Separation of tungsten and molybdenum with solvent extraction using functionalized ionic liquid tricaprylmethylammonium bis(2,4,4-trimethylpentyl)phosphinate

Fei Cao; Wei Wang; De-zhou Wei; Wen-gang Liu

doi:10.1007/s12613-020-2172-3

Volume 28 Issue 11

Nov. 2021

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2021 > 28(11): 1769-1776

Fei Cao, Wei Wang, De-zhou Wei, and Wen-gang Liu, Separation of tungsten and molybdenum with solvent extraction using functionalized ionic liquid tricaprylmethylammonium bis(2,4,4-trimethylpentyl)phosphinate, Int. J. Miner. Metall. Mater., 28(2021), No. 11, pp. 1769-1776. https://doi.org/10.1007/s12613-020-2172-3

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Fei Cao, Wei Wang, De-zhou Wei, and Wen-gang Liu, Separation of tungsten and molybdenum with solvent extraction using functionalized ionic liquid tricaprylmethylammonium bis(2,4,4-trimethylpentyl)phosphinate, Int. J. Miner. Metall. Mater., 28(2021), No. 11, pp. 1769-1776. https://doi.org/10.1007/s12613-020-2172-3

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Research Article

Separation of tungsten and molybdenum with solvent extraction using functionalized ionic liquid tricaprylmethylammonium bis(2,4,4-trimethylpentyl)phosphinate

+ Author Affiliations

Corresponding author:
De-zhou Wei E-mail: dzwei@mail.neu.edu.cn
Received: 23 May 2020; Revised: 19 August 2020; Accepted: 25 August 2020; Available online: 27 August 2020

Abstract

Abstract

Functionalized ionic liquids (FILs) as extractants were employed for the separation of tungsten and molybdenum from a sulfate solution for the first time. The effects of initial pH, extractant concentration, metal concentrations in the feed were comprehensively investigated. The results showed that tricaprylmethylammonium bis(2,4,4-trimethylpentyl)phosphinate ([A336][Cyanex272]) could selectively extract W over Mo at an initial pH value of 5.5; the best separation factor β_W/Mo of 25.61 was obtained for a solution with low metal concentrations (WO₃: 2.49 g/L, Mo: 1.04 g/L). The [A336][Cyanex272] system performed effectively for solutions of different W/Mo molar ratios and different metal ion concentrations in the feed. The chemical reaction between [A336][Cyanex272] and W followed the ion association mechanism, which was further proved by the Fourier-transform infrared (FTIR) spectra of loaded [A336][Cyanex272] and the free extractant. The stripping experiments indicated that 95.48% W and 100.00% Mo were stripped using a 0.20 mol/L sodium hydroxide solution. Finally, the selective extractions of W and Mo from two synthetic solutions of different high metal concentrations were obtained; the separation factor β_W/Mo reached 23.24 and 17.59 for the first and second solutions, respectively. The results suggest the feasibility of [A336][Cyanex272] as an extractant for the separation of tungsten and molybdenum.
- tungsten;
- molybdenum;
- ionic liquid;
- separation;
- solvent extraction

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[1]	X.S. Wu, G.Q. Zhang, L. Zeng, Q. Zhou, Z.H. Li, D. Zhang, Z.Y. Cao, W.J. Guan, Q.G. Li, and L.S. Xiao, Study on removal of molybdenum from ammonium tungstate solutions using solvent extraction with quaternary ammonium salt extractant, Hydrometallurgy, 186(2019), p. 218. doi: 10.1016/j.hydromet.2019.04.006
[2]	J.T. Li and Z.W. Zhao, Kinetics of scheelite concentrate digestion with sulfuric acid in the presence of phosphoric acid, Hydrometallurgy, 163(2016), p. 55. doi: 10.1016/j.hydromet.2016.03.009
[3]	Z.W. Zhao, C.F. Cao, and X.Y. Chen, Separation of macro amounts of tungsten and molybdenum by precipitation with ferrous salt, Trans. Nonferrous Met. Soc. China, 21(2011), No. 12, p. 2758. doi: 10.1016/S1003-6326(11)61120-5
[4]	Z.W. Zhao and L.H. He, Enlightenment of geochemistry on separation of molybdenum and tungsten, Chin. J. Nonferrous Met., 24(2014), No. 6, p. 1637.
[5]	W.J. Guan, G.Q. Zhang, and C.J. Gao, Solvent extraction separation of molybdenum and tungsten from ammonium solution by H₂O₂-complexation, Hydrometallurgy, 127-128(2012), p. 84. doi: 10.1016/j.hydromet.2012.07.008
[6]	T.H. Nguyen and M.S. Lee, Separation of molybdenum(VI) and tungsten(VI) from sulfate solutions by solvent extraction with LIX 63 and PC 88A, Hydrometallurgy, 155(2015), p. 51. doi: 10.1016/j.hydromet.2015.04.014
[7]	Z.W. Zhao, W.G. Zhang, X.Y. Chen, C.F. Cao, J.T. Li, and X.H. Liu, Study on removing Mo from tungstate solution using coprecipitation adsorption method based on novel Mo sulphidation process, Can. Metall. Q., 52(2013), No. 4, p. 358. doi: 10.1179/1879139513Y.0000000073
[8]	X.Y. Lu, G.S. Huo, and C.H. Liao, Separation of macro amounts of tungsten and molybdenum by ion exchange with D309 resin, Trans. Nonferrous Met. Soc. China, 24(2014), No. 9, p. 3008. doi: 10.1016/S1003-6326(14)63438-5
[9]	Z.W. Zhao, L.L. Gao, C.F. Cao, J.T. Li, X.Y. Chen, A.L. Chen, X.H. Liu, P.M. Sun, G.S. Huo, Y.J. Li, and H.G. Li, Separation of molybdenum from tungstate solution—scavenging thiomolybdate by copper compound, Metall. Mater. Trans. B, 43(2012), No. 6, p. 1284. doi: 10.1007/s11663-012-9743-2
[10]	Z.W. Zhao, X.Y. Xu, X.Y. Chen, G.S. Huo, A.L. Chen, X.H. Liu, and H. Xu, Thermodynamics and kinetics of adsorption of molybdenum blue with D301 ion exchange resin, Trans. Nonferrous Met. Soc. China, 22(2012), No. 3, p. 686. doi: 10.1016/S1003-6326(11)61232-6
[11]	G.S. Huo, C. Peng, Q. Song, and X.Y. Lu, Tungsten removal from molybdate solutions using ion exchange, Hydrometallurgy, 147-148(2014), p. 217. doi: 10.1016/j.hydromet.2014.05.015
[12]	P.C. Rout, G.K. Mishra, B. Padh, K.R. Suresh, and B. Ramachandra Reddy, Solvent extraction separation of molybdenum as thio-molybdate complex from alkaline tungsten leach liquor of spent HDS catalyst—A pilot study, Hydrometallurgy, 174(2017), p. 140. doi: 10.1016/j.hydromet.2017.10.002
[13]	L.G. Chen and H. Bermudez, Solubility and aggregation of charged surfactants in ionic liquids, Langmuir, 28(2012), No. 2, p. 1157. doi: 10.1021/la2040399
[14]	X.Q. Sun, Y. Ji, F.C. Hu, B. He, J. Chen, and D.Q. Li, The inner synergistic effect of bifunctional ionic liquid extractant for solvent extraction, Talanta, 81(2010), No. 4-5, p. 1877. doi: 10.1016/j.talanta.2010.03.041
[15]	D. Kogelnig, A. Stojanovic, F. Jirsa, W. Körner, R. Krachler, and B.K. Keppler, Transport and separation of iron(III) from nickel(II) with the ionic liquid trihexyl(tetradecyl)phosphonium chloride, Sep. Purif. Technol., 72(2010), No. 1, p. 56. doi: 10.1016/j.seppur.2009.12.028
[16]	W. Wang, H.L. Yang, H.M. Cui, D.L. Zhang, Y. Liu, and J. Chen, Application of bifunctional ionic liquid extractants [A336][CA-12] and [A336][CA-100] to the lanthanum extraction and separation from rare earths in the chloride medium, Ind. Eng. Chem. Res., 50(2011), No. 12, p. 7534. doi: 10.1021/ie2001633
[17]	A. Rout and K. Binnemans, Solvent extraction of neodymium(III) by functionalized ionic liquid trioctylmethylammonium dioctyl diglycolamate in fluorine-free ionic liquid diluent, Ind. Eng. Chem. Res., 53(2014), No. 15, p. 6500. doi: 10.1021/ie404340p
[18]	D. Kogelnig, A. Stojanovic, M. Galanski, M. Groessl, F. Jirsa, R. Krachler, and B.K. Keppler, Greener synthesis of new ammonium ionic liquids and their potential as extracting agents, Tetrahedron Lett., 49(2008), No. 17, p. 2782. doi: 10.1016/j.tetlet.2008.02.138
[19]	L. Guo, J. Chen, L. Shen, J.P. Zhang, D.L. Zhang, and Y.F. Deng, Highly selective extraction and separation of rare earths(III) using bifunctional ionic liquid extractant, ACS Sustainable Chem. Eng., 2(2014), No. 8, p. 1968. doi: 10.1021/sc400541b
[20]	J.P. Mikkola, P. Virtanen, and R. Sjöholm, Aliquat 336®—a versatile and affordable cation source for an entirely new family of hydrophobic ionic liquids, Green Chem., 8(2006), No. 3, art. No. 250. doi: 10.1039/b512819f
[21]	C. Xiao, L. Zeng, L.S. Xiao, and G.Q. Zhang, Solvent extraction of molybdenum (VI) from hydrochloric acid leach solutions using P507. part I: Extraction and mechanism, Solvent Extr. Ion Exch., 35(2017), No. 2, p. 130. doi: 10.1080/07366299.2017.1308154
[22]	Q. Sun, W. Wang, L.M. Yang, S.T. Huang, Z. Xu, Z.G. Ji, Y. Li, and Y.H.N. Hu, Separation and recovery of heavy metals from concentrated smelting wastewater by synergistic solvent extraction using a mixture of 2-hydroxy-5-nonylacetophenone oxime and bis(2, 4, 4-trimethylpentyl) -phosphinic acid, Solvent Extr. Ion Exch., 36(2018), No. 2, p. 175. doi: 10.1080/07366299.2018.1446680
[23]	Z.T. Ichlas and D.C. Ibana, Process development for the direct solvent extraction of nickel and cobalt from nitrate solution: Aluminum, cobalt, and nickel separation using Cyanex 272, Int. J. Miner. Metall. Mater., 24(2017), No. 1, p. 37. doi: 10.1007/s12613-017-1376-7
[24]	X.Q. Sun, Y. Ji, Y. Liu, J. Chen, and D.Q. Li, An engineering-purpose preparation strategy for ammonium-type ionic liquid with high purity, AIChE J., 56(2009), No. 4, p. 989.
[25]	J.L. Zhang, Z.W. Zhao, X.Y. Chen, and X.H. Liu, Thermodynamic analysis for separation of tungsten and molybdenum in W–Mo–H₂O system, Chin. J. Nonferrous Met., 23(2013), No. 5, p. 1463.
[26]	C. Xiao, L.S. Xiao, Z.Y. Cao, and L. Zeng, Study on removal of tungsten from molybdate solutions, Can. Metall. Q., 54(2015), No. 4, p. 490. doi: 10.1179/1879139515Y.0000000015
[27]	P. Nekovář and D. Schrötterová, Extraction of V(V), Mo(VI) and W(VI) polynuclear species by primene JMT, Chem. Eng. J., 79(2000), No. 3, p. 229. doi: 10.1016/S1385-8947(00)00207-2
[28]	X.Q. Sun, Y. Ji, L.N. Zhang, J. Chen, and D.Q. Li, Separation of cobalt and nickel using inner synergistic extraction from bifunctional ionic liquid extractant (Bif-ILE), J. Hazard. Mater., 182(2010), No. 1-3, p. 447. doi: 10.1016/j.jhazmat.2010.06.052
[29]	Z.H. Li, G.Q. Zhang, W.J. Guan, L. Zeng, L.S. Xiao, Q.G. Li, Z.Y. Cao, and X.Y. Lu, Separation of tungsten from molybdate using solvent extraction with primary amine N1923, Hydrometallurgy, 175(2018), p. 203. doi: 10.1016/j.hydromet.2017.10.018
[30]	A. Davantès, D. Costa, and G Lefèvre, Infrared study of (poly)tungstate ions in solution and sorbed into layered double hydroxides: Vibrational calculations and in situ analysis, J. Phys. Chem. C, 119(2015), No. 22, p. 12356. doi: 10.1021/acs.jpcc.5b01578
[31]	Y.H. Cao, H.J. Wang, H.Z. Liu, and Z.G. Gao, A new process for molybdenum-tungsten extraction from high pressure leaching solution of crude molybdenum–tungsten oxide concentrate, Rare Met. Cem. Carbides, 41(2013), No. 1, p. 17.