Selective extraction and separation of REEs from NdFeB magnets scrap using co-chlorination and water leaching
文献类型：期刊论文
| 作者 | Wu, Jian3,4,6,7; Wang, Dong4,6; Ye, Chunlin3; Wang, Zhi2,4,5,6; Hu, Xiaojun1,7 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 306页码:10 |
| 关键词 | NdFeB magnets scrap Rare earth element Co-chlorination Transformation Separation |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2022.122452 |
| 英文摘要 | An approach of co-chlorination followed by water leaching to achieve the selective extraction of rare earth elements (REEs) from NdFeB magnets scrap (scrap) was studied. Co-chlorination refers to the synergistic effect of direct and indirect chlorination reactions. The feasibility of direct and indirect chlorination was explored from both theoretical and practical standpoints. The transformation between NdCl3 and NdOCl during the chlorination roasting process was discovered by X-ray diffraction (XRD) analysis combined with Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy (SEM-EDS) as well as chemical analysis. The formation of NdOCl was prevented by regulating FeCl3 center dot 6H(2)O dosage, chlorination temperature and chlorination time, then the negative impact from the hydrolysis of NdOCl was avoided. As a result, the complete chlorination of REEs was successfully achieved by using co-chlorination and water leaching. The results showed that 96.51% REEs and 64.29% Co can be synchronously extracted into the leaching solution under appropriate conditions. After the separation of REEs and iron, 92 wt% iron oxide was obtained. This work offers an effective method for recovering REEs from NdFeB magnets scrap. |
| WOS关键词 | HIGH-TEMPERATURE OXIDATION ; RARE-EARTH-ELEMENTS ; RECOVERY ; ND ; NEODYMIUM ; IRON ; DY |
| 资助项目 | National Key Research and Development Program of China[2020YFC1909004] ; National Natural Science Foundation of China[51974286] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3-1-13] ; self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences[E055A002] ; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths[213A0103] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000921165100003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences ; self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences ; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56898]  |
| 通讯作者 | Wang, Zhi; Hu, Xiaojun |
| 作者单位 | 1.30 XueYuanRoad, Beijing 100083, Peoples R China 2.1 BeiErJie, Beijing 100190, Peoples R China 3.China Southern Rare Earth Grp Co Ltd, Ganzhou 341000, Peoples R China 4.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Inst Proc Engn, Chinese Acad Sci, Natl Engn Res Ctr Green Recycling Strateg Met Reso, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 7.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jian,Wang, Dong,Ye, Chunlin,et al. Selective extraction and separation of REEs from NdFeB magnets scrap using co-chlorination and water leaching[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2023,306:10. |
| APA | Wu, Jian,Wang, Dong,Ye, Chunlin,Wang, Zhi,&Hu, Xiaojun.(2023).Selective extraction and separation of REEs from NdFeB magnets scrap using co-chlorination and water leaching.SEPARATION AND PURIFICATION TECHNOLOGY,306,10. |
| MLA | Wu, Jian,et al."Selective extraction and separation of REEs from NdFeB magnets scrap using co-chlorination and water leaching".SEPARATION AND PURIFICATION TECHNOLOGY 306(2023):10. |
入库方式： OAI收割
来源：过程工程研究所
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