Browse > Article
http://dx.doi.org/10.3365.KJMM.2010.48.01.062

Recovery of Nickel and Cobalt by a Hydrometallurgical Process from Nickel Laterite Ore with High Magnesium Content  

Lee, Manseung (Department of Advanced Materials Science & Engineering, Mokpo National University)
Kim, Sangbae (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources)
Choi, Youngyun (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources)
Chae, Jonggwee (Department of Advanced Materials Science & Engineering, Mokpo National University)
Publication Information
Korean Journal of Metals and Materials / v.48, no.1, 2010 , pp. 62-70 More about this Journal
Abstract
Leaching and solvent extraction experiments have been performed to develop a hydrometallurgical process for the recovery of nickel and cobalt from nickel laterite ore with high magnesium content. Most of the nickel and magnesium in the laterite ore dissolved at leaching conditions of $80^{\circ}C$ and 100 g/L sulfuric acid concentration. while half of the cobalt and iron were leached at the same conditions. Solvent extraction experiments were carried out with D2EHPA and saponifed D2EHPA from a synthetic solution containing Ni, Co, and Mg. The extraction percentage of Co, Mg. and Ni by D2EHPA was very low in a pH range of 4.4 to 7.3. while the extraction percentage sharply increased by using saponified D2EHPA. The stripping percentage of the metals from the saponified D2EHPA increased with sulfuric acid concentration and reached 99.9% at 1 M $H_2SO_4$ solution.
Keywords
Ni Laterite ore; Leaching; solvent extraction; stripping D2EHPA;
Citations & Related Records

Times Cited By SCOPUS : 1
연도 인용수 순위
1 D. Georgiou and V. G. Papangelakis, Hydrometallurgy 49, 23 (1998)   DOI   ScienceOn
2 K. H. Min, J. Kor. Inst. Met. & Mater. 24, 1235 (1986)
3 K. H. Park, and C. W. Nam, Trends Met. & Mater. Eng. 21, 4 (2008)
4 A. R. Burkin, Critical reports on applied chemistry vol. 17 Extractive metallurgy of nickel. p.52-53, John Wiley & Son, NY (1987)
5 G. K. Das, S. Acharya, and R. P. Das, Hydrometallurgy 39, 117 (1995)   DOI   ScienceOn
6 B. I. Whittington, J. A. Johnson, L. P. Quan, R. G. McDonald, and D. M. Muir, Hydrometallurgy 70, 47 (2003)   DOI
7 J. A. Johnson, B. C. Cashmore, and R. J. Hockridge, Minerals Eng. 18, 1297 (2005)   DOI   ScienceOn
8 R. G. McDonald and B. I. Whittington, Hydrometallurgy 91, 35 (2008)   DOI   ScienceOn
9 D. H. Rubisov and V. G. Papangelakis, Hydrometallurgy 58, 89 (2000)   DOI   ScienceOn
10 B. I. Whittington, R. G. McDonald, J. A. Johnson, and D. M. Muir, Hydrometallurgy 70, 31 (2003)   DOI
11 M. Pourbaix, Atlas of electrochemical equilibria in aqueous solutions, p.141 Pergamon Press. Oxford (1966)
12 D. H. Rubisov and V. G. Papangelakis, Hydrometallurgy 58, 13 (2000)   DOI   ScienceOn
13 R. G. McDonald and B. I. Whittington, Hydrometallurgy 91, 56 (2008)   DOI   ScienceOn
14 P. E. Tsakiridis and S. L. Agatzini, Minerals Eng. 17, 535 (2004)   DOI   ScienceOn