Abstract
Vanadium was leached from roasted stone coal by NaOH solution, and the effect of leaching temperature, leaching time, addition of NaOH liquid to solid ratio, the grinding fineness of stone coal, and stirring speed on the vanadium leaching rate was studied. The kinetics analysis for the process is presented by the shrinking core model. The results show that the vanadium leaching ratio of roasted stone coal can be beyond 75% at the 6% NaOH addition, leaching temperature of 95°C, leaching time of 7h, liquid to solid ratio of 1.2mL/g, and grinding fineness of 0.111mm. The leaching process is controlled by interfacial reaction kinetics and the apparent activation energy was 59.36kJ/mol.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
X.W. Wang and M.Y. Wang, “Research Status and Prospect of Vanadium Leaching Processes from Stone Coal”, Chinese Journal of Rare Metals, 34(1) (2010),90–97.
Z.L. Lu, “Investigation and Industrial Practice on Extraction of V2O5 from Stone Coal Containing Vanadium by Acid Process”, Hydrometallurgy of China, 21(4) (2002), 176–182.
X.Y. Zhou et al., “Leaching of Vanadium from Carbonaceous Shale”, Hydrometallurgy, 99 (2009) 97–99.
M.Y. Wang et al., “Extraction of Vanadium from Stone Coal by Microwave Assisted Sulfation Roasting”, JOM, 67(2)(2015), 369–374.
Z.G. Deng et al., “Extracting Vanadium from Stone-Coal by Oxygen Pressure Acid Leaching and Solvent Extraction,” Transactions of Nonferrous Metals Society of China, 20(2010), s118–s122.
D.S. He et al., “An Environmentally-friendly Technology of Vanadium Extraction from Stone Coal,” Minerals Engineering 20 (2007), 1184–1186.
A.H. Tan, “Study on Extracting V2O5 by the Roasting-alkaline Leaching from Vanadium-containing Stone Coal”, Hunan Nonferrous Me tals, 24(1) (2008), 24–26.
T.J. Hu, G.M. Zeng, and X.Z. Yuan, “Leaching kinetics of silver extracted by thiourea from residue in hydrometallurgy of zinc”, The Chinese Journal Of Nonferrous Metals, 11 (5) (2010), 933–937.
Levenspiel, O., Chemical reaction engineering.(Wiley New York etc.)
X.L. Hua and Z.T. Sui, “Kinetics of leaching Ti-bearing slag by dilute sulphuric acid,” Acta Metallurgica Sinica, 39 (3) (2003), 293–296.
Dickinso. C. and Heal. G., “Solid–liquid diffusion controlled rate equations”, Thermochimica Acta, 340 (1999.), 89–103.
M.H. Wang, X.H. Du. and Z.T. Sui, “Kinetics of acidolysis of rich titanium concentrate by H2SO4,” The Chinese Journal of Nonferrous Metals, 11 (1) (2001), 131–134.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 TMS (The Minerals, Metals & Materials Society)
About this chapter
Cite this chapter
Zhou, S., Chen, B., Wang, M., Wang, X. (2016). Kinetics of Extracting Vanadium from Stonecoal by Alkali Leaching. In: Alam, S., Kim, H., Neelameggham, N.R., Ouchi, T., Oosterhof, H. (eds) Rare Metal Technology 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48135-7_16
Download citation
DOI: https://doi.org/10.1007/978-3-319-48135-7_16
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48616-1
Online ISBN: 978-3-319-48135-7
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)