Knowledge Management System Of Institute of process engineering,CAS
| Electrochemical decomposition of vanadium slag in concentrated NaOH solution | |
| Alternative Title | Hydrometallurgy |
| Wang, Zhonghang1,2; Zheng, Shili1; Wang, Shaona1; Qin, Yaling1; Du, Hao1; Zhang, Yi1 | |
| 2015 | |
| Source Publication | HYDROMETALLURGY
 |
| ISSN | 0304-386X |
| Volume | 151Pages:51-55 |
| Abstract | A novel method that introduces an electrochemical field to enhance the decomposition of vanadium slag in concentrated NaOH solution was proposed. Under the optimal conditions (alkali concentration of 40 wt.%, reaction temperature of 120 degrees C, alkali-to-ore mass ratio of 4:1, stirring speed of 1000 rpm, and slot current density of 750 A/m(2)), the extraction percentages of vanadium and chromium could reach approximately 95% and 90%, respectively, after 6 h of reaction time. Compared with the current liquid oxidation methods, the reaction temperature in this new approach is reduced by 60-280 degrees C and the medium concentration is decreased by more than 30%, demonstrating substantial advantages and prospects in terms of actual operation and industrial application. (C) 2014 Elsevier B.V. All rights reserved.; A novel method that introduces an electrochemical field to enhance the decomposition of vanadium slag in concentrated NaOH solution was proposed. Under the optimal conditions (alkali concentration of 40 wt.%, reaction temperature of 120 degrees C, alkali-to-ore mass ratio of 4:1, stirring speed of 1000 rpm, and slot current density of 750 A/m(2)), the extraction percentages of vanadium and chromium could reach approximately 95% and 90%, respectively, after 6 h of reaction time. Compared with the current liquid oxidation methods, the reaction temperature in this new approach is reduced by 60-280 degrees C and the medium concentration is decreased by more than 30%, demonstrating substantial advantages and prospects in terms of actual operation and industrial application. (C) 2014 Elsevier B.V. All rights reserved. |
| Keyword | Vanadium Slag Electrochemical Extraction Naoh Sub-molten Salt |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1016/j.hydromet.2014.10.017 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | OXYGEN ; DIFFUSIVITY ; SOLUBILITY ; CHROMITE ; KINETICS ; LITHIUM |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000348955100006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/11853 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Zhonghang,Zheng, Shili,Wang, Shaona,et al. Electrochemical decomposition of vanadium slag in concentrated NaOH solution[J]. HYDROMETALLURGY,2015,151:51-55. |
| APA | Wang, Zhonghang,Zheng, Shili,Wang, Shaona,Qin, Yaling,Du, Hao,&Zhang, Yi.(2015).Electrochemical decomposition of vanadium slag in concentrated NaOH solution.HYDROMETALLURGY,151,51-55. |
| MLA | Wang, Zhonghang,et al."Electrochemical decomposition of vanadium slag in concentrated NaOH solution".HYDROMETALLURGY 151(2015):51-55. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Electrochemical deco（583KB） | 限制开放 | CC BY-NC-ND | Application Full Text | |||
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