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Extraction of Zinc from Lead Flotation Tailings by Sulfuric Acid Leaching
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Shuanquan GUO1, 2, Mei GUO1, 2, Min KANG1, 2, Fangyin NIU1, 2, Xinxia NING1, 2, Xiangdong XING3
Mining and Metallurgical Engineering | 2025, 45(1) : 129 - 132
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Mining and Metallurgical Engineering | 2025, 45(1): 129-132
• METALLURGY •
Extraction of Zinc from Lead Flotation Tailings by Sulfuric Acid Leaching
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Shuanquan GUO1, 2, Mei GUO1, 2, Min KANG1, 2, Fangyin NIU1, 2, Xinxia NING1, 2, Xiangdong XING3
Affiliations
  • 1.Xi'an Northwest Nonferrous Geological Research Institute Co., Ltd., Xi'an 710054, Shaanxi, China
  • 2.Shaanxi Engineering and Technology Research Center for Comprehensive Utilization of Mineral Resources, Xi'an 710054, Shaanxi, China
  • 3.Xi'an University of Architecture and Technology, Xi'an 710054, Shaanxi, China
Published: 2025-02-01 doi: 10.3969/j.issn.0253-6099.2025.01.024
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An experiment was carried out for extraction of zinc from the tailings of lead flotation by adopting sulfuric acid leaching, and effects of grinding fineness, addition of sulfuric acid, leaching temperature, leach time, stirring speed and liquid-solid ratio on zinc leaching rate were investigated. The results show that the lead flotation tailings with the grinding fineness of -0.074 mm 75% are subjected to 1.5 h leaching at 60 ℃ by adding 15% sulfuric acid with stirring speed at 200 r/min, liquid-solid ratio of 3.0 mL/g, resulting in zinc leaching rate of 90.71%. The obtained leachate has Zn at the concentration of 18.94 g/L, and high content of Cd, Fe, Mn, Ca and Mg, which needs attention in the subsequent purification and enrichment operation.

lead flotation tailings  /  sulfuric acid leaching  /  oxidation phase  /  zinc  /  zinc oxide  /  lead-zinc tailings
Shuanquan GUO, Mei GUO, Min KANG, Fangyin NIU, Xinxia NING, Xiangdong XING. Extraction of Zinc from Lead Flotation Tailings by Sulfuric Acid Leaching[J]. Mining and Metallurgical Engineering, 2025 , 45 (1) : 129 -132 . DOI: 10.3969/j.issn.0253-6099.2025.01.024
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Year 2025 volume 45 Issue 1
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doi: 10.3969/j.issn.0253-6099.2025.01.024
  • Receive Date：2024-09-01
  • Online Date：2026-03-17
  • Published：2025-02-01
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  • Received：2024-09-01
Affiliations
    1.Xi'an Northwest Nonferrous Geological Research Institute Co., Ltd., Xi'an 710054, Shaanxi, China
    2.Shaanxi Engineering and Technology Research Center for Comprehensive Utilization of Mineral Resources, Xi'an 710054, Shaanxi, China
    3.Xi'an University of Architecture and Technology, Xi'an 710054, Shaanxi, 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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