Recovery of rare earth elements from weathering crust soils using electrokinetic mining technology
文献类型：期刊论文
| 作者 | Wang, Gaofeng3,4,5; Liang, Xiaoliang3,4,5; Ling BW(凌博闻)1,2; Xu, Jie3,4,5; Ran, Lingyu3,4,5; Wei, Jingming3,4,5; Zhu, Runliang3,4,5; Zhu, Jianxi3,4,5; He, Hongping3,4,5 |
| 刊名 | JOURNAL OF RARE EARTHS
 |
| 出版日期 | 2025-07-01 |
| 卷号 | 43期号:7页码:1548-1558 |
| 关键词 | Rare earth elements Electrokinetic mining Recovery Ion-adsorption rare earth deposit |
| ISSN号 | 1002-0721 |
| DOI | 10.1016/j.jre.2024.06.007 |
| 通讯作者 | Zhu, Jianxi(zhujx@gig.ac.cn) |
| 英文摘要 | Ion-absorption deposits (IADs) of rare earth elements (REEs) constitute the main economic resources of the essential heavy rare earth elements (HREE). Nonetheless, the existing leaching methods for extracting REEs from IADs face limitations stemming from significant environmental consequences and a poor REE recovery rate. In a recent development, electrokinetic mining (EKM) has emerged as a novel technology for extracting REEs from ion-adsorption deposits, demonstrating the potential for environmentally friendly and efficient recovery of REEs from weathering crusts. However, the transport mechanism of REE in weathering crust soil in an applied electric field remains poorly understood, and the influence of the EKM process has yet to be studied. In this study, we systematically investigated the transport characteristics of REE in weathering crust soil under the influence of an electric field. We demonstrate that the transport of REE is simultaneous with the transport of water, H & thorn;, and OH-in the applied electric field, where the EKM process is influenced by the voltage gradient, initial soil water content, electrode numbers, and power-on time. Under the optimal EKM conditions, 78.8% of REE is recovered from a 45 kg-scale weathering crust soil. Additionally, we identify the transport diversity between light REE (LREE) and HREE, which assists in the separation and pre-enrichment of LREE and HREE. Furthermore, we demonstrate that the mechanism for REE transport under an electric field involves a combination of electromigration, electroosmosis, and electrolysis working synergistically. This study provides new perspectives on the transport behavior and mechanism of REEs in weathering crust soil under an electric field. These findings pave the way for the practical implementation of EKM technology. (c) 2024 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
| 分类号 | 一类 |
| WOS关键词 | LEACHING PROCESS ; CLAY-MINERALS ; GENESIS ; CHINA ; MINERALIZATION ; RESOURCES ; DEPOSITS ; ROCKS ; ORE |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA0430205] ; Guangdong Major Project of Basic and Applied Basic Research[2019B030302013] ; National Natural Science Foundation of China[42102037] ; National Natural Science Foundation of China[42272158] ; Guangdong Basic and Applied Basic Research Foundation[2023A1515012927] ; Science and Technology Planning Guangdong Province, China[2023B1212060048] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001521663100018 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Guangdong Major Project of Basic and Applied Basic Research ; National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; Science and Technology Planning Guangdong Province, China |
| 其他责任者 | Zhu, Jianxi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/102277]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China; 5.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Gaofeng,Liang, Xiaoliang,Ling BW,et al. Recovery of rare earth elements from weathering crust soils using electrokinetic mining technology[J]. JOURNAL OF RARE EARTHS,2025,43(7):1548-1558. |
| APA | Wang, Gaofeng.,Liang, Xiaoliang.,凌博闻.,Xu, Jie.,Ran, Lingyu.,...&He, Hongping.(2025).Recovery of rare earth elements from weathering crust soils using electrokinetic mining technology.JOURNAL OF RARE EARTHS,43(7),1548-1558. |
| MLA | Wang, Gaofeng,et al."Recovery of rare earth elements from weathering crust soils using electrokinetic mining technology".JOURNAL OF RARE EARTHS 43.7(2025):1548-1558. |
入库方式： OAI收割
来源：力学研究所
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