Kinetics analysis of decomposition of vanadium slag by KOH sub-molten salt method
文献类型：期刊论文
| 作者 | Liu, Hui-bin1,2,3; Du, Hao1; Wang, Da-wei4; Wang, Shao-na1; Zheng, Shi-li1; Zhang, Yi1 |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2013-05-01 |
| 卷号 | 23期号:5页码:1489-1500 |
| 关键词 | vanadium slag spinel sub-molten salt method kinetics analysis decomposition activation energy |
| 英文摘要 | A novel process was developed for the decomposition of vanadium slag using KOH sub-molten salt under ambient pressure, and the effects of reaction temperature, alkali-to-ore mass ratios, particle size, and stirring speed on vanadium and chromium extraction were studied. The results suggest that the reaction temperature and KOH-to-ore mass ratio are more influential factors for the extraction of vanadium and chromium. Under the optimal reaction conditions (temperature 180 degrees C, initial KOH-to-ore mass ratio 4:1, stirring speed 700 r/min, gas flow 1 L/min, and reaction time 300 min), vanadium and chromium extraction rates can reach up to 95% and 90%, respectively. Kinetics analysis results show that the decomposing process of vanadium slag in KOH sub-molten salt can be well interpreted by the shrinking core model under internal diffusion control. The apparent activation energies for vanadium and chromium are 40.54 and 50.27 kJ/mol, respectively. |
| 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] | 80 DEGREES-C ; SOLUBILITY ; CHROMITE ; SYSTEM ; DIFFUSION ; OXYGEN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000324003300037 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13629]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China ENFI Engn Corp, Beijing 100038, Peoples R China 4.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Hui-bin,Du, Hao,Wang, Da-wei,et al. Kinetics analysis of decomposition of vanadium slag by KOH sub-molten salt method[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2013,23(5):1489-1500. |
| APA | Liu, Hui-bin,Du, Hao,Wang, Da-wei,Wang, Shao-na,Zheng, Shi-li,&Zhang, Yi.(2013).Kinetics analysis of decomposition of vanadium slag by KOH sub-molten salt method.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,23(5),1489-1500. |
| MLA | Liu, Hui-bin,et al."Kinetics analysis of decomposition of vanadium slag by KOH sub-molten salt method".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 23.5(2013):1489-1500. |
入库方式： OAI收割
来源：过程工程研究所
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