Efficient separation and recovery of neodymium through volatilization in the recycling process of spent Nd-Fe-B magnets
文献类型：期刊论文
| 作者 | Yang, Pengju1,2; Zhang, Shifan1,3; Zheng, Wentao3; He, Jie1,2 |
| 刊名 | VACUUM
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 227页码:12 |
| 关键词 | Rare earth neodymium Recycling Pb-Nd alloys Separation Vacuum distillation |
| ISSN号 | 0042-207X |
| DOI | 10.1016/j.vacuum.2024.113438 |
| 通讯作者 | He, Jie(jiehe@imr.ac.cn) |
| 英文摘要 | Metal Pb can be used to selectively extract Nd from Nd-Fe-B magnet scraps. However, the separation of Nd from the recycled Pb-Nd alloys has become a new problem. In this work, the separation of Pb from the Pb-Nd alloys by vacuum distillation was investigated. The thermodynamic analysis based on the saturation vapor pressure and separation coefficient indicates that the component Pb is able to be separated from the Pb-Nd alloys by vacuum distillation. The effects of the distillation temperature and duration on the volatilization separation of Pb from the Pb-Nd alloy have been clarified, and the dynamic mechanism of the distillation separation was analyzed. The results show that the increase in the distillation temperature and duration can facilitate the separation between the components Pb and Nd in the Pb-Nd alloys. When the Pb-30 wt%Nd alloy was distilled at 1573 K and 0.1-5 Pa for 210 min, the removal rate of the Pb can reach more than 99.99 %, and the Nd content of the distillation residue was determined to be more than 99.41 wt%. This work provides a new and clean route for the separation and recycling of the rare earth metal Nd in the recycling process of spent Nd-Fe-B magnets. |
| 资助项目 | National Natural Science Foundation of China[51974288] ; National Natural Science Foundation of China[52174280] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[YJKYYQ20210012] ; Space Application System of China Manned Space Program[KJZ-YY-NCL06] ; Guangxi Science and Technology Major Program[AA23023032] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001264359500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; Space Application System of China Manned Space Program ; Guangxi Science and Technology Major Program |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | He, Jie |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Shenyang Univ Technol, Coll Mat Sci & Engn, Shenyang 110870, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Pengju,Zhang, Shifan,Zheng, Wentao,et al. Efficient separation and recovery of neodymium through volatilization in the recycling process of spent Nd-Fe-B magnets[J]. VACUUM,2024,227:12. |
| APA | Yang, Pengju,Zhang, Shifan,Zheng, Wentao,&He, Jie.(2024).Efficient separation and recovery of neodymium through volatilization in the recycling process of spent Nd-Fe-B magnets.VACUUM,227,12. |
| MLA | Yang, Pengju,et al."Efficient separation and recovery of neodymium through volatilization in the recycling process of spent Nd-Fe-B magnets".VACUUM 227(2024):12. |
入库方式： OAI收割
来源：金属研究所
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