The electrowinning of vanadium oxide from alkaline solution | |
Liu, Biao; Zheng, Shili; Wang, Shaona; Zhang, Yi; Du, Hao | |
刊名 | HYDROMETALLURGY |
2016-10-01 | |
卷号 | 165期号:OCT页码:244-250 |
关键词 | Vanadium oxide Electrowinning Alkali recycle, cleaner production |
ISSN号 | 0304-386X |
英文摘要 | Roasting-leaching-precipitation-calcinations is the conventional way for manufacturing vanadium oxide. Due to the mixing of sodium and ammonium salts in the ammonium precipitation process, a large amount of high concentration ammonia-nitrogen wastewater is produced. In this work, a novel preparation method of low-valent vanadium oxide has been proposed. Using the intermediate product of sodium metavanadate as material, low-valent vanadium oxide was one-step prepared by electroreduction. The sodium hydroxide was meanwhile formed and could be recycled back to the roasting circuit. Current density, temperature, vanadium concentration and alkali concentration were varied to evaluate current efficiency and energy consumption. A maximum current efficiency of 33.5% and a minimum energy consumption of 2700 kWh were obtained under the optimized conditions of temperature 60 degrees C, vanadium concentration 0.2 M, alkali concentration 0.25 M and current density 267 A/m(2). It is a cleaner production method to prepare low-valent vanadium oxide, showing good prospects. (C) 2016 Elsevier B.V. All rights reserved. |
WOS标题词 | Science & Technology ; Technology |
类目[WOS] | Metallurgy & Metallurgical Engineering |
研究领域[WOS] | Metallurgy & Metallurgical Engineering |
关键词[WOS] | ABSORPTION |
收录类别 | SCI ; ISTP |
语种 | 英语 |
WOS记录号 | WOS:000383522100005 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/21337] |
专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
作者单位 | Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Biao,Zheng, Shili,Wang, Shaona,et al. The electrowinning of vanadium oxide from alkaline solution[J]. HYDROMETALLURGY,2016,165(OCT):244-250. |
APA | Liu, Biao,Zheng, Shili,Wang, Shaona,Zhang, Yi,&Du, Hao.(2016).The electrowinning of vanadium oxide from alkaline solution.HYDROMETALLURGY,165(OCT),244-250. |
MLA | Liu, Biao,et al."The electrowinning of vanadium oxide from alkaline solution".HYDROMETALLURGY 165.OCT(2016):244-250. |
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