • Receive Date：2025-11-05
  • Online Date：2026-10-08
Article Data
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  • Received：2025-11-05
Funding
Affiliations
    1.Yunnan Gold Mining Group Co., Ltd., Kunming 650299, Yunnan, China
    2.Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650031, Yunnan, China
    3.BGRIMM Technology Group, Beijing 102628, 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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