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Leaching Characteristics of Stone Coal Vanadium Using Various Acid Treatment Processes
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Mingbao LIU1, 2, Jiantao LI1, 2, Heng ZUO3, Yunxiao LI3, Guochao YAO3, Jianli YAN4, Wenfeng MA4, Hongjian PANG4, Tong ZHAO4
Uranium Mining and Metallurgy | 2025, 44(3) : 50 - 57
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Uranium Mining and Metallurgy | 2025, 44(3): 50-57
Leaching Characteristics of Stone Coal Vanadium Using Various Acid Treatment Processes
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Mingbao LIU1, 2, Jiantao LI1, 2, Heng ZUO3, Yunxiao LI3, Guochao YAO3, Jianli YAN4, Wenfeng MA4, Hongjian PANG4, Tong ZHAO4
Affiliations
  • 1. Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo 726000, China
  • 2. College of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China
  • 3. Shaanxi Wuzhou Mining Co., Ltd., Shangluo 726000, China
  • 4. Neixiang Country Wanxin Chemical Metallurgy Co., Ltd., Nanyang 473000, China
Published: 2025-09-10 doi: 10.13426/j.cnki.yky.2024.12.11
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Taking the stone coal vanadium ore in Danfeng country, Shangluo city, Shannxi province as the research object, the vanadium leaching characteristics were studied using direct acid leaching and sulphuric acid-curing leaching process, respectively. The results indicate that the optimum vanadium leaching rate is 86.7% when using direct acid leaching process under conditions of sample fineness of 45%, H2SO4 concentration of 14%, leaching period of 6 h, leaching temperature of 80 ℃, Ca(ClO)2 dosages of 3%, CaF2 dosages of 2%, and the solid-liquid ratio of 1∶2. While the vanadium leaching rate can reach to 93.5% at ambient temperature by using sulphuric acid-curing leaching process under the conditions of sample fineness of 80%, H2SO4 dosages of 20%, wetting water dosages of 7.5%, curing temperature of 110 ℃, interval time of 10 h,water leaching period of 120 min, solid-liquid ratio of 1∶2. The results for sulphuric acid-curing leaching process is better than that for direct acid leaching process, and the conclusion can provide technical support for vanadium extraction from stone coal in Shannan region.

stone coal vanadium ore  /  acid-leaching  /  sulphuric acid-curing  /  stone coal  /  vanadium
Mingbao LIU, Jiantao LI, Heng ZUO, Yunxiao LI, Guochao YAO, Jianli YAN, Wenfeng MA, Hongjian PANG, Tong ZHAO. Leaching Characteristics of Stone Coal Vanadium Using Various Acid Treatment Processes[J]. Uranium Mining and Metallurgy, 2025 , 44 (3) : 50 -57 . DOI: 10.13426/j.cnki.yky.2024.12.11
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doi: 10.13426/j.cnki.yky.2024.12.11
  • Receive Date：2024-12-24
  • Online Date：2025-09-06
  • Published：2025-09-10
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  • Received：2024-12-24
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Affiliations
    1. Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo 726000, China
    2. College of Chemical Engineering and Modern Material, Shangluo University, Shangluo 726000, China
    3. Shaanxi Wuzhou Mining Co., Ltd., Shangluo 726000, China
    4. Neixiang Country Wanxin Chemical Metallurgy Co., Ltd., Nanyang 473000, 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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