Abstract
The dissolution kinetics of vanadium trioxide in sulphuric acid-oxygen medium was examined. It was determined that the concentration of sulphuric acid and stirring speed above 800 r·min−1 did not significantly affect vanadium extraction. The dissolution rate increased with increasing temperature and oxygen partial pressure, but decreased with increasing particle size. The dissolution kinetics was controlled by the chemical reaction at the surface with the estimated activation energy of 43.46 kJ·mol−1. The leaching mechanism was confirmed by characterizing vanadium trioxide and the dissolution residue using SEM-EDS analysis. Combined with thermodynamic calculation, the pressure leaching of vanadium trioxide in the temperature range (100 to 140 °C) studied occurs as follows: V2O3 + O2 + H2SO4 = (VO2)2SO4 + H2O.
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References
Moskalyk R.R., and Alfantazi A.M., Processing of vanadium: a review, Miner. Eng., 2003, 16(1): 793.
Ognyanova A., Ozturk A.T., Michelis I. De, Ferella F., Taglieri G., Akcil A., and Vegliò F., Metal extraction from spent sulfuric acid catalyst through alkaline and acidic leaching, Hydrometallurgy, 2009, 100(1–2): 20.
Marafi M., and Stanislans A., Options and processes for spent catalyst handling and utilization, J. Hazard. Mater. B, 2003, 101(2): 123.
Ho E.M., Kyle J., Lallence S., and Muir D.M., Recovery of vanadium from spent catalysts and alumina residues, [in] IMM. Hydrometallurgy 94, Chapman & Hall, London, 1994: 1105.
Meryem Seferinoğlu, Mehtap Paul, Å ke Sandström, and Agah Köker, Acid leaching of coal and coal-ashes, Fuel, 2003, 82(4): 1721.
Zhu Y.G., Zhang G.F., Feng Q.M., Lu Y.P., Ou L.M., and Huang S.J., Acid leaching of vanadium from roasted residue of stone coal, Trans. Nonferrous Met. Soc. China, 2010, 20(1): 107.
Yang K., Zhang X.Y., Tian X.D., Yang Y.L., and Chen Y.B., Leaching of vanadium from chromium residue, Hydrometallurgy, 2010, 103(1–4): 7.
Krzysztof Mazurek, Katarzyna Białowicz, and Mieczysław Trypuć, Recovery of vanadium, potassium and iron from a spent catalyst using urea solution, Hydrometallurgy, 2010, 103(1–4): 19.
Potgieter J.H., Kabemba M.A., Teodorovic A., Potgieter-Vermaak S.S., and Augustyn W.G., An investigation into the feasibility of recovering valuable metals from solid oxide compounds by gas phase extraction in a fluidised bed, Miner. Eng., 2006, 19(2): 140.
Mishra Debaraj, Kim Dong J., Ralph David E., Ahn Jong G., and Rhee Young H., Bioleaching of spent hydro-processing catalyst using acidophilic bacteria and its kinetics aspect, J. Hazard. Mater., 2008, 152(3): 1082.
Lozano L.J., and Juan D., Leaching of vanadium from spent sulphuric acid catalysts, Miner. Eng., 2001, 14(5): 543.
Liu G.Z., An Y., and Sui Z.H., Kinetics of exteacting vanadium from HDS spent catalyst by alkali leaching, Mini. Metall. Eng., 2004, 24(2): 65.
Pourbaix M., Atlas of Electrochemical Equilibria in Aqueous Solutions, 2d English ed. National Association of Corrosion Engineers, Houston, Tex, 1974.
Amer A.M., Processing of Egyptian boiler-ash for extraction of vanadium and nickel, Waste manage, 2002, 22(5): 515.
Qiu S., Wei C., Li M.T., Zhou X.J., Li C.X., and Deng Z.G., Dissolution kinetics of vanadium trioxide at high pressure in sodium hydroxide-oxygen systems, Hydrometallurgy, 2011, 105(3–4): 350.
Georgiou D., and Papangelakis V.G., Sulphuric acid pressure leaching of a limonitic laterite: chemistry and kinetics, Hydrometallurgy, 1998, 49(1): 23.
Souza A.D., Pina P.S., Santos F.M.F., Silva da C.A., and Leão V.A., Effect of iron in zinc silicate concentrate on leaching with sulphuric acid, Hydrometallurgy, 2009, 95(3–4): 207.
Antonijecvić M.M., Janković A.D., and Dimitrijević M.D., Kinetics of chalcopyrite dissolution by hydrogen peroxide in sulphuric acid, Hydrometallurgy, 2004, 71(3–4): 329.
Władysława Mulak, Beata Miazga, and Anna Szymczycha, Kinetics of nickel leaching from spent catalyst in sulphuric acid solution, Int. J. Miner. Process., 2005, 77(4): 231.
Souza A.D., Pina P.S., Leão V.A., Silva C.A., and Siqueira P.F., The leaching kinetics of a zinc sulphide concentrate in acid ferric sulphate. Hydrometallurgy, 2007, 89(1–2): 72.
Nizamettin Demirkıran, Dissolution kinetics of ulexite in ammonium nitrate solutions, Hydrometallurgy, 2009, 95(3–4): 198.
Aydogan S., Dissolution kinetics of sphalerite with hydrogen peroxide in sulphuric acid medium, Chem. Eng. J., 2006, 123(3): 65.
Habashi F., Principles of Extractive Metallurgy, Vol.1., Gordon and Breach, New York, 1969.
Sohn H.Y., and Wadsworth M.E., Rate Processes of Extractive Metallurgy, Plenum Press, New York, 1979: 141.
Tromans D., Oxygen solubility modeling in inorganic solutions: concentration, temperature and pressure effects, Hydrometallurgy, 1998, 50(3): 279.
Yang X.W., He A.P., and Yuan B.Z., Thermodynamic Date Handbook in Aqueous Solutions at High Temperature, Metallurgical Industry Press, Beijing, 1983.
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Zhou, X., Wei, C., Xia, W. et al. Dissolution kinetics and thermodynamic analysis of vanadium trioxide during pressure oxidation. Rare Metals 31, 296–302 (2012). https://doi.org/10.1007/s12598-012-0509-4
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DOI: https://doi.org/10.1007/s12598-012-0509-4