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Experimental Study on Column Leaching of High Binding-Rate Copper Oxide Ore in Muliashi
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Yaping LIU1, Zhihao HUANG2, Hongjiang WANG2, Runfang ZHANG2, Longjian BAI2, Zechen SHENG2
Mining and Metallurgical Engineering | 2025, 45(6) : 151 - 156
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Mining and Metallurgical Engineering | 2025, 45(6): 151-156
• METALLURGY •
Experimental Study on Column Leaching of High Binding-Rate Copper Oxide Ore in Muliashi
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Yaping LIU1, Zhihao HUANG2, Hongjiang WANG2, Runfang ZHANG2, Longjian BAI2, Zechen SHENG2
Affiliations
  • 1.CNMC Luanshya Copper Mines PLC, Luanshya 999134, Zambia
  • 2.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
doi: 10.3969/j.issn.0253-6099.2025.06.027
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Column leaching experiments were carried out for the high binding-rate copper oxide ore from Mulashi hydrometallurgical plant in Zambia to investigate the effects of proportion of powdered ore (-1 mm), acid consumption for curing and consumption of dripped acid on copper leaching rate. The results show that those factors, such as proportion of powder ore, acid consumption for curing and consumption of dripped acid are in descending order of influence on copper leaching rate. Under the following conditions, including powdered ore accounting for 53%, dripped acid consumption of 20 kg/t and acid consumption of 10 kg/t for curing, the copper leaching rate can reach 72.86%, up by 2.56 percentage points compared to on-site production. Phase and morphology analysis of leaching residue shows that Cu in free copper oxide is mainly leached out by column leaching with dripped acid, while the copper minerals left in residue are bound to copper oxide and copper sulfide. Besides, CaSO4 precipitate is prone to be formed to cover mineral surface during column leaching, thus affecting the copper leaching rate.

hydrometallurgical copper extraction  /  copper oxide ore  /  column leaching  /  heap leaching  /  sulfuric acid curing  /  leaching with dripped acid
刘亚平, 黄志豪, 王洪江, 张润芳, 白龙剑, 盛泽辰. 穆利亚希高结合率氧化铜矿柱浸试验研究. 矿冶工程杂志, 2025 , 45 (6) : 151 -156 . DOI: 10.3969/j.issn.0253-6099.2025.06.027
Yaping LIU, Zhihao HUANG, Hongjiang WANG, Runfang ZHANG, Longjian BAI, Zechen SHENG. Experimental Study on Column Leaching of High Binding-Rate Copper Oxide Ore in Muliashi[J]. Mining and Metallurgical Engineering, 2025 , 45 (6) : 151 -156 . DOI: 10.3969/j.issn.0253-6099.2025.06.027
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Year 2025 volume 45 Issue 6
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doi: 10.3969/j.issn.0253-6099.2025.06.027
  • Receive Date：2025-06-30
  • Online Date：2026-10-08
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  • Received：2025-06-30
Affiliations
    1.CNMC Luanshya Copper Mines PLC, Luanshya 999134, Zambia
    2.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, 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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