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Study on Radioactivity Visibility of Rossing Uranium Mine in Namibia
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TIAN Yuhui, LIU Zhichao, SHI Liuyin, WANG Guishuo, JIA Xiumin, LI Guang
Uranium Mining and Metallurgy | 2024, 43(2) : 24 - 30
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Uranium Mining and Metallurgy | 2024, 43(2): 24-30
• MINING AND HYDROMETALLURGY •
Study on Radioactivity Visibility of Rossing Uranium Mine in Namibia
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TIAN Yuhui, LIU Zhichao, SHI Liuyin, WANG Guishuo, JIA Xiumin, LI Guang
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  • Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, China
Published: 2024-05-20 doi: 10.13426/j.cnki.yky.2023.10.06
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The ore grade of the Rossing Uranium Mine in Namibia is low and the processing capacity is large. The mined ore is mixed with some waste rocks, and the grinding and leaching costs are high. To solve this problem, the distribution patterns of ore particle size and uranium grade were studied, the radioactivity visibility of representative ore samples was calculated, the radioactive selectivity curve was drawn, and the theoretical sorting index based on the cut-off grade was determined. The theoretical sorting indicators are: when the cut-off grade is 0.01%, the raw ore uranium grade is 0.032%, the concentrate uranium grade is 0.047%, the tailings yield is 33.95%, the tailings uranium grade is 0.002 8%, and the total recovery rate is 96.37%. The results show that radioactive beneficiation has a certain effect and the ore selectivity is high. It is mainly suitable for tailing of coarse-grained and extremely low-grade ores. The radioactivity visibility can be used as the theoretical basis for radioactive beneficiation of Rossing Uranium Mine.

Rossing Uranium Mine  /  radioactivity visibility  /  radiometric sorting  /  uranium ore  /  uranium grade  /  ore particle size
TIAN Yuhui, LIU Zhichao, SHI Liuyin, WANG Guishuo, JIA Xiumin, LI Guang. Study on Radioactivity Visibility of Rossing Uranium Mine in Namibia[J]. Uranium Mining and Metallurgy, 2024 , 43 (2) : 24 -30 . DOI: 10.13426/j.cnki.yky.2023.10.06
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Year 2024 volume 43 Issue 2
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doi: 10.13426/j.cnki.yky.2023.10.06
  • Receive Date：2023-10-24
  • Online Date：2025-07-04
  • Published：2024-05-20
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  • Received：2023-10-24
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    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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