Intensified decomposition of vanadium slag via aeration in concentrated NaOH solution
文献类型：期刊论文
| 作者 | Liu, Longjie1,2; Wang, Zhonghang1,2; Du, Hao1,2; Zheng, Shili1; Lassi, Ulla3; Zhang, Yi1 |
| 刊名 | INTERNATIONAL JOURNAL OF MINERAL PROCESSING
 |
| 出版日期 | 2017-03-10 |
| 卷号 | 160页码:1-7 |
| 关键词 | Vanadium slag Extraction Aeration system Oxygen mass transfer |
| ISSN号 | 0301-7516 |
| 英文摘要 | A new metallurgical process via aeration for the decomposition of vanadium slag in concentrated NaOH solution was proposed. The improvement of oxygen mass transfer coefficient when using aeration at different NaOH concentration was studied and the effects of critical reaction parameters on vanadium extraction were systematically investigated. The optimal condition was determined to be: alkali concentration of 60%, reaction temperature of 130 degrees C, alkali-to-ore mass ratio of 6:1, stirring speed of 500 rpm. The yield of vanadium could reach to 97.41% after reacting for 6 h under this reaction condition. The reaction temperature in this new method is 50-270 degrees C lower than the current liquid oxidation methods reported in the literatures, and the medium alkaline concentration declined from 85% to 60%, exhibiting significant advantages in energy consumption as well as reactor design. Kinetics study indicated that the extraction of vanadium was governed by internal diffusion, and the apparent activation energy was calculated to be 17.57 kJ/mol. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| 研究领域[WOS] | Engineering ; Mineralogy ; Mining & Mineral Processing |
| 关键词[WOS] | AQUEOUS-SOLUTIONS ; WASTE-WATER ; OXYGEN-TRANSFER ; MICRO-BUBBLES ; MASS-TRANSFER ; MICROBUBBLE ; GENERATION ; KINETICS ; SOLUBILITIES ; MECHANISM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000395607600001 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/22073]  |
| 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 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Oulu, FIN-90014 Oulu, Finland |
| 推荐引用方式 GB/T 7714 | Liu, Longjie,Wang, Zhonghang,Du, Hao,et al. Intensified decomposition of vanadium slag via aeration in concentrated NaOH solution[J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING,2017,160:1-7. |
| APA | Liu, Longjie,Wang, Zhonghang,Du, Hao,Zheng, Shili,Lassi, Ulla,&Zhang, Yi.(2017).Intensified decomposition of vanadium slag via aeration in concentrated NaOH solution.INTERNATIONAL JOURNAL OF MINERAL PROCESSING,160,1-7. |
| MLA | Liu, Longjie,et al."Intensified decomposition of vanadium slag via aeration in concentrated NaOH solution".INTERNATIONAL JOURNAL OF MINERAL PROCESSING 160(2017):1-7. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。