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| Recovery and separation of Fe and Mn from simulated chlorinated vanadium slag by molten salt electrolysis | |
| Liu, Shi-yuan1,2; Zhen, Yu-lan2; He, Xiao-bo3; Wang, Li-jun1; Chou, Kuo-chih3 | |
| 2020-12-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
 |
| ISSN | 1674-4799 |
| Volume | 27Issue:12Pages:1678-1686 |
| Abstract | Tailings from the vanadium extraction process are discarded each year as waste, which contain approximately 30wt% of Fe. In our previous work, we extracted Fe and Mn from vanadium slag, and Fe and Mn existed in the form of FeCl2 and MnCl2 after chlorination by NH4Cl to achieve effective and green usage of waste containing Fe and Mn. In this work, square wave voltammetry (SWV) and cyclic voltammetry (CV) were applied to investigate the electrochemical behaviors of Fe2+ and Mn2+ in NaCl-KCl melt at 800 degrees C. The reduction processes of Fe2+ and Mn2+ were found to involve one step. The diffusion coefficients of FeCl2 and MnCl2 in molten salt of eutectic mixtures NaCl-KCl molten salt were measured. The electrodeposition of Fe and Mn were performed using two electrodes at a constant cell voltage. The Mn/Fe mass ratio of the electrodeposited product in NaCl-KCl-2.13wt%FeCl2-1.07wt%MnCl2 was 0.0625 at 2.3 V. After the electrolysis of NaCl-KCl-2.13wt%FeCl2-1.07wt%MnCl2 melted at 2.3 V, the electrolysis was again started under 3.0 V and the Mn/Fe mass ratio of the electrodeposited product was 36.4. This process provides a novel method to effectively separate Fe and Mn from simulated chlorinated vanadium slag. |
| Keyword | vanadium slag molten salt electrolysis separation electrochemical analysis |
| DOI | 10.1007/s12613-020-2140-y |
| Language | 英语 |
| WOS Keyword | COMPREHENSIVE UTILIZATION ; ELECTROCHEMICAL-BEHAVIOR ; IRON ; EXTRACTION ; MANGANESE ; CHROMIUM ; MELT ; TI |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS ID | WOS:000603567900012 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/43086 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Li-jun |
| Affiliation | 1.Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Shi-yuan,Zhen, Yu-lan,He, Xiao-bo,et al. Recovery and separation of Fe and Mn from simulated chlorinated vanadium slag by molten salt electrolysis[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2020,27(12):1678-1686. |
| APA | Liu, Shi-yuan,Zhen, Yu-lan,He, Xiao-bo,Wang, Li-jun,&Chou, Kuo-chih.(2020).Recovery and separation of Fe and Mn from simulated chlorinated vanadium slag by molten salt electrolysis.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,27(12),1678-1686. |
| MLA | Liu, Shi-yuan,et al."Recovery and separation of Fe and Mn from simulated chlorinated vanadium slag by molten salt electrolysis".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 27.12(2020):1678-1686. |
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