CeRES Process-Separation of Cerium from Lanthanum by Redox Extraction and Stripping
文献类型：期刊论文
| 作者 | Zhou, Yujian2; Schulz, Stephen2; Haberstroh, Jan2; Wenzel, Marco2; Du, Hao1; Weigand, Jan J.2 |
| 刊名 | ACS Sustainable Chemistry and Engineering
 |
| 出版日期 | 2022-12-12 |
| 卷号 | 10期号:49页码:16290-16298 |
| 关键词 | Additives - Cerium - Electrochemical oxidation - Electrochemistry - Electrolytic reduction - Lanthanum - Molecular biology - Rare earths - Solvents |
| DOI | 10.1021/acssuschemeng.2c05048 |
| 英文摘要 | Effective methods for rare earth separation remain an important challenge that could benefit from new approaches. In this study, we demonstrate that for La/Ce separation, an in situ electrochemical Redox process in combination with Extraction and Stripping would provide very efficient separation of these elements in a single extraction step (CeRES). By combining in situ electrochemical oxidation and simultaneous solvent extraction with a stripping process involving electrochemical reduction, separation of Ce3+from La3+is achieved. Here, Ce3+is electrochemically oxidized to Ce4+and removed from the aqueous phase by solvent extraction with 100 mM D2EHPA in n-octane. To recover Ce4+from the loaded organic phase, in situ electrochemical reduction of Ce4+to Ce3+is employed. Thus, extraction and stripping by the redox state change triggered only by electrochemistry are achieved for the first time by using a shared organic phase. The approach was verified in a rapid prototype cell using the additive manufacturing technique, which enables a high Ce extraction of 85% and its recovery with nearly 100% purity in a single extraction step without the use of additional reagents. 漏 2022 American Chemical Society. All rights reserved. |
| 学科主题 | Solvent Extraction |
| 项目编号 | We thank the German Federal Ministry of Education and Research within the CLIENT II─ ; Joint Project (033R188A), the German Research Foundation (WE 4621/4-1/392417756), and the China Scholarship Council (CSC no. 201706430001) for financial support. |
| 出版者 | American Chemical Society |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61192]  |
| 作者单位 | 1.Center of Green Recycling for Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 2.Faculty of Chemistry and Food Chemistry, Technische Universit盲t Dresden, Mommsenstra脽e 4, Dresden; 1062, Germany |
| 推荐引用方式 GB/T 7714 | Zhou, Yujian,Schulz, Stephen,Haberstroh, Jan,et al. CeRES Process-Separation of Cerium from Lanthanum by Redox Extraction and Stripping[J]. ACS Sustainable Chemistry and Engineering,2022,10(49):16290-16298. |
| APA | Zhou, Yujian,Schulz, Stephen,Haberstroh, Jan,Wenzel, Marco,Du, Hao,&Weigand, Jan J..(2022).CeRES Process-Separation of Cerium from Lanthanum by Redox Extraction and Stripping.ACS Sustainable Chemistry and Engineering,10(49),16290-16298. |
| MLA | Zhou, Yujian,et al."CeRES Process-Separation of Cerium from Lanthanum by Redox Extraction and Stripping".ACS Sustainable Chemistry and Engineering 10.49(2022):16290-16298. |
入库方式： OAI收割
来源：过程工程研究所
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