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Extraction of vanadium from high calcium vanadium slag using direct roasting and soda leaching

  • Xin-sheng Li
  • Bing XieEmail author
Article

Abstract

The extraction of vanadium from high calcium vanadium slag was attempted by direct roasting and soda leaching. The oxidation process of the vanadium slag at different temperatures was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The effects of roasting temperature, roasting time, Na2CO3 concentration, leaching temperature, leaching time, and liquid to solid ratio on the extraction of vanadium were studied. The results showed that olivine phases and spinel phases in the vanadium slag were completely decomposed at 500 and 800°C, respectively. Vanadium-rich phases were formed at above 850°C. The leaching rate of vanadium reached above 90% under the optimum conditions: roasting temperature of 850°C, roasting time of 60 min, Na2CO3 concentration of 160 g/L, leaching temperature of 95°C, leaching time of 150 min, and liquid to solid ratio of 10:1 mL/g. The main impurities were Si and P in the leach liquor.

Keywords

vanadium metallurgy extraction slag roasting leaching 

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References

  1. [1]
    L. Perron. The vanadium industry: a review, [in] M.F. Tanner, P.A. Riveros, J.E. Dutrizac, M. Gattrell, and L. Perron, eds., Vanadium: Geology, Processing and Applications, Proceedings of the International Symposium on Vanadium Held at the 41st Annual Conference of Metallurgists of CIM (COM), Montreal, 2002, p.17.Google Scholar
  2. [2]
    P.R. Taylor, S.A. Shuey, E.E. Vidal., and J.C. Gomez, Extractive metallurgy of vanadium containing titaniferous magnetite ores: a review, Miner. Metall. Process., 23(2006), No.2, p.80.Google Scholar
  3. [3]
    B.V.R. Raja, Vanadium market in the world, Steelworld, 13(2007), No.2, p.19.Google Scholar
  4. [4]
    M.Y. Wang, L.S, Xiao, Q.G. Li, X.W. Wang, and X.Y. Xiang, Leaching of vanadium from stone coal with sulfuric acid, Rare Met., 28(2009), No.1, p.1.CrossRefGoogle Scholar
  5. [5]
    A. Ognyanova, A.T. Ozturk, I. De Michelis, F. Ferella, G. Taglieri, A. Akcil, and F. Vegliò, Metal extraction from spent sulfuric acid catalyst through alkaline and acidic leaching, Hydrometallurgy, 100(2009), p.20.CrossRefGoogle Scholar
  6. [6]
    R.R. Moskalyk and A.M. Alfantazi, Processing of vanadium: a review, Miner. Eng., 16(2003), No.9, p.793.CrossRefGoogle Scholar
  7. [7]
    D.X. Huang, Vanadium Extraction and Steelmaking, Metallurgical Industry Press, Beijing, 2000, p.17.Google Scholar
  8. [8]
    W.S. Ge, W. He, Y. Peng, J. Wang, H.T. Cheng, B.L. Yi, K. Chen, and J.Q. Yan, Trail on vanadium recovery process from low-vanadium bearing hot metal, [in] The 7th CSM Annual Meeting Proceeding, Beijing, 2009, p.275.Google Scholar
  9. [9]
    J.C. Wang, Effect of calcium on leaching of vanadium from vanadium slag, Sichuan Nonferrous Met., 2004, No.4, p.27.Google Scholar
  10. [10]
    B. Burwell, Extractive metallurgy of vanadium, J. Met., 13(1961), p.562.Google Scholar
  11. [11]
    G. Gabra and I. Malinsky, A comparative study of the extraction of vanadium from titaniferous magnetite and slag, [in] Processing Symposium, Extractive Metallurgy of Refractory Metals, 110th AIME Annual Meeting, Chicago, 1981, p.167.Google Scholar
  12. [12]
    H. Shlewit and M. Alibrahim, Extraction of sulfur and vanadium from petroleum coke by means of salt-roasting treatment, Fuel, 85(2006), p.878.CrossRefGoogle Scholar
  13. [13]
    H.S. Chen, Extraction of vanadium pentoxide from vanadium slag by lime calcination, Iron Steel Vanadium Titanium, 13(1992), No.2, p.1.Google Scholar
  14. [14]
    N.P. Slotvinsky-sidak, V.I. Potapov, L.E. Kolpakov, S.D. Grekov, V.G. Dobosh, and N.V. Grinberg, A Method of Recovering Vanadium Values from a Vanadium-containing Material, US Patent, No.1394024, 1973.Google Scholar
  15. [15]
    Z.H. Dong, R.J. Li, D.J. Liu, and D.C. Xiao, A Method for Extracting Vanadium Pentoxide from Stone Coal or Vanadiferous Cinder With High Calcium Calcination, Chinese Patent, No.CN101323914A, 2008.Google Scholar
  16. [16]
    H.Z. Wang, Slag Analysis, Science Press, Beijing, 2006, p.753.Google Scholar

Copyright information

© University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringChongqing UniversityChongqingChina

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