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Optimization of Leaching Process Parameters of Hard Rock Uranium Ore
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Jiahong KANG1, Jianguo DENG1, Biao CAO1, Huan LIU2, Liuyin SHI3, Zaidao LIU1, Jun LIU1, Yingcai WANG1, Wentao MA1
Uranium Mining and Metallurgy | 2025, 44(3) : 35 - 40
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Uranium Mining and Metallurgy | 2025, 44(3): 35-40
Optimization of Leaching Process Parameters of Hard Rock Uranium Ore
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Jiahong KANG1, Jianguo DENG1, Biao CAO1, Huan LIU2, Liuyin SHI3, Zaidao LIU1, Jun LIU1, Yingcai WANG1, Wentao MA1
Affiliations
  • 1. Shaoguan Jinyuan Uranium Co., Ltd., CNNC, Shaoguan 511100, China
  • 2. Guangdong Mining Co., Ltd., CNNC, Shaoguan 511100, China
  • 3. Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, China
Published: 2025-09-10 doi: 10.13426/j.cnki.yky.2025.01.01
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Due to the change in ore properties of a certain hard rock uranium mine with the increase of mining depth, the heap leaching process of the ore encountered the problem of heap scaling. In order to solve the problem, the effects of leaching agent acidity, spray intensity, column height and particle size on heap scaling were studied. The results show that when the acidity of the leaching agent is 50.0 g/L, the spray intensity is 40.0 L/(m2·h), and the leaching period is 30 days, there is no scaling in the column leaching test, and the uranium leaching rate of -10 mm ore reaches 83.40%. The results of the 800 t ore pilot test confirms that there is no scaling in the heap with high acidity and large spray intensity, and the uranium leaching rate reaches 86.57%.

uranium mine  /  heap leaching  /  scaling  /  leaching rate  /  leaching agent  /  spray intensity
Jiahong KANG, Jianguo DENG, Biao CAO, Huan LIU, Liuyin SHI, Zaidao LIU, Jun LIU, Yingcai WANG, Wentao MA. Optimization of Leaching Process Parameters of Hard Rock Uranium Ore[J]. Uranium Mining and Metallurgy, 2025 , 44 (3) : 35 -40 . DOI: 10.13426/j.cnki.yky.2025.01.01
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Year 2025 volume 44 Issue 3
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Article Info
doi: 10.13426/j.cnki.yky.2025.01.01
  • Receive Date：2025-01-02
  • Online Date：2025-09-06
  • Published：2025-09-10
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  • Received：2025-01-02
Affiliations
    1. Shaoguan Jinyuan Uranium Co., Ltd., CNNC, Shaoguan 511100, China
    2. Guangdong Mining Co., Ltd., CNNC, Shaoguan 511100, China
    3. Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, 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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