Solvent Extraction of Nickel and Cobalt from Ammonia-Ammonium Carbonate Solution by Using LIX 84-ICNS


In the present paper, separation of nickel and cobalt in ammonia-ammonium carbonate solution that simulates pregnant leach solution of Caron Process by solvent extraction using LIX 84-ICNS was studied. LIX 84-ICNS is a novel extractant which is still being studied, especially for nickel and cobalt separation in ammonia-ammonium carbonate solution. A series of solvent extraction tests were performed at various equilibrium pH, temperature, extractant concentration, and volume ratio of organic to aqueous solution (O/A ratio). The investigation results show that the highest nickel and cobalt extraction percentages of 99.8% and 90.3% were obtained from the extraction test at equilibrium pH of 8.75, temperature of 55°C, extractant concentration of 40% (v/v) and O/A ratio of 1/1, respectively. Oxidation of cobalt in aqueous solution prior to extraction is needed to minimize co-extraction of cobalt. Co-extracted cobalt can be decreased from 90.3% to 30.3% by mixing 1% (v/v) H2O22 in aqueous solution prior to the extraction stage. It was found that nickel and cobalt extractions by LIX 84-ICNS are endothermic processes with enthalpy changes of +171.03 and +7.64 kJ/mole, respectively. Based on constructed McCabe-Thiele Diagram, nickel extraction level of more than 99.9% can be obtained in 2 stages at O/A ratio of 0.5. The highest stripping percentages of nickel and cobalt of 98.82% and 3.16% respectively were obtained at 200 g/l H2SO4 stripping agent.

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Mubarok, M. and Yunita, F. (2015) Solvent Extraction of Nickel and Cobalt from Ammonia-Ammonium Carbonate Solution by Using LIX 84-ICNS. International Journal of Nonferrous Metallurgy, 4, 15-27. doi: 10.4236/ijnm.2015.43003.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Dalvi, A.D., Bacon, W.G. and Osborne, R.C. (2004) The Past and the Future of Nickel Laterites. PDAC 2004 International Conference Trade Show and Investors Exchange, Toronto, 7-10 March 2004, 1-27.
[2] Yildirim, H., Morcali, H., Turan, A. and Yucel, O. (2013) Nickel Pig Iron Production from Lateritic Nickel Ores. Proceedings of the Thirteenth International Ferroalloys Congress: Efficient Technologies in Ferroalloy Industry, Almaty, 9-13 June 2013, 237-244.
[3] McDonald, R. and Whittington, B. (2008) Atmospheric Acid Leaching of Nickel Laterites Review. Part I. Sulphuric Acid Technologies. Hydrometallurgy, 91, 35-55.
[4] McDonald, R. and Whittington, B. (2008) Atmospheric Acid Leaching of Nickel Laterites Review. Part II. Chloride and Bio-Technologies. Hydrometallurgy, 91, 56-69.
[5] Direct Nickel (2014).
[6] Przeszlakowski, S. and Wydra, H. (1982) Extraction of Nickel, Cobalt, and Other Metals (Cu, Zn, Fe) with a Commercial β-Diketone Extractant. Hydrometallurgy, 8, 49-64.
[7] Hu, J., Chen, Q., Hu, H., Qiu, B., Xie, A. and Yin, Z. (2012) Extraction Behaviour of Nickel in Ammoniacal Sulfate Solution with Sterically Hindered β-Diketone. Separation and Purification Technology, 95, 136-143.
[8] Kumar, V., Pandey, B.D. and Bagchi, D. (1991) Application of LIX 84 for Separation of Copper, Nickel, and Cobalt in Ammoniacal Leaching of Ocean Nodules. Materials Transactions, 32, 157-163.
[9] Parija, C., Reddy, B.R. and Sarma, P.V.R.B. (1998) Recovery of Nickel from Solution Containing Ammonium Sulphate using LIX84I. Hydrometallurgy, 49, 255-261.
[10] Alguacil, F.J. and Cobo, A. (1998) Extraction of Nickel from Ammoniacal/Ammonium Carbonate Solutions Using Acorga M5640 in Iberfluid. Hydrometallurgy, 50, 143-151.
[11] Sridhar, V., Verma, J.K. and Shenoy, N.S. (2010) Separation of Nickel from Copper in Ammoniacal/Ammonium Carbonate Solution using ACORGA M5640 by Selective Stripping. Minerals Engineering, 23, 454-456.
[12] Mackenzie, M., Virnig, M. and Feather, A. (2006) The Recovery of Nickel from High-Pressure Acid Leach Solutions Using Mixed Hydroxide Product—LIX 84-INS Technology. Minerals Engineering, 19, 1220-1233.
[13] Flett, D.S. (2004) Cobalt-Nickel Separation in Hydrometallurgy: A Review. Chemistry for Sustainable Development, 12, 81-91.
[14] Fittock, J.E. (1992) Nickel and Cobalt Refining at QNI Pty Ltd Yabulu Queensland. AUSIMM Monograph, 19, 1-47.
[15] Habashi, F. (1997) Handbook of Extractive Metallurgi, Volume II: Primary Metals, Secondary Metals, Light Metals. Wiley-VCH, Heidelberg.
[16] Nathsarma, K.C. and Sarma, P.V.R. (1993) Processing of Ammoniacal Solutions Containing Copper, Nickel, and Cobalt for Metal Separation. Hydrometallurgy, 33, 197-210.
[17] Alguacil, F.J. and Cobo, A. (1998) Separation of Copper and Nickel from Ammoniacal/Ammonium Carbonate Solutions Using Acorga PT5050. Separation Science and Technology, 33, 2257-2264.
[18] LIX 84 -ICNS Technical Information, Global Mining Solution-BASF, 2013.

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