A green and efficient technology to recover rare earth elements from weathering crusts
文献类型：期刊论文
| 作者 | Wang, Gaofeng3,4,5,6; Xu, Jie3,4,5,6; Ran, Lingyu3,4,5,6; Zhu, Runliang3,4,5,6; Ling, Bowen2; Liang, Xiaoliang3,4,5,6; Kang, Shichang3,4,5,6; Wang, Yuanyuan3,4,5,6; Wei, Jingming3,4,5,6; Ma, Lingya3,4,5,6 |
| 刊名 | NATURE SUSTAINABILITY
 |
| 出版日期 | 2022-10-31 |
| 页码 | 15 |
| ISSN号 | 2398-9629 |
| DOI | 10.1038/s41893-022-00989-3 |
| 通讯作者 | He, Hongping(hehp@gig.ac.cn) |
| 英文摘要 | Heavy rare earth elements (HREEs) such as Gd-Lu, Sc and Y are irreplaceable metals for a number of critical (including clean) technologies, but they are scarce. Ion-adsorption deposits, which form within weathering crusts, supply more than 95% of the global HREE demand. However, these deposits are currently mined via ammonium-salt-based leaching techniques that are responsible for severe environmental damage and show low recovery efficiency. As a result, the adoption of such techniques is restricted for REE mining, further exacerbating REE scarcity, which in turn could lead to supply chain disruptions. Here we report the design of an innovative REE mining technique, electrokinetic mining (EKM), which enables green, efficient and selective recovery of REEs from weathering crusts. Its feasibility is demonstrated via bench-scale, scaled-up and on-site field experiments. Compared with conventional techniques, EKM achieves similar to 2.6 times higher recovery efficiency, an similar to 80% decrease in leaching agent usage and a similar to 70% reduction in metallic impurities in the obtained REEs. As an additional benefit, the results point to an autonomous purification mechanism for REE enrichment, wherein the separation process is based on the mobility and reactivity diversity between REEs and metallic impurities. Overall, the evidence presented suggests that EKM is a viable mining technique, revealing new paths for the sustainable harvesting of natural resources. |
| WOS关键词 | ELECTROKINETIC REMEDIATION ; PULSE CURRENT ; ORE ; SOIL ; COMPOUND ; ALUMINUM ; EXTRACTION ; REMOVAL |
| 资助项目 | Guangdong Major Project of Basic and Applied Basic Research[2019B030302013] ; National Key R&D Program of China[2021YFC2901701] ; National Natural Science Foundation of China[41825003] ; National Natural Science Foundation of China[42102037] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110720] ; Guangdong Special Support Program[2017TX04Z243] ; Guangdong Special Support Program[2019TX05L169] ; Science and Technology Planning of Guangdong Province, China[2017B030314175] ; Science and Technology Planning of Guangdong Province, China[2020B1212060055] ; GIGCAS[IS-3245] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000876858600002 |
| 资助机构 | Guangdong Major Project of Basic and Applied Basic Research ; National Key R&D Program of China ; National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; Guangdong Special Support Program ; Science and Technology Planning of Guangdong Province, China ; GIGCAS |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90648]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | He, Hongping |
| 作者单位 | 1.Wuhan Univ, Sch Civil Engn, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Met, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Gaofeng,Xu, Jie,Ran, Lingyu,et al. A green and efficient technology to recover rare earth elements from weathering crusts[J]. NATURE SUSTAINABILITY,2022:15. |
| APA | Wang, Gaofeng.,Xu, Jie.,Ran, Lingyu.,Zhu, Runliang.,Ling, Bowen.,...&He, Hongping.(2022).A green and efficient technology to recover rare earth elements from weathering crusts.NATURE SUSTAINABILITY,15. |
| MLA | Wang, Gaofeng,et al."A green and efficient technology to recover rare earth elements from weathering crusts".NATURE SUSTAINABILITY (2022):15. |
入库方式： OAI收割
来源：力学研究所
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