Abstract
Nickel was recovered from nickel laterite using a sulfation-roasting-leaching process and the effects of operation parameters including acid addition, roasting temperature, and roasting time on nickel extraction and iron dissolution were investigated using response surface methodology (RSM). Two second-order polynomial models of high significance were presented to show the relationship between the responses and the variables. The analysis of variance (ANOVA) showed high coefficients of determination (R 2) of 0.894 and 0.980 for the two models, respectively. Optimum areas of ≥80% Ni extraction and ≤5% Fe dissolution were obtained by the overlaid contours. Verification experiments in the optimum areas were conducted and the results indicate a close agreement with the predicted values obtained from the models.
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S. Sudol, The thunder from down under: everything you wanted to know about laterites but were afraid to ask, Can. Min. J., 126(2005), No.5, p.8.
Y.M. An, Y.X. Jin, J.J. Hao, and J.F. Zhao, Test of Fe-Ni pyrometallurgy from laterite, China Nonferrous Metall., 2010, No.3, p.15.
G.X. Qiu and Q.X. Shi, Research on reduction and enrichment of ferronickel from laterite-nickel ores using carbon as reductant, Min. Metall. Eng., 29(2009), No.6, p.75.
K. Ishii, Development of ferro-nickel smelting from laterite in Japan, Int. J. Miner. Process., 19(1987), No.1–4, p.15.
S.L. Chen, X.Y. Guo, W.T. Shi, and D. Li, Extraction of valuable metals from low-grade nickeliferous laterite ore by reduction roasting-ammonia leaching method, J. Cent. South Univ. Technol., 17(2010), No.4, p.765.
L.F. Power and G.H. Geiger, The application of the reduction roast-ammoniacal ammonium carbonate leach to nickel laterites, Miner. Sci., 9(1997), No.1, p.32.
J.C. Arroyo and D.A. Neudorf, Atmospheric Leach Process for the Recovery of Nickel and Cobalt from Limonite and Saprolite Ores, US Patent, Appl.6261527, 2001.
R.G. McDonald and B.I. Whittington, Atmospheric acid leaching of nickel laterites review: Part I. Sulfuric acid technologies, Hydrometallurgy, 91(2008), No.1–4, p.35.
J.A. Johnson, B.C. Cashmore, and R.J. Hockridge, Optimization of nickel extraction from laterite ores by high pressure acid leaching with addition of sodium sulphate, Miner. Eng., 18(2005), No.13–14, p.1297.
K. Liu, Q.Y. Chen, H.P. Hu, Z.L. Yin, and B.K. Wu, Pressure acid leaching of a Chinese laterite ore containing mainly maghemite and magnetite, Hydrometallurgy, 104(2010), No.1, p.32.
X.Y. Guo, D. Li, K.H. Park, Q.H. Tian, and Z. Wu, Leaching behavior of metals from a limonitic nickel laterite using a sulfation-roasting-leaching process, Hydrometallurgy, 99(2009), No.3–4, p.144.
D. Li, K.H. Park, Z. Wu, and X.Y. Guo, Response surface design for nickel recovery from laterite by sulfation-roastingleaching process, Trans. Nonferrous Met. Soc. China, 20(2010), No.s1, p.92.
D.C. Montgomery, Design and Analysis of Experiments, 6th Ed., John Wiley & Sons Incorporation, New York, 2007, p.405.
G.S. Simate, S. Ndlovu, and M. Gericke, Bacterial leaching of nickel laterite using chemolithotrophic microorganisms: Process optimization using response surface methodology and central composite rotatable design, Hydrometallurgy, 98(2009), No.3–4, p.241.
R.H. Myers and D.C. Montgomery, Response Surface Methodology: Process and Product Optimization Using Designed Experiments, John Wiley & Sons Incorporation, New Jersey, 2002, p.25.
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Guo, Xy., Li, D., Wu, Z. et al. Application of response surface methodology in optimizaing the sulfation-roasting-leaching process of nickel laterite. Int J Miner Metall Mater 19, 199–204 (2012). https://doi.org/10.1007/s12613-012-0538-x
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DOI: https://doi.org/10.1007/s12613-012-0538-x