References

1. A.A. Baba, F.A. Adekola, Beneficiation of a Nigerian sphalerite mineral: solvent extraction of zinc by Cyanex®272 in hydrochloric acid, Hydrometallurgy, 109 (2011) 187–193.
2. C. David, S. Engelbrecht, G.N. Diaz, F.R. Sanchez, A. Belen Mejias, Skorpion Zinc-Lessons Learnt in the Operation of the Modified Zincex Solvent Extraction Process, F.L. Valenzuela, B.A. Moyer, Eds., Proc. XIX International Solvent Extraction Conference (ISEC 2011), Gecamin, Santiago de Chile, 2011, p. 30.
3. D. Dreisinger, F. Xie, T. Glück, K. Marte, Solvent Extraction of Boleo Solutions with Cyanex 272 and Ionquest 290, F.L. Valenzuela, B.A. Moyer, Eds., Proc. XIX International Solvent Extraction Conference (ISEC 2011), Gecamin, Santiago de Chile, 2011, p. 27.
4. E. Vahidi, F. Rashchi, D. Moradkhani, Recovery of zinc from an industrial zinc leach residue by solvent extraction using D2EHPA, Miner. Eng., 22 (2009) 204–206.
5. D.D. Pereira, S.D. Ferreira Rocha, M.B. Mansur, Recovery of zinc sulphate from industrial effluents by liquid-liquid extraction using D2EHPA (di-2-ethylhexylphosphoric acid), Sep. Purif. Technol., 53 (2006) 89–96.
6. J.E. Silva, A.P. Paiva, D. Soares, A. Labrincha, F. Castro, Solvent extraction applied to the recovery of heavy metals from galvanic sludge, J. Hazard. Mater., 120 (2005) 113–118.
7. Y.K.P. Sze, L. Xue, Extraction of zinc and chromium(III) and its application to treatment of alloy electroplating wastewater, Sep. Sci. Technol., 38 (2003) 405–425.
8. I. Ortiz, E. Bringas, M.F. San Roman, A. Urtiaga, Selective separation of zinc and iron from spent pickling solutions by membrane-based solvent extraction: process viability, Sep. Sci. Technol., 39 (2004) 2441–2455.
9. M. Regel-Rosocka, A review of methods of regeneration of spent pickling solutions from steel processing, J. Hazard. Mater., 177 (2010) 57–69.
10. M. Tian, F. Mu, Q. Jia, X. Quan, W. Liao, Solvent extraction studies of zinc(II) and cadmium(II) from chloride medium with mixtures of neutral organophosphorus extractants and amine extractants, J. Chem. Eng. Data, 56 (2011) 2225–2229.
11. F.J. Alguacil, I. Garcia-Diaz, F.A. Lopez, O. Rodríguez, A. Urien, I. Padilla, in: J. Mun, H. Sim, Eds., Handbook of Ionic Liquids: Properties, Applications and Hazards, Nova Science Publ., New York, 2012, pp. 257–280 (Chapter 10).
12. L. Bulgariu, D. Bulgariu, The partition behaviour of Zn(II) using halide ions extractants in aqueous PEG-based two-phase systems, Sep. Sci. Technol., 42 (2007) 1093–1106.
13. A.P. de los Rios, F.J. Hernandez-Fernandez, L.J. Lozano, S. Sanchez, J.L. Moreno, C. Godinez, Removal of metal ions from aqueous solutions by extraction with ionic liquids, J. Chem. Eng. Data, 55 (2010) 605–608.
14. A.P. de los Rios, F.J. Hernandez-Fernandez, F.J. Alguacil, L.J. Lozano, A. Ginesta, I. Garcia-Diaz, S. Sanchez-Segado, F.A. Lopez, C. Godinez, On the use of imidazolium and ammonium-based ionic liquids as green solvents for the selective recovery of Zn(II), Cd(II), Cu(II), and Fe(III) from hydrochloride aqueous solutions, Sep. Purif. Technol., 97 (2012) 150–157.
15. M. Regel-Rosocka, Extractive removal of zinc(II) from chloride liquors with phosphonium ionic liquids/toluene mixture as novel extractants, Sep. Purif. Technol., 66 (2009) 19–24.
16. M. Regel-Rosocka, M. Wisniewski, Selective removal of zinc(II) from spent pickling solutions in the presence of iron ions with phosphonium ionic liquid Cyphos IL 101, Hydrometallurgy, 110 (2011) 85–90.
17. A. Urtiaga, E. Bringas, R. Mediavilla, I. Ortiz, The role of liquid membranes in the selective separation and recovery of zinc for the regeneration of Cr(III) passivation baths, J. Membr. Sci., 356 (2010) 88–95.
18. N. Diban, V. Garcia, F. Alguacil, I. Ortiz, A. Urtiaga, Temperature enhancement of zinc and iron separation from chromium(III) passivation baths by emulsion pertraction technology, Ind. Eng. Chem. Res., 51 (2012) 9867–9874.
19. G.M. Ritcey, A.W. Ashbrook, Solvent Extraction: Principles and Applications to Process Metallurgy. Part II, Elsevier, Amsterdam, 1979.
20. N. Diban, R. Mediavilla, A. Urtiaga, I. Ortiz, Zinc recovery and water sludge minimization from chromium passivation baths, J. Hazard. Mater., 192 (2011) 801–807.