Paper Title:
Oxygen Pressure Acid Leaching of Vanadium Slag
  Abstract

Oxygen pressure acid leaching process was used to extract vanadium from vanadium slag (Panzhihua steelmaking plant of China). The single factor experiment was finished and the effects of temperature, leaching time, liquid to solid ratio, stirring speed, initial concentration of sulfuric acid, and were investigated on the leaching rate of vanadium, titanium and iron. The leachate and residue were characterized by ICP, XRF, XRD, SEM and EDX. The experiment results indicate when temperature is 140 °C, leaching time is 120 min, liquid to solid ratio is 20:1(ml:g), stirring speed is 500 rpm, initial acid concentration is 200 g/L, oxygen partial pressure is 0.5 MPa, and particle size is -0.075~+0.055 mm, leaching rate of vanadium is 97.89% and the content of vanadium in the residue is 0.586%. Leaching rate of titanium and iron is 12.78% and 94.45% respectively. Vanadium could be extracted effectively through the oxygen pressure acid leaching process.

  Info
Periodical
Edited by
Yiyi Zhouzhou and Qi Luo
Pages
242-247
DOI
10.4028/www.scientific.net/AMM.79.242
Citation
W. Z. Mu, T. A. Zhang, Z. H. Dou, G. Z. Lü, L. Hu, B. Yu, Y. Liu, "Oxygen Pressure Acid Leaching of Vanadium Slag", Applied Mechanics and Materials, Vol. 79, pp. 242-247, 2011
Online since
July 2011
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$32.00
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