Electrolytic preparation and characterization of VCr alloys in molten salt from vanadium slag
文献类型：期刊论文
| 作者 | Liu, Shiyuan1,2; Wang, Lijun1,3; Chou, Kuo-chih4; Kumar, Ramachandran Vasant3 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2019-09-30 |
| 卷号 | 803页码:875-881 |
| ISSN号 | 0925-8388 |
| 关键词 | VCr alloy Electrodeposition NaCl-KCl-VCl3-CrCl3 molten salt |
| DOI | 10.1016/j.jallcom.2019.06.366 |
| 英文摘要 | Vanadium slag contains several critical elements like V, Ti, Cr, Fe and Mn. In our previous work, V and Cr have been enriched by selective chlorination, increasing from 10.05% to 14.95% and 5.84%-8.69% separately. V and Cr still maintain the trivalence state in molten salt. In the current work, the electrodeposition behaviors of V3+ and Cr3+ in NaCl-KCl molten salt at 800 degrees C were investigated using cyclic voltammetry (CV) and square wave voltammetry (SWV) with a tungsten electrode. It was found that the reduction processes of V3+ and Cr3+ consist of two steps, M3+/M2+, M2+/M. The diffusion coefficients of V3+ and Cr3+ in NaCl-KCl molten salt were measured by CV. The effect of VCl3/CrCl3 mass ratio on VCr alloy was investigated by a two-electrode under constant voltage. Pure Cr can be obtained at 2.8 V in the NaCl-KCl molten salt, while VCr alloy (3.71 mass % V-94.28 mass% Cr-2.01 mass % O) was obtained when electrolysis voltage was controlled to 2.8 V at 800 degrees C. The composition of VCr alloy can be designed by changing the molten salt composition. This method can be applied for direct preparation of VCr alloy from vanadium slag, thus offering the use of low cost raw materials with direct environmental benefits. (C) 2019 Published by Elsevier B.V. |
| WOS关键词 | EXTRACTION ; CHROMIUM ; BEHAVIOR ; OXIDES ; ALCL3 ; IRON |
| 资助项目 | National Natural Science Foundation of China[51474141] ; National Natural Science Foundation of China[51774027] ; China Postdoctoral Science Foundation[2019M650848] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000476464900102 |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30366]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Lijun |
| 作者单位 | 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 Cambridge, Dept Mat Sci & Met, 27 Charles Babbage Rd, Cambridge CB3 0FS, England 4.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Shiyuan,Wang, Lijun,Chou, Kuo-chih,et al. Electrolytic preparation and characterization of VCr alloys in molten salt from vanadium slag[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,803:875-881. |
| APA | Liu, Shiyuan,Wang, Lijun,Chou, Kuo-chih,&Kumar, Ramachandran Vasant.(2019).Electrolytic preparation and characterization of VCr alloys in molten salt from vanadium slag.JOURNAL OF ALLOYS AND COMPOUNDS,803,875-881. |
| MLA | Liu, Shiyuan,et al."Electrolytic preparation and characterization of VCr alloys in molten salt from vanadium slag".JOURNAL OF ALLOYS AND COMPOUNDS 803(2019):875-881. |
入库方式： OAI收割
来源：过程工程研究所
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