Current status and prospect of recycling and utilization of rare earth in NdFeB permanent magnet waste

被引：0
|
作者：
Song Q. [1 ,2 ,3 ]
Tong X. [1 ,2 ]
Xie X. [1 ,2 ]
Zhang W.-J. [1 ,2 ]
Cao Y. [1 ,2 ]
Du Y.-P. [1 ,2 ]
Cheng Y.-Z. [1 ,2 ]
机构：
[1] Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming
[2] National and Local Joint Engineering Research Center for Green Comprehensive Utilization of Metal Mine Tailings Resources, Kunming
[3] Yunnan Yuankuang Technology Development Co., Ltd., Kunming
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2022年 / 32卷 / 07期
关键词：
Fire method; NdFeB permanent magnet material; Rare earth; Recycling and utilization; Waste; Wet method;
D O I：
10.11817/j.ysxb.1004.0609.2021-37898
中图分类号：
学科分类号：
摘要：
Neodymium iron boron (NdFeB) permanent magnet materials are widely used in many fields. In the process of producing NdFeB permanent magnet materials, a large amount of waste will be generated. Direct discarding will not only pollute the environment, but also waste secondary resources. This article summarized the technical status of the recycling of rare earths in NdFeB permanent magnet waste. Comparative analysis of the current situation and shortcomings of fire methods in industrial applications such as chlorination method, alloy method, and selective oxidation method was carried out. The research status of wet methods, such as solvent extraction method, has deeply analyzed the limitations and advantages of different methods also was carried out. At the same time, the research status of new technology methods such as electrodeposition method, biological leaching method, hydrogenation method and mechanochemical method were introduced. On this basis, the future development direction of recycling and recycling of rare earth technology in NdFeB permanent magnet waste was prospected. © 2022, China Science Publishing & Media Ltd. All right reserved.
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页码：2058 / 2073
页数：15
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