Leaching of Lead and Zinc from a Low-Grade Oxide Ore in Citric Acid Media

Document Type : Research Note

Authors

Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood, I.R. IRAN

Abstract

Leaching of a low-grade lead and zinc oxide ore was studied by an organic reagent, citric acid. The quadratic mathematical models were developed for the relationship among the influential parameters and lead and zinc recoveries. Leaching rate was strongly affected by the interactive effects of factors. It was also found that the quadratic effects of stirring speed and linear effects of temperature have the most significance on the leaching rate of zinc and lead, respectively. It was found that the center level of influential factors was a good condition for getting higher zinc leaching rate, whilst, for the leaching of lead the extreme levels of factors were good. Additionally, the proposed models were optimized using the quadratic programming method to maximize recoveries. The highest recoveries of zinc and lead were achieved to be about 94 and 78 %, respectively.

Keywords

Main Subjects

References

[1] Abkhoshk E., Jorjani E., Al-Harahsheh M.S., Rashchi F., Naazeri M., Review of the Hydrometallurgical Processing of Non-sulfide Zinc Ores, Hydrometallurgy, 149: 153-167 (2014).
[2] Dutra A.J.B., Paiva P.R.P., Tavares L.M., Alkaline Leaching of Zinc from Electric Arc Furnace Steel Dust, Miner Eng., 19: 478–485 (2006).
[3] Santos F.M.F., Peina P.S., Porcaro A., Oliviera V.A., Silva C.A., Leão V.A., The Kinetics of Zinc Silicate Leaching in Sodium Hydroxide, Hydrometallurgy, 102: 43–49 (2010).
[4] Rao Sh., Yang T., Zhang D., Liu W.F., Chen L., Hao Z., Xiao Q., Wen J.F., Leaching of Low Grade Zinc Oxide Ores in NH4Cl–NH3 Solutions with Nitrilotriacetic Acid as Complexing Agents, Hydrometallurgy ,158: 101–106 (2015).
[5] Larba R., Boukerche I., Alane N., Habbache N., Djerad S., Tifout L., Citric Acid as an Alternative Lixiviant for Zinc Oxide Dissolution, Hydrometallurgy, 134–135: 117–123 (2013).
[6] Hursit M., Lacin O., Sarac H., Dissolution Kinetics of Smithsonite Ore as an Alternative Zinc Source with an Organic Leach Reagent, J. Taiwan Inst Chem Eng., 40: 6-12 (2009).
[7] Irannajad M., Meshkini M., Azadmehr A., Leaching of Zinc from Low Grade Oxide Ore Using Organic Acid, Physicochem Probl Miner Process., 49: 547−555 (2013).
[8] Demir F., Lacin O., Donmez B., Leaching Kinetics of Calcined Magnesite in Citric Acid Solutions, Ind Eng Chem Res., 45: 1307-1311 (2006).
[9] Turan M.D., Altundoğan H.S., Tümen F., Recovery of Zinc and Lead from Zinc Plant Residue, Hydrometallurgy, 75: 169-176 (2004).
[10] Behnajady B., Moghaddam J., Behnajady M.A., Rashchi F., Determination of the Optimum Conditions for the Leaching of Lead from Zinc Plant Residues in NaCl–H2SO4-Ca(OH)2 Media by the Taguchi Method, Ind. Eng. Chem. Res., 51: 3887-3894 (2012).
[11] Zárate-Gutiérrez R., Lapidus G.T., Anglesite (PbSO4) Leaching in Citrate Solutions, Hydrometallurgy, 144-145: 124-128 (2014).
[12] Feng Q., Wen S., Wang Y., Zhao W., Deng J., Investigation of Leaching Kinetics of Cerussite in Sodium Hydroxide Solutions, Physicochem Probl. Miner Process., 51: 491−500 (2015).
[13] Azizi A., Seyed Ghasemi S.M., A Comparative Analysis of the Dissolution Kinetics of Lead from Low Grade Oxide ores in HCl, H2SO4, HNO3 and Citric Acid Solutions, Metall. Res. Technol., 114 (2017) 406. doi.org/10.1051/metal/2017014.
[14] Myers R.H., Montgomery D.C., Response Surface Methodology, New York, NY: John Wiley & Sons, Inc., (2002).
[15] Montgomery D.C., Design and Analysis of Experiments, 6th ed., John Wiley & Sons, Inc., New York, USA, 2005.
[16] Yousefi N., Pazouki M., Alikhani Hesari F., Alizadeh M., Statistical Evaluation of the Pertinent Parameters in Bio-Synthesis of Ag/MWf-CNT Composites Using Plackett-burman Design and Response Surface Methodology, Iran. J. Chem. Chem. Eng. (IJCCE), 35(2): 51-62 (2016).
[17] Zakeri A., Pazouki M., Vossoughi M., Use of Response Surface Methodology Analysis for Xanthan Biopolymer Production by Xanthomonas Campestris: Focus on Agitation Rate, Carbon Source, and Temperature, Iran. J. Chem. Chem. Eng. (IJCCE), 36(1): 173-183 (2017).
Iranian Journal of Chemistry and Chemical Engineering
Volume 37, Issue 5 - Serial Number 91
September and October 2018
Pages 105-110

Files

Share

How to cite

Statistics