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Research Status and Development Direction of Recycling NdFeB Wastes by Hydrometallurgy
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Xiaodong WANG1, 2, Xiaowei ZHANG1, 2, Feng GUO1, 2, Jianfei LI1, 2, Chuxuan DENG1, 2, Shuang WANG1, 2
Hydrometallurgy of China | 2025, 44(2) : 133 - 142
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Hydrometallurgy of China | 2025, 44(2): 133-142
• Reviews •
Research Status and Development Direction of Recycling NdFeB Wastes by Hydrometallurgy
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Xiaodong WANG1, 2, Xiaowei ZHANG1, 2, Feng GUO1, 2, Jianfei LI1, 2, Chuxuan DENG1, 2, Shuang WANG1, 2
Affiliations
  • 1 College of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou 014010, China
  • 2 Key Laboratory of Green Extraction and Efficient Utilization of Light Rare Earth Resources, Ministry of Education, Baotou 014010, China
Published: 2025-04-28 doi: 10.13355/j.cnki.sfyj.2025.02.001
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In the production and processing of NdFeB,more than 30% of rare earth metals will be transferred to the waste, resulting in NdFeB waste can not be effectively used. With the rapid development of new energy automobile industry,the green recycling of NdfeB waste has become a research hotspot in this field. The current research status of hydrometallurgy for recycling NdFeB waste at home and abroad, including acid leaching,precipitation, solvent extraction, alkali decomposition, ionic liquid recovery, hydrolysis and microbial decomposition, are reviewed. At the same time, the technical difficulties facing the current research are pointed out. Finally, the main research direction of NdFeB waste recycling in the future is put forward, which provides valuable reference for the secondary utilization of rare earth resources.

NdFeB  /  waste  /  rare earth  /  hydrometallurgy  /  recovery  /  research status  /  development direction
Xiaodong WANG, Xiaowei ZHANG, Feng GUO, Jianfei LI, Chuxuan DENG, Shuang WANG. Research Status and Development Direction of Recycling NdFeB Wastes by Hydrometallurgy[J]. Hydrometallurgy of China, 2025 , 44 (2) : 133 -142 . DOI: 10.13355/j.cnki.sfyj.2025.02.001
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Year 2025 volume 44 Issue 2
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Article Info
doi: 10.13355/j.cnki.sfyj.2025.02.001
  • Receive Date：2024-11-09
  • Online Date：2025-07-05
  • Published：2025-04-28
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  • Received：2024-11-09
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Affiliations
    1 College of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou 014010, China
    2 Key Laboratory of Green Extraction and Efficient Utilization of Light Rare Earth Resources, Ministry of Education, Baotou 014010, China
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https://castjournals.cast.org.cn/joweb/sfyj/EN/10.13355/j.cnki.sfyj.2025.02.001
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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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