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Leaching of Uranium and Thorium from Zirconium Metallurgical Waste Residue
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Tianpu ZHANG1, Kang LIU1, 2, Guishuo WANG1, 2, Gengyu LIANG1, 2, Zhongchen LIU1, 2, Hao CHENG1, 2, Huiwu LIU1, 2, Qiulin XIANG1, 2
Hydrometallurgy of China | 2026, 45(1) : 45 - 51
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Hydrometallurgy of China | 2026, 45(1): 45-51
• Experiment Research •
Leaching of Uranium and Thorium from Zirconium Metallurgical Waste Residue
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Tianpu ZHANG1, Kang LIU1, 2, Guishuo WANG1, 2, Gengyu LIANG1, 2, Zhongchen LIU1, 2, Hao CHENG1, 2, Huiwu LIU1, 2, Qiulin XIANG1, 2
Affiliations
  • 1.Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing　101149, China
  • 2.China Nuclear Mining Science and Technology Corporation, CNNC, Beijing　101149, China
Published: 2026-02-20 doi: 10.13355/j.cnki.sfyj.2026.01.007
Outline
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Zircon sand often contains minerals such as kyanite, thorite and thorianite, which contain trace amounts of radioactive elements such as uranium and thorium. During the production of zirconium oxychloride, these radioactive elements are concentrated in the waste residue, which has certain recycling value. To meet the demands of comprehensive utilization and radioactive pollution control of such waste residues, the process conditions for extracting valuable elements such as uranium and thorium from the waste residues were studied, and the effects of different leaching factors and parameters on the leaching efficiency of uranium and thorium were investigated. The results show that under the conditions of sulfuric acid concentration of 4 mol/L, leaching time of 4 h, liquid volume to solid mass ratio of 4∶1, and leaching temperature of 90 ℃, the leaching rates of uranium and thorium reach 99.9% and 88.6%, respectively. The result is better.

zirconium smelting waste residue  /  leaching  /  uranium  /  thorium
张天溥, 刘康, 王桂硕, 梁耕宇, 刘忠臣, 程浩, 刘会武, 向秋林. 锆冶炼废渣中铀、钍的浸出试验研究. 湿法冶金, 2026 , 45 (1) : 45 -51 . DOI: 10.13355/j.cnki.sfyj.2026.01.007
Tianpu ZHANG, Kang LIU, Guishuo WANG, Gengyu LIANG, Zhongchen LIU, Hao CHENG, Huiwu LIU, Qiulin XIANG. Leaching of Uranium and Thorium from Zirconium Metallurgical Waste Residue[J]. Hydrometallurgy of China, 2026 , 45 (1) : 45 -51 . DOI: 10.13355/j.cnki.sfyj.2026.01.007
Appendix
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Year 2026 volume 45 Issue 1
136
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.01.007
  • Receive Date：2025-09-19
  • Online Date：2026-09-28
  • Published：2026-02-20
Article Data
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History
  • Received：2025-09-19
  • Revised：2025-10-28
Funding
Affiliations
    1.Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing　101149, China
    2.China Nuclear Mining Science and Technology Corporation, 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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