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Optimization of Reductive Leaching of Cobalt from Chrysocolla by Response Surface Methodology
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Zhengpeng TANG1, 2, 3, 4, Jianwei GUO1, Shuai LI2, 5, Peng CHEN2, 5, Jinfu LI2, 5, Qiusong GUO2, 3, 4
Mining and Metallurgical Engineering | 2025, 45(6) : 108 - 113
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Mining and Metallurgical Engineering | 2025, 45(6): 108-113
• METALLURGY •
Optimization of Reductive Leaching of Cobalt from Chrysocolla by Response Surface Methodology
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Zhengpeng TANG1, 2, 3, 4, Jianwei GUO1, Shuai LI2, 5, Peng CHEN2, 5, Jinfu LI2, 5, Qiusong GUO2, 3, 4
Affiliations
  • 1.School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
  • 2.Institute of Resource Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510650, Guangdong, China
  • 3.State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou 510650, Guangdong, China
  • 4.Guangdong Province Key Laboratory of Rare Earth Development and Application, Guangzhou 510650, Guangdong, China
  • 5.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
doi: 10.3969/j.issn.0253-6099.2025.06.019
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With sodium metabisulfite as a reducing agent, the copper-cobalt oxide ore of chrysocolla was treated by reductive leaching process in sulfuric acid solution system, and the controlling factors in the process were systematically optimized by adopting a central composite design for response surface methodology. Based on investigation of effects of various factors on cobalt leaching rate, appropriated leaching conditions were obtained for reducing the interference caused by silica gel during the leaching process. The results show that under the following optimal conditions, including sulfuric acid with an initial concentration of 2.0 mol/L, temperature of 80 ℃, liquid and solid in a ratio of 4 mL/g, stirring at a speed of 350 r/min and leaching time of 30 min, the cobalt leaching rate can reach 85.16%.

chrysocolla  /  sodium metabisulphite  /  response surface methodology  /  central composite design  /  reductive acid leaching  /  hydrometallurgy  /  cobalt  /  sulfuric acid leaching
唐正鹏, 郭建维, 李帅, 陈鹏, 李金富, 郭秋松. 响应曲面法优化硅孔雀石中钴的还原浸出. 矿冶工程杂志, 2025 , 45 (6) : 108 -113 . DOI: 10.3969/j.issn.0253-6099.2025.06.019
Zhengpeng TANG, Jianwei GUO, Shuai LI, Peng CHEN, Jinfu LI, Qiusong GUO. Optimization of Reductive Leaching of Cobalt from Chrysocolla by Response Surface Methodology[J]. Mining and Metallurgical Engineering, 2025 , 45 (6) : 108 -113 . DOI: 10.3969/j.issn.0253-6099.2025.06.019
Appendix
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Year 2025 volume 45 Issue 6
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doi: 10.3969/j.issn.0253-6099.2025.06.019
  • Receive Date：2025-05-25
  • Online Date：2026-10-08
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  • Received：2025-05-25
Funding
Affiliations
    1.School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
    2.Institute of Resource Utilization and Rare Earth Development, Guangdong Academy of Sciences, Guangzhou 510650, Guangdong, China
    3.State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou 510650, Guangdong, China
    4.Guangdong Province Key Laboratory of Rare Earth Development and Application, Guangzhou 510650, Guangdong, China
    5.School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, 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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