Leaching of silica from vanadium-bearing steel slag in sodium hydroxide solution
文献类型：期刊论文
| 作者 | Xiao, Qinggui1; Chen, Yin2; Gao, Yiying1; Xu, Hongbin1; Zhang, Yi1 |
| 刊名 | HYDROMETALLURGY
 |
| 出版日期 | 2010-09-01 |
| 卷号 | 104期号:2页码:216-221 |
| 关键词 | Reaction kinetics Vanadium-bearing steel slag Silica leach Sodium hydroxide |
| ISSN号 | 0304-386X |
| 通讯作者 | Xiao, QG |
| 英文摘要 | The work aims to selectively extract silica from vanadium-bearing steel slag by a leaching process. The effects of the particle size, the ratio of solid to liquid, the concentration of sodium hydroxide solution and the leaching temperature on the leaching behavior of silica from vanadium-bearing steel slag were investigated. The leaching kinetics of silica from vanadium-bearing steel slag in 30-50% w/w NaOH solutions was studied at 240 degrees C and the shrinking-core model was established to express the leaching kinetics of silica. The data showed that the leaching rate was controlled by the chemical reaction on the system interface and the activation energy for the process was found to be 36.4 kJ mol(-1). By the leaching process, the majority of silica could be removed effectively from the vanadium-bearing steel slag and a residue with a low SiO(2) content of 4.28% and a high V(2)O(5) content of 11.15% was obtained. Under these conditions there was partial dissolution of Al and slight dissolution of Cr, Mn and Ti. (C) 2010 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] | CHROMITE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000282191600014 |
| 公开日期 | 2013-11-13 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5716]  |
| 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, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Univ Chem Technol, Res Ctr, Minist Educ High Grav Engn & Technol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Qinggui,Chen, Yin,Gao, Yiying,et al. Leaching of silica from vanadium-bearing steel slag in sodium hydroxide solution[J]. HYDROMETALLURGY,2010,104(2):216-221. |
| APA | Xiao, Qinggui,Chen, Yin,Gao, Yiying,Xu, Hongbin,&Zhang, Yi.(2010).Leaching of silica from vanadium-bearing steel slag in sodium hydroxide solution.HYDROMETALLURGY,104(2),216-221. |
| MLA | Xiao, Qinggui,et al."Leaching of silica from vanadium-bearing steel slag in sodium hydroxide solution".HYDROMETALLURGY 104.2(2010):216-221. |
入库方式： OAI收割
来源：过程工程研究所
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