International Journal of Biomedical Science and Engineering
Volume 6, Issue 2, June 2018, Pages: 52-58
Received: Aug. 12, 2018;
Accepted: Aug. 22, 2018;
Published: Sep. 17, 2018
Views 792 Downloads 48
Yongfa Song, Research Centre for High Purity Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Guangxin Wang, Research Centre for High Purity Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Bin Yang, Research Centre for High Purity Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Yaqiong Li, Research Centre for High Purity Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Although there are many articles about the effective separation of cobalt and nickel, the investigation on separation of trace cobalt and high concentration nickel are still poorly reported. In this paper, the process of extraction and separation of trace cobalt from sulfate solution containing high concentration of nickel was systematically investigated. The commercial product Cyanex 272 (bis (2,4,4-trimethylpentyl) phosphinic acid) in kerosence was used. The initial solution used for the present study contained in [Co] 25.45 mg/L and [Ni] 96.00 g/L. A cobalt extraction rate of more than 99% has been achieved under the condition of 10 vol. % Cyanex 272, O/A 1:1, pH 5.5, and 60°C, with cobalt concentration being reduced from 25.45 to below 0.5 mg/L. NiSO4 solution with such a low Co level is required for producing ultra-high 5N-6N purity nickel. In addition, high pH value, high Cyanex 272 concentration in organic phase, high O/A ratio, and adding TBP to the organic phase can lead to increased Ni loss.
Removing Trace Co from NiSO4 Solutions Using Cyanex 272, International Journal of Biomedical Science and Engineering.
Vol. 6, No. 2,
2018, pp. 52-58.
Darvishi D, Haghshenas D F, Alamdari E K, et al. Synergistic effect of Cyanex 272 and Cyanex 302 on separation of cobalt and nickel by D2EHPA[J]. Hydrometallurgy, 2005, 77(3): 227-238.
White D T. Selective precipitation of nickel and cobalt: US, US6409979 [P]. 2002. 06. 25
Krupa M, Wieszczycka K, Wojciechowska A, et al. Selective Removal of Cobalt from Nickel Sulphate Solutions Using Oxime of 1-(2-Pyridyl)tridecan-1-one[J]. Separation Science, 2015, 50(5):654-660.
Reddy B R, Rao S V, Park K H. Solvent extraction separation and recovery of cobalt and nickel from sulphate medium using mixtures of TOPS 99 and TIBPS extractants [J]. Minerals Engineering, 2009, 22(5): 500-505.
Tsakiridis P E, Agatzini S L. Simultaneous solvent extraction of cobalt and nickel in the presence of manganese and magnesium from sulfate solutions by Cyanex 301[J]. Journal of Chemical Technology & Biotechnology Biotechnology, 2010, 80(11):1236-1243.
Wellens S, Thijs B, Möller C, et al. Separation of cobalt and nickel by solvent extraction with two mutually immiscible ionic liquids.[J]. Physical Chemistry Chemical Physics Pccp, 2013, 15(24):9663-9669.
Regelrosocka M. Nickel(II) and Cobalt(II) Extraction from Chloride Solutions with Quaternary Phosphonium Salts[J]. Separation Science & Technology, 2012, 47(9):1296-1302.
Luo L, Wei J H, Gen-Yi W U, et al. Extraction studies of cobalt (II) and nickel (II) from chloride solution using PC88A[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(3):687-692.
Xing P, Wang C, Ju Z, et al. Cobalt separation from nickel in sulfate aqueous solution by a new extractant: Di-decylphosphinic acid (DDPA) [J]. Hydrometallurgy, 2012, 113-114(3): 86-90.
Mondal S, Kumar V, Sharma J N, et al. Evaluation of n -octyl(phenyl)phosphinic acid (OPPA) as an extractant for separation of cobalt(II) and nickel(II) from sulphate solutions[J]. Separation & Purification Technology, 2012, 89(89):66-70.
Patrício P R, Mesquita M C, Da S L, et al. Application of aqueous two-phase systems for the development of a new method of cobalt(II), iron(III) and nickel(II) extraction: a green chemistry approach.[J]. Journal of Hazardous Materials, 2011, 193(20):311-318.
Panigrahi S, Parhi P K, Nathsarma K C, et al. Processing of manganese nodule leach liquor for the separation of cobalt and nickel using PC 88A [J]. Minerals & Metallurgical Processing, 2009, 26(3): 133-140.
Mubarok M Z, Hanif L I. Cobalt and Nickel Separation in Nitric Acid Solution by Solvent Extraction Using Cyanex 272 and Versatic 10 [J]. Procedia Chemistry, 2016, 19:743-750.
Petar Iliev, V. Stefanova, B. Lucheva, A. Tzonevski. Selective extraction of cobalt from nickel sulphate solutions by Cyanex 272[J]. Metal 2012 - Conference Proceedings, 21st International Conference on Metallurgy and Materials. 1567-1573.
Zhu Z, Pranolo Y, Zhang W, et al. Separation of cobalt and zinc from concentrated nickel sulfate solutions with Cyanex 272[J]. Journal of Chemical Technology & Biotechnology, 2015, 86(1):75-81.
Park K H, Mohapatra D. Process for cobalt separation and recovery in the presence of nickel from sulphate solutions by Cyanex 272[J]. Metals & Materials International, 2006, 12(5):441-446.
Parhi P K, Panigrahi S, Sarangi K, et al. Separation of cobalt and nickel from ammoniacal sulphate solution using Cyanex 272[J]. Separation & Purification Technology, 2008, 59(3):310-317.