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Short-Flow High-Efficiency Copper Extraction from Zinc Smelting Polymetallic Copper Slag via Cyclone Electrowinning Process
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Zhonghua Zhou1, 2, Jinsong Luo1, 3, Shaobo Zhang1, 2, Zhen Cheng1, Zhiyi Wang1, Cunxiong Li1
Copper Engineering | 2026, (4) : 1 - 12
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Copper Engineering | 2026, (4): 1-12
• Special Topic: Utilization of Mining and Metallurgical Solid Waste and Pollution Control •
Short-Flow High-Efficiency Copper Extraction from Zinc Smelting Polymetallic Copper Slag via Cyclone Electrowinning Process
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Zhonghua Zhou1, 2, Jinsong Luo1, 3, Shaobo Zhang1, 2, Zhen Cheng1, Zhiyi Wang1, Cunxiong Li1
Affiliations
  • 1.School of Metallurgical and Energy Engineering，Kunming University of Science and Technology，Kunming 650093，China
  • 2.Yunnan Yuntong Zinc Industry Co.，Ltd.，Kunming 650102，China
  • 3.Zhongtong Southeast Copper Co.，Ltd.，Ningde 352106，China
Published: 2026-08-28 doi: 10.3969/j.issn.1009-3842.2026.04.001
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Conventional treatment methods for complex copper slags originating from zinc smelting are often constrained by high energy consumption, intricate workflows, and low metal recovery efficiencies. To address these challenges, a streamlined, high-efficiency technology based on cyclone electrowinning was developed. This novel process enabled the synergistic leaching of copper, zinc, and indium while selectively extracting copper, effectively obviating the need for solvent extraction and its associated organic pollution risks. This study specifically investigated electrolytic migration behavior of metal ions—predominantly Cu2+—during direct cyclone electrowinning of polymetallic leachates. Utilizing a four-stage stepwise depletion protocol, the process yielded cathode copper with a purity exceeding 99.97% and a current efficiency greater than 97.83%. By significantly simplifying the traditional "leaching-purification-electrowinning" circuit, this technology provided a green, cost-effective pathway for the circular utilization of copper resources from complex polymetallic slags.

zinc smelting system  /  polymetallic complex copper slag  /  cyclone electrowinning  /  electrolytic copper removal  /  stepwise depletion process  /  green recycling
Zhonghua Zhou, Jinsong Luo, Shaobo Zhang, Zhen Cheng, Zhiyi Wang, Cunxiong Li. Short-Flow High-Efficiency Copper Extraction from Zinc Smelting Polymetallic Copper Slag via Cyclone Electrowinning Process[J]. Copper Engineering, 2026 , (4) : 1 -12 . DOI: 10.3969/j.issn.1009-3842.2026.04.001
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Year 2026 volume Issue 4
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Article Info
doi: 10.3969/j.issn.1009-3842.2026.04.001
  • Receive Date：2026-01-05
  • Online Date：2026-09-08
  • Published：2026-08-28
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History
  • Received：2026-01-05
  • Revised：2026-02-04
Funding
Affiliations
    1.School of Metallurgical and Energy Engineering，Kunming University of Science and Technology，Kunming 650093，China
    2.Yunnan Yuntong Zinc Industry Co.，Ltd.，Kunming 650102，China
    3.Zhongtong Southeast Copper Co.，Ltd.，Ningde 352106，China
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https://castjournals.cast.org.cn/joweb/tygc/EN/10.3969/j.issn.1009-3842.2026.04.001
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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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