Volume 4, Issue 2, June 2019, Page: 36-43
Magnesium Removal from Concentrated Nickel Solution by Solvent Extraction Using Cyanex 272
Zhu Zhaowu, Hydrometallurgy Clean Production Technology National Engineering Laboratory, Institute of Process Engineering Chinese Academy of Science, Beijing, China; Key Laboratory of Green Process and Engineering Chinese Academy of Science, Beijing, China
Zhang Jian, Hydrometallurgy Clean Production Technology National Engineering Laboratory, Institute of Process Engineering Chinese Academy of Science, Beijing, China; Key Laboratory of Green Process and Engineering Chinese Academy of Science, Beijing, China
Yi Aifei, Hydrometallurgy Clean Production Technology National Engineering Laboratory, Institute of Process Engineering Chinese Academy of Science, Beijing, China; Key Laboratory of Green Process and Engineering Chinese Academy of Science, Beijing, China
Su Hui, Hydrometallurgy Clean Production Technology National Engineering Laboratory, Institute of Process Engineering Chinese Academy of Science, Beijing, China; Key Laboratory of Green Process and Engineering Chinese Academy of Science, Beijing, China; School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China
Wang Lina, Hydrometallurgy Clean Production Technology National Engineering Laboratory, Institute of Process Engineering Chinese Academy of Science, Beijing, China; Key Laboratory of Green Process and Engineering Chinese Academy of Science, Beijing, China
Qi Tao, Hydrometallurgy Clean Production Technology National Engineering Laboratory, Institute of Process Engineering Chinese Academy of Science, Beijing, China; Key Laboratory of Green Process and Engineering Chinese Academy of Science, Beijing, China
Received: May 4, 2019;       Accepted: Jun. 10, 2019;       Published: Jun. 25, 2019
DOI: 10.11648/j.ijmpem.20190402.11      View  38      Downloads  21
Abstract
The refinery of mixed hydroxide precipitate (MHP) from nickel laterite processing by acidic re-leaching will generate a concentrated nickel solution containing some magnesium difficult to remove. Fluorite precipitation method is often used for nickel purification from magnesium contamination, causing serious risk of environmental pollution. Solvent extraction technology has obvious advantages in metal separation and purification which has been widely used in nickel cobalt industries. Magnesium separation from nickel in a synthetic re-leach solution by solvent extraction using Cyanex 272 (bis (2, 4, 4-trimethylpentyl) phosphinic acid)) and its analogue of P 507 (2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester) was studied. It was found that the separation factor of magnesium over nickel reached higher than 200 at pH 5.5, which is much better than that of P507 with the maximum separation factor of 88 at pH 5.0. The conditions including equilibrium pH, organic concentration and A/O ratio for metal extraction and separation of Mg and Ca from nickel with Cyanex 272 in a concentrated synthetic nickel solution were optimized. A five-stage counter-current batch continuous test was carried out with Cyanex 272 under optimized conditions. More than 99% of the magnesium was removed from the synthetic solution containing 3.4 g/L Mg and 106 g/L Ni using 0.5 M Cyanex 272, leaving only 38 mg/L Mg in the purified nickel solution, which is suitable for the electrowinning.
Keywords
Solvent Extraction, Cyanex 272, MHP, Magnesium, Nickel
To cite this article
Zhu Zhaowu, Zhang Jian, Yi Aifei, Su Hui, Wang Lina, Qi Tao, Magnesium Removal from Concentrated Nickel Solution by Solvent Extraction Using Cyanex 272, International Journal of Mineral Processing and Extractive Metallurgy. Vol. 4, No. 2, 2019, pp. 36-43. doi: 10.11648/j.ijmpem.20190402.11
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
S. Farrokhpay, and L. Filippov (2016). Challenges in processing nickel laterite ores by flotation. International Journal of Mineral Processing 151, 59–67.
[2]
K. Komnitsas, E. Petrakis, G. Bartzas, and V. Karmali (2019). Column leaching of low-grade saprolitic laterites and valorization of leaching residues. Science of the Total Environment, 665, 347–357.
[3]
S. Kursunoglu, and M. Kaya, (2016). Atmospheric pressure acid leaching of Caldag lateritic nickel ore. International Journal of Mineral Processing, 150, 1–8.
[4]
A. Oxley, M. E. Smith, and O. Caceres (2016). Why heap leach nickel laterites? Minerals Engineering, 88, 53-60.
[5]
H. Basturkcu, N. Acarkan, and E. Gock (2017). The role of mechanical activation on atmospheric leaching of a lateritic nickel ore. International Journal of Mineral Processing, 163, 1–8.
[6]
R. Harvey, R. Hannah, and J. Vaughan (2011). Selective precipitation of mixed nickel–cobalt hydroxide. Hydrometallurgy, 105, 222–228.
[7]
C. H. Kose, and Y. A. Topkaya (2011). Hydrometallurgical processing of nontronite type lateritic nickel ores by MHP process. Minerals Engineering, 24, 396–415.
[8]
K. Wang, J. Li, R. G. McDonald, and R. E. Browner (2018). Iron, aluminium and chromium co-removal from atmospheric nickel laterite leach solutions. Minerals Engineering, 116 (15), 35-45.
[9]
T. Treasure, and H. Muller (2011). Why make MHP. ALTA 2011 Nickel/Cobalt/Copper Conference, May 23-25, Perth, Australia.
[10]
P. K. Anderson (2010). Mining development on the Kurumbukari Plateau in the Madang Province: Ramu Nico project [online]. Contemporary PNG Studies, 13, 95-114.
[11]
L. Y. Wang, and M. S. Lee (2017). Separation of Co (II) and Ni (II) from chloride leach solution of nickel laterite ore by solvent extraction with Cyanex 301. International Journal of Mineral Processing, 166, 45–52.
[12]
D. T. White (2009). Commercial development of the magnesia mixed hydroxide process for recovery of nickel and cobalt from lateriate leach solutions. Hydrometallurgy of Nickel and Cobalt 2009, Proceedings of the 39th Annual Hydrometallurgy Meeting, Ontario, Canada.
[13]
A. N. Jones, and N. J. Welham (2010). Properties of aged mixed nickel–cobalt hydroxide intermediates produced from acid leach solutions and subsequent metal recovery. Hydrometallurgy, 103, 173–179.
[14]
W. Geng, J. Zhang, G. You, T. Zhou, C. Ding, Y. Yang, R. Wang, X. Wei, Q. Li, L. Zhao, Y. Wu, and M. Zhao (2016). A separation technique to recover nickel and cobalt from a nickel hydroxide having high content of cobalt. Chinese patent, CN 105274332 A (in Chinese).
[15]
D. S. Flett (2004). Cobalt-nickel separation in hydrometallurgy: a review. Chemistry for Sustainable Development, 12, 81-91.
[16]
J. Chang, F. Jia, C. Srinivasakannanb, K. A. Mumford, and X. Yang (2019). Impure ions removal from multicomponent leach solution of nickel sulfide concentrates by solvent extraction in impinging stream rotating packed bed. Chemical Engineering & Processing: Process Intensification, 137, 54–63.
[17]
C. Williams, W. Hawker, and J. W. Vaughan (2013). Selective leaching of nickel from mixed nickel cobalt hydroxide precipitate. Hydrometallurgy, 138, 84–92.
[18]
S. Chong, W. Hawker, and J. Vaughan (2013). Selective reductive leaching of oxidised cobalt containing residue. Minerals Engineering, 54, 82–87.
[19]
S. K. Gogia, and S. C. Das, (1988). The effects of Mg2+, Mn2+, Zn2+, and Al3+ on the nickel deposit during electrowinning from sulphate bath. Metallurgical Transaction B, 19B, 823-830.
[20]
G. A. Georgalli, J. J. Eksteen, M. Pelser, L. Lorenzen, M. S. Onyango, and C. Aldrich ( 2008). Fluoride based control of Ca and Mg concentrations in high ionic strength base metal sulphate solutions in hydrometallurgical circuits. Minerals Engineering, 21 (3), 200–212.
[21]
J. Wang, and B. Li (2012). A solvent extraction method for calcium and magnesium removal, Chinese patent, CN 102417982A (in Chinese).
[22]
A. S. Guimarães, and M. B. Mansur (2017). Solvent extraction of calcium and magnesium from concentrate nickel sulfate solutions using D2HEPA and Cyanex 272 extractants. Hydrometallurgy, 173, 91–97. A. S. Guimaraes, P. S. da Silva, and M. B. Mansur (2014). Purification of nickel from multicomponent aqueous sulfuric solutions by synergistic solvent extraction using Cyanex 272 and Versatic 10. Hydrometallurgy, 150, 173–177.
[23]
A. S. Guimaraes, and M. B. Mansur (2015). Selective solvent extraction of calcium and magnesium from concentrate nickel solutions using Mixtures of Cyanex 272 and D2EHPA. World Academy of Science-Engineering and Technology, 34 (10), 1113-1118.
[24]
J. S. Preston, and A. C. du Preez (2000). Separation of nickel and calcium by solvent extraction using mixtures of carboxylic acids and alkylpyridines. Hydrometallurgy, 58 (3), 239-250.
[25]
S. Donegan (2006). Direct solvent extraction of nickel at Bulong operations. Minerals Engineering, 19 (12), 1234-1245.
[26]
M. C. Olivier, C. Dorfling, and J. J. Eksteen (2012). Evaluating a solvent extraction process route incorporating nickel preloading of Cyanex 272 for the removal of cobalt and iron from nickel sulphate solutions. Minerals Engineering, 27, 37–51.
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