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Atmospheric Pressure Acid Leaching of Copper and Zinc from Alkali-Washed Copper Smelting Dust Residue
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Haibo TANG1, Chensheng ZHAO1, 2, Rongsheng CHEN1, Jinting FENG3, Hongfei DENG1, Huxia JIANG1, Qiqiang MOU1, Qingwei QIN2
Hydrometallurgy of China | 2026, 45(5) : 685 - 690
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Hydrometallurgy of China | 2026, 45(5): 685-690
• Experiment Research •
Atmospheric Pressure Acid Leaching of Copper and Zinc from Alkali-Washed Copper Smelting Dust Residue
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Haibo TANG1, Chensheng ZHAO1, 2, Rongsheng CHEN1, Jinting FENG3, Hongfei DENG1, Huxia JIANG1, Qiqiang MOU1, Qingwei QIN2
Affiliations
  • 1.CNCEC Dajiang Environmental Protection Technology Co., Ltd., Huangshi　435005, China
  • 2.Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan　430081, China
  • 3.School of Metallurgical and Automotive Engineering, Shandong Vocational College of Industry, Zibo　256414, China
Published: 2026-10-20 doi: 10.13355/j.cnki.sfyj.2026.05.008
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In order to realize the further recovery of valuable metals in the alkali-washed copper smelting dust residue, the leaching of copper and zinc from alkali-washed residue by sulfuric acid was studied. The effects of leaching time, sulfuric acid initial mass concentration, liquid volume to solid mass ratio, leaching temperature and stirring rate on the leaching rate of copper and zinc were investigated. The phase composition of acid leaching slag was analyzed by XRD. The results show that the mass fractions of Cu and Zn in the alkali-washed residue are 13.86% and 12.50%, respectively, mainly in the form of oxides that are easily soluble in acid. Under the optimal conditions of leaching time of 30 min, sulfuric acid initial mass concentration of 100 g/L, liquid volume to solid mass ratio of 8∶1, leaching temperature of 80 ℃ and stirring rate of 400 r/min, the leaching rates of Cu and Zn are 95.27% and 92.02%, respectively. The acid leaching residue is mainly composed of SiO2, PbSO4 and CaSO4, which meets the requirements of subsequent oxygen-enriched side-blown lead smelting and reduces the amount of lead matte disposal. This method provides an alternative method for the resource recovery of fluorine and chlorine-containing copper smelting dust.

copper smelting dust  /  alkali-washed residue  /  copper  /  zinc  /  leaching  /  sulfuric acid  /  resource recovery
汤海波, 赵晨升, 陈荣升, 冯金婷, 邓红飞, 江湖侠, 牟其强, 秦庆伟. 铜冶炼烟尘碱洗渣的常压酸浸铜锌试验研究. 湿法冶金, 2026 , 45 (5) : 685 -690 . DOI: 10.13355/j.cnki.sfyj.2026.05.008
Haibo TANG, Chensheng ZHAO, Rongsheng CHEN, Jinting FENG, Hongfei DENG, Huxia JIANG, Qiqiang MOU, Qingwei QIN. Atmospheric Pressure Acid Leaching of Copper and Zinc from Alkali-Washed Copper Smelting Dust Residue[J]. Hydrometallurgy of China, 2026 , 45 (5) : 685 -690 . DOI: 10.13355/j.cnki.sfyj.2026.05.008
Appendix
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Year 2026 volume 45 Issue 5
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.05.008
  • Receive Date：2026-05-12
  • Online Date：2026-10-14
  • Published：2026-10-20
Article Data
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History
  • Received：2026-05-12
  • Revised：2026-06-02
Funding
Affiliations
    1.CNCEC Dajiang Environmental Protection Technology Co., Ltd., Huangshi　435005, China
    2.Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan　430081, China
    3.School of Metallurgical and Automotive Engineering, Shandong Vocational College of Industry, Zibo　256414, 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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