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A novel method of leaching vanadium from extracted vanadium residue using sodium sub-molten salt medium
Li, L. J.; Zheng, S. L.; Chen, D. H.; Wang, S. N.; Du, H.; Gao, M. L.; Zhang, Y.
2012
Conference NameInternational Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011)
Source PublicationADVANCES IN METALLURGICAL AND MINING ENGINEERING Book Series: Advanced Materials Research
Pages253-260
Conference DateDEC 23-25, 2011
Conference PlaceBeihai, PEOPLES R CHINA
PublisherTrans Tech Publications Ltd
AbstractLeaching of an extracted vanadium residue in sodium sub-molten salt medium was investigated. The significant effects of reaction temperature, particle size of residue, reaction time and NaOH-to-residue mass ratio on vanadium extraction were studied. By the orthogonal experiment study, it can be concluded that the impact order of factors is T-r > t > R according to the significance to the leaching process. Under conditions of reaction temperature 170 degrees C, NaOH-to-residue 4:1, stirring speed 700 rpm, particle size -74 mu m and reaction time around 180 min, leaching efficiency of vanadium obtained is higher than 90%. And, the leaching process of vanadium, with activation energy 27.69 kJ.mol(-1), is controlled by the chemical reaction-controlled as the following rate equation. ln(1-x) = -kt
KeywordVanadium Extracted Vanadium Residue Sub-molten Salt
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11156
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Li, L. J.,Zheng, S. L.,Chen, D. H.,et al. A novel method of leaching vanadium from extracted vanadium residue using sodium sub-molten salt medium[C]:Trans Tech Publications Ltd,2012:253-260.
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