Tendencias recientes en la extracción de metales

M. Regel-Rosocka; F. J. Alguacil

doi:10.3989/revmetalm.1344

Authors

M. Regel-Rosocka Institute of Chemical Technology and Engineering, Poznan Universtity of Technology
F. J. Alguacil Centro Nacional de Investigaciones Metalurgicas (CENIM-CSIC)

DOI:

https://doi.org/10.3989/revmetalm.1344

Keywords:

Liquid-liquid extraction, Metals, Extractants, Ionic liquids, Caesium

Abstract

After near 70 years of practical usage, solvent extraction is a perfectly mastered technique of separation, widely used on an industrial scale for the separation of metals mainly from raw materials. However, currently, in the era of depleting natural resources and increasingly less accessible deposits, environmental restrictions, etc., an increasing interest, both from social and economical constrains, is being directed at the extraction of metals from the secondary sources (such as batteries, electronic scrap). In many cases, solvent extraction, due to its operational characteristics, can be considered as the Best Available Technology for the purpose of separating multielemental metal solutions. This paper provides a brief overview of past achievements and present scenario of solvent extraction investigations and developments, describing some recently commissioned solvent extraction plants, whereas the Skorpion Zinc plant (Namibia) for zinc extraction from raw materials and caesium removal from radioactive High Level Wastes (HLWs) are told over in detail as case studies. The paper also presents some proposals for the use of liquid-liquid extraction to separate metal ions from secondary sources (e.g. cobalt from industrial waste streams). The review highlights the emerging use of ionic liquids as new extractants for metals, providing an insight into this exciting research field. Despite its detractors, solvent extraction has entered in force into XXI century as a leading separation technology for metals.

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References

[1] G.M. Ritcey, Tsinghua Sci. Technol. 11 (2006) 137-152. http://dx.doi.org/10.1016/S1007-0214(06)70168-7

[2] J. Szymanowski, Selected physicochemical aspects of metal ion removal, Monographic and specialist lectures "Membranes Theory and Practice", Ed. R. Wódzki, Nicolaus Copernicus University, Toru, Poland, 2003, pp. 30-46.

[3] M. Regel-Rosocka and M. Wi’sniewski, Applications of ionic liquids in science and technology. Ed. S.T. Handy, INTECH, Croatia, 2011, pp. 375-398.

[4] K.G. Fisher, Proc. 6th Southern African Base Metals Conference, The Southern African Institute of Mining and Metallurgy, 2011, pp. 237-257. PMid:21820136 PMCid:PMC3213288

[5] G.A. Kordosky, SAIMM November/December (2002) 445-450.

[6] L. Kolver, Camec to build multimillion-dollar SX plant in DRC, Base Metals, online access: http://www.miningweekly.com/article/camec-tobuild- multimilliondollar-sx-plant-in-drc-2008- 07-25 (27.06.2013).

[7] J. Chadwick, International Mining (2008) 8-16.

[8] http://www.shalinaresources.com/cusx-ewplant. aspx (28.06.2013).

[9] http://www.centralasiametals.com/projects/kounrad/ (28.06.2013)

[10] R. Hernández, F. Pino, J. Roco, P. Amigo, P. E. Thompsen and M. Ferrera, Proc. XIXth International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela, B.A. Moyer, Gecamin, Santiago de Chile, Chile, 2011, p. 20.

[11] http://www.mining-technology.com/projects/boleoproject/ (02.07.2013).

[12] C.Y. Cheng, Hydrometallurgy 84 (2006) 109-117. http://dx.doi.org/10.1016/j.hydromet.2006.05.002

[13] D. Dreisinger, J. South African Inst. Mining Metall. 109 (2009) 253-271.

[14] D. Dreisinger, T. Glu.ck, K. Marte, R. Hamm, R. Molnar, J. Lu and F. Xie, Proc. Lead-Zinc Symposium, Eds. A. Siegmund, L. Centomo, C. Ginnen, N. Piret, G. Richards and R. Stephens, TMS, Wiley Eds., 2010, pp. 623- 636.

[15] D. Dreisinger, F. Xie, T. Glu.ck and K. Marte, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L.Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 22.

[16] D. Dreisinger, F. Xie, T. Glu.ck and K. Marte, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 27.

[17] C. Fleming, SGS Minerals Services, Technical Bulletin 01 (2002) 1-5.

[18] D. Dreisinger, W. Murray, D. Hunter, K. Baxter, M. Wardell-Johnson, A. Langley, J. Liddicoat, C. Fleming, J. Ferron, A. Mezei, J. Brown, R. Molnar and D. Imeson, SGS Minerals Services, Technical Bulletin 06 (2006) 1-13.

[19] C.J. Ferron, C.A. Fleming, P.T. O'Kane and D. Dreisinger, SME Annual Meeting and Exhibit, February 26-28, Denver, Colorado, 2001, pp. 1-9.td class="resultB">

[20] I. Mihaylov, E. Krause, D.F. Colton, Y. Okita, J.P. Duterque and J.J. Perraud, CIM Bull. 93 (2000) 124-130.

[21] G. Bacon and I. Mihaylov, SAIMM November/ December (2002) 435-444.

[22] M.G. King, JOM (2005) 35-39. http://dx.doi.org/10.1007/s11837-005-0250-7

[23] K.R. Barnard, Hydrometallurgy 103 (2010) 190-195. http://dx.doi.org/10.1016/j.hydromet.2010.03.018

[24] P.M. Cole and A.M. Feather, Proc. International Solvent Extraction Conference, ISEC 2008, Ed. B.A. Moyer, Tucson, Arizona, EE.UU., 2008, pp. 131-136.

[25] P.M. Cole and K.C. Sole, Miner. Process. Extr. Metall. Rev. 24 (2003) 91-137. http://dx.doi.org/10.1080/08827500306897

[26] http://www.skorpionzinc.com.na/index.php?/About-Skorpion/operatiions.html (06.02.2012).

[27] H. Fuls, K.C. Sole and T. Bachmann, Proc. International Solvent Extraction Conference, ISEC 2005, Beijing, China, 2005, pp. 1223- 1228.

[28] J. Gnoinski, Skorpion Zinc: optimisation and innovation, Proc. 4th Southern African Conference on Base Metals, Namibia, 2007, pp. 329-342.

[29] J. Gnoinski, K.C. Sole, D.R. Swart, R.F.Maluleke, G.N. Díaz and F. Sánchez, Proc. International Solvent Extraction Conference, ISEC 2008, Ed. B.A. Moyer, Tucson, Arizona, EE.UU., 2008, pp. 201-207.

[30] J.M. Musadaidzwa and E.I. Tshiningayamwe, J. South African Inst. Mining Metall. 109 (2009) 691-695.

[31] R.W.A. Crowe, The Skorpion Zinc project, Southern Namibia, Report No. 119.2000, Perth 2000.

[32] C. David, S. Engelbrecht, G.N. Díaz, F.R. Sánchez, A. Belen Mejias, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 30.

[33] K.R. Barnard and M.N. Tsuntsaeva, Solvent Extr. Ion Exch. 30 (2012) 566-578. http://dx.doi.org/10.1080/07366299.2012.671112

[34] R. Halford and K.R. Barnard, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 16.

[35] K.R. Barnard, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 162.

[36] G. Cote, Solvent Extr. Ion Exch. 18 (2000) 703- 727. http://dx.doi.org/10.1080/07366290008934704

[37] J. Hakkarainen, A. Villarroel, A. Sotomayor, C. Rodríguez and R. Dellarossa, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 19.

[38] H. Hein and P. Joly, Proc. XIXth International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, Chile, 2011, p. 8.

[39] W.A. Rickelton, A.J. Robertson and J.H. Hillhouse, Solvent Extr. Ion Exch. 9 (1991) 73-84. http://dx.doi.org/10.1080/07366299108918043

[40] Bateman project profile, Inco's Goro Nickel solvent-extraction plant, accessible online at: http://www.bateman-litwin.com/files/bateman/download/151120053513332.pdf (13.05.2013).

[41] Horsehead Holding Corp., Investor Presentation, August 2012, available online at: www.horsehead.net/downloadAttachmentNDO.pdf (24.06.2013).

[42] G.N. Díaz, D. Martín, F.R. Sánchez and S. Sanguilinda, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, p. 17.

[43] E. Alberts and C. Dorfling, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, Chile, 2011, p. 37.

[44] W. Weiwei, W. Xianglan, M. Shulan, L. Hongfei and L. Dequian, J. Rare Earths 24 (2006) 685-689. http://dx.doi.org/10.1016/S1002-0721(07)60009-X

[45] J.F. Dozol and R. Ludwig, Extraction of radioactive elements by calixarenes, in: Ion Exchange and Solvent Extraction, Vol.19, Ed. B.A. Moyer, CRC Press, Boca Raton, F.L., 2010, pp. 195-318.

[46] E. Makrlik, P. Va-ura and P. Selucky, J. Radioanal. Nucl. Chem. 287 (2011) 981-985. http://dx.doi.org/10.1007/s10967-010-0855-3

[47] E. Makrlik, P. Va-ura and P. Selucky, J. Radioanal. Nucl. Chem. 288 (2011) 429-233. http://dx.doi.org/10.1007/s10967-010-0940-7

[48] A. Dash, R. Ram, Y.A. Pamale, A.S. Deodhar and M. Venkatesh, Sep. Sci. Technol. 47 (2012) 81-88. http://dx.doi.org/10.1080/01496395.2011.614317

[49] P.K. Mohapatra, P.S. Dhami, S. Panja, P. Jagasia, S.C. Tripathi, P.K. Dey and V.K. Manchanda, Desalin. Water Treat. 38 (2012) 59-64. http://dx.doi.org/10.1080/19443994.2012.664265

[50] P.R. Vasudeva Rao, K.A. Venkatesan, A. Rout, T.G. Srinivasan and K. Nagarajan, Sep. Sci. Technol. 47 (2012) 204-222. http://dx.doi.org/10.1080/01496395.2011.628733

[51] C. Xu, J. Wang and J. Chen, Solvent Extr. Ion Exch. 30 (2012) 623-650. http://dx.doi.org/10.1080/07366299.2012.700579

[52] R.A. Leonard, S.B. Aase, H.A. Arafat, C. Conner, D.B. Chamberlain, J.R. Falkenberg, M.C. Regalbuto and G.F. Vandegrift, Solvent Extr. Ion Exch. 21 (2003) 505-526. http://dx.doi.org/10.1081/SEI-120022518

[53] P.V. Bonnesen, L.H. Delmau, B.A. Moyer and R.A. Leonard, Solvent Extr. Ion Exch. 21 (2003) 141-170. http://dx.doi.org/10.1081/SEI-120018944

[54] L.H. Delmau, P.V. Bonnesen and B.A. Moyer, Hydrometallurgy 72 (2004) 9-19. http://dx.doi.org/10.1016/S0304-386X(03)00120-8

[55] L.H. Delmau, T.J. Lefranc, P.V. Bonnesen, J.C. Bryan, D.J. Presley and B.A. Moyer, Solvent Extr. Ion Exch. 23 (2005) 23-57. http://dx.doi.org/10.1081/SEI-200044379

[56] K.L. Swancutt, T.D. Cullen, S.P. Mezyk, G. Elias, W.F. Bauer, R.D. Ball, D.R. Peterman, C.L. Riddle, B.J. Mincher and J.J. Muller, Solvent Extr. Ion Exch. 29 (2011) 106-127. http://dx.doi.org/10.1080/07366299.2011.539151

[57] B.A. Moyer, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, 2011, plenary lecture.

[58] A.M. Sastre, A. Madi, J.L. Cortina and F.J. Alguacil, J. Chem. Tech. Biotechnol. 74 (1999) 310-314. http://dx.doi.org/10.1002/(SICI)1097-4660(199904)74:4<310::AID-JCTB33>3.0.CO;2-Y

[59] L.H. Delmau, T.J. Haverlock, E. Bazelaire, P.V. Bonnesen, M.E. Ditto and B.A. Moyer, Solvent Extr. Ion Exch. 27 (2009) 172-198. http://dx.doi.org/10.1080/07366290802672394

[60] L.H. Delmau, J.F. Birdwell, J. McFarlane and B.A. Moyer, Solvent Extr. Ion Exch. 28 (2010) 19-48. http://dx.doi.org/10.1080/07366290903408433

[61] B.A. Moyer, P.V. Bonnesen, L.H. Delmau, V. Frederick, J. Sloop, N.J. Williams, F. Joseph, J. Birdwell, D.L. Lee, R.A. Leonard, S.D. Fink, T.B. Peters and M.W. Geeting. WM2011 Conference, Phoenix AZ, 2011.

[62] D.R. Raut, P.K. Mohapatra, S.A. Ansari and V.K. Manchanda, Sep. Sci. Technol. 44 (2009) 3664-3678. http://dx.doi.org/10.1080/01496390903183352

[63] V.A. Babain, Simultaneously removal of radionuclides by extractant mixtures, in: Ion Exchange and Solvent Extraction, Vol. 19, Ed. B.A. Moyer, CRC Press, Boca Raton, F.L., 2010, pp. 359-380.

[64] A. Fornalczyk and M. Saternus, Metalurgija 48 (2009) 133-136.

[65] D. Martín, G. Díaz, M.A. García and F. Sánchez, J. South African Inst. Mining Metall. 102 (2002) 463-468.

[66] D. Martín, M.A. García, G. Díaz and J. Falgueras, Proc. International Solvent Extraction Conference, ISEC 1999, Barcelona, 2000, pp. 201-206.

[67] http://www.ecoren.pl/2857.xml (06.02.2013).

[68] L. Gotfryd, M. Kwarciski, A. Chmielarz, A. Olejnik and Z. Gagat, Technology of purification of crude nickel sulphate, Institute of Non-ferrous Metals, http://www.pi.gov.pl/ppp/chapter_95131.asp (06.02.2013).

[69] L. Gotfryd, Przem. Chem. 85 (2006) 810-813.

[70] J. Hensler, International Zinc Conference, Rancho Mirage, California, EE.UU., 2012.

[71] C. Frias, International Mining (2009) 28-29.

[72] C. Frias, G. Díaz, N. Oca-a and J.I. Lozano, Min. Eng. 15 (2002) 877-878. http://dx.doi.org/10.1016/S0892-6875(02)00126-7

[73] Dowa Group to Bring Zinc Dust Recycling Plant into Full Operation This Summer, Japan Metal Bull. (2011), available online at: http://www.japanmetalbulletin.com/?p=2859 (01.10.2012).

[74] S. Virolainen, D. Ibana and E. Paatero, Hydrometallurgy 107 (2011) 56-61. http://dx.doi.org/10.1016/j.hydromet.2011.01.005

[75] B. Mokhtari, K. Pourabdollah and N. Dallali, J. Radioanal. Nucl. Chem. 287 (2011) 921- 934. http://dx.doi.org/10.1007/s10967-010-0881-1

[76] H. Kantekın, M.B. Kiliçaslan, F. A.••A˘gin, H. Alp and Ü. Ocak, J. Coordin. Chem. 63 (2010) 1921- 1932. http://dx.doi.org/10.1080/00958972.2010.494303

[77] P.A. Tasker, C.C. Tong and A.N. Westra, Coordin. Chem. Rev. 251 (2007) 1868-1877. http://dx.doi.org/10.1016/j.ccr.2007.03.014

[78] G. Dias Rodrigues, M.C.H. da Silva, L.H.Mendes da Silva, F.J. Paggioli, L.A. Minim and J.S. dos Reis Coimbra, Sep. Purif. Technol. 62 (2008) 687-693. http://dx.doi.org/10.1016/j.seppur.2008.03.032

[79] L. Bulgariu and D. Bulgariu, Sep. Sci. Technol. 42 (2007) 1093-1106. http://dx.doi.org/10.1080/01496390601174307

[80] V.G. Lacerda, A.B. Mageste, I.J. Boggione Santos, L.H. Mendes da Silva and M.C.H. da Silva, J. Power Sources 193 (2009) 908-913. http://dx.doi.org/10.1016/j.jpowsour.2009.05.004

[81] K. Shimojo and M. Goto, Anal. Chem. 76 (2004) 5039-5044. http://dx.doi.org/10.1021/ac049549x PMid:15373439

[82] K. Nakashima, F. Kubota, T. Maruyama and M. Goto, Ind. Eng. Chem. Res. 44 (2005) 4368- 4372. http://dx.doi.org/10.1021/ie049050t

[83] M.P. Jensen, J.A. Dzielawa, P. Rickert and M.L. Dietz, J. Am. Chem. Soc. 124 (2002) 10664-10665. http://dx.doi.org/10.1021/ja027476y PMid:12207515

[84] A.E. Visser, R.P. Swatlowski, W.M. Reichert, S.T. Griffin and R.D. Rogers, Ind. Eng. Chem. Res. 39 (2000) 3596-3604. http://dx.doi.org/10.1021/ie000426m

[85] X.L. Wang, J. Chen and D. Li, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F. L. Valenzuela and B. A. Moyer, Santiago de Chile, Chile, 2011, p. 218.

[86] Y. Shen, S. Wang, L. Zhu, J. Wang and W. Wu, Ind. Eng. Chem. Res. 50 (2011) 13990- 13996. http://dx.doi.org/10.1021/ie102512m

[87] S. Panja, P.K. Mohapatra, S.C. Tripathi, P.M. Ghandi and P. Janardan, Sep. Purif. Technol. 96 (2012) 289-295. http://dx.doi.org/10.1016/j.seppur.2012.06.015

[88] Z. Pan, C. Ma, H. Zhou, T. Lian, C. Lai and C. Li, Appl. Mech. Mater. 117-119 (2012) 1103-1106. http://dx.doi.org/10.4028/www.scientific.net/AMM.117-119.1103

[89] A.E. Visser, R.P. Swatlowski, W.M. Reichert, R. Mayton, S. Sheff, A. Wierzbicki, J.H. Davis and R.D. Rogers, Chem. Commun. (2001) 135-136. http://dx.doi.org/10.1039/b008041l

[90] P. Giridhar, K.A. Venkatesan, T.G. Srinivasan and P.R. Vasudewa Rao, J. Nucl. Radiochem. Sci. 5 (2004) 17-20.

[91] C.J. Bradaric, A. Downard, C. Kennedy, A.J. Robertson and Y. Zhou, Green Chem. 5 (2003) 143-152. http://dx.doi.org/10.1039/b209734f

[92] A. Cieszy’nska, M. Regel-Rosocka and M.Wi’sniewski, Pol. J. Chem. Technol. 2 (2007) 99-101.

[93] A. Cieszy´nska and M. Wi´sniewski, Sep. Purif. Technol. 80 (2011) 385–389. http://dx.doi.org/10.1016/j.seppur.2011.05.025

[94] A. Cieszy´nska, M. Wi´sniewski, Hydrometallurgy 113-114 (2012) 79-85. http://dx.doi.org/10.1016/j.hydromet.2011.12.006

[95] M. Regel-Rosocka, Sep. Purif. Technol. 66 (2009) 19-24. http://dx.doi.org/10.1016/j.seppur.2008.12.002

[96] M. Regel-Rosocka and M. Wisniewski, Hydrometallurgy 110 (2011) 85-90. http://dx.doi.org/10.1016/j.hydromet.2011.08.012

[97] P. Rybka and M. Regel-Rosocka, Sep. Purif. Technol. 47 (2012) 1296-1302.

[98] M. Fuerhacker, T.M. Haile, D. Kogelnig, A. Stojanovic and B. Keppler, Water Sci. Technol. 65 (2012) 1765-1773. http://dx.doi.org/10.2166/wst.2012.907 PMid:22546790

[99] F.J. Alguacil, I. García-Díaz, F.A. López, O. Rodríguez, A. Urien and I. Padilla, Ionic liquids and smart separations technology for metal removal from wastewaters, Chapter 9, Handbook of Ionic Liquids, Eds. J. Mun and H. Sim, Nova Science Publishers, 2011.

[100] P.R. Vasudeva Rao, K.A. Venkatesan, A. Rout, T.G. Srinivasan and K. Nagarajan, Sep. Sci. Technol. 47 (2012) 201-222. http://dx.doi.org/10.1080/01496395.2011.628733

[101]D.D. Patel and J.M. Lee, Chem. Record 12 (2012) 329-355. http://dx.doi.org/10.1002/tcr.201100036 PMid:22711528

[102] J. Pernak, Przem. Chem. 82 (2003) 521-524.

[103] M. Kosmulski, K. Marczewska-Boczkowska and C. Saneluta, Przem. Chem. 81 (2002) 106-110.

[104] I. Billard, A. Ouadi and C. Gaillard, Anal. Bioanal. Chem. 400 (2011) 1555-1566. http://dx.doi.org/10.1007/s00216-010-4478-x PMid:21203752

[105]A.P. Abbott, G. Frisch, J. Hartley and K.S. Ryder, Green Chem. 13 (2011) 471-481. http://dx.doi.org/10.1039/c0gc00716a

[106]A. Stojanovic and B. K. Keppler, Sep. Sci. Technol. 47 (2012) 189-203. http://dx.doi.org/10.1080/01496395.2011.620587

[107]K.R. Seddon, A. Stark and M.J. Torres, Pure Appl. Chem. 72 (2000) 2275-2287. http://dx.doi.org/10.1351/pac200072122275

[108]L.J. Lozano, C. Godínez, A.P. de los Ríos, F.J.Hernández-Fernández, S. Sánchez-Segado and F.J. Alguacil, J. Membr. Sci. 376 (2011) 1-14. http://dx.doi.org/10.1016/j.memsci.2011.03.036

[109] A. Rout, S. Karmakar, K.A. Venkatesan, T.G. Srinivasan and P.R. Vasudeva Rao, Sep. Purif. Technol. 81 (2011) 109-115. http://dx.doi.org/10.1016/j.seppur.2011.04.033

[110] A. Rout, K.A. Venkatesan, T.G. Srinivasan and P.R. Vasudeva Rao. Sep. Purif. Technol. 95 (2012) 26-31. http://dx.doi.org/10.1016/j.seppur.2012.04.020

[111] A. Sengupta, P.K. Mohapatra, M. Iqbal, J. Huskens and W. Verboom, Dalton Trans. 41 (2012) 6970-6979. http://dx.doi.org/10.1039/c2dt12364a PMid:22532066

[112] T.J. Bell and Y. Ikeda, Dalton Trans. 41 (2012) 4303-4305. http://dx.doi.org/10.1039/c2dt30089c PMid:22382888

[113] A. Pérez de los Ríos, F.J. Hernández-Fernández, S. Sánchez-Segado, L.J. Lozano, J.I. Moreno and C. Godinez, Chem. Eng. Transactions 21 (2010) 625-630.

[114] A. Pérez de los Ríos, F.J. Hernández-Fernández, F.J. Alguacil, L.J. Lozano, A. Ginestá, I. García-Díaz, S. Sánchez-Segado, F.A. López and C. Godínez, Sep. Purif. Technol. 97 (2012) 150-157. http://dx.doi.org/10.1016/j.seppur.2012.02.040

[115] M.T. Coll, A. Fortuny, C.S. Kedari and A.M. Sastre, Hydrometallurgy 125-126 (2012) 24-28. http://dx.doi.org/10.1016/j.hydromet.2012.05.003

[116] L. Kejun, W.T. Yen, A. Shibayama, T. Miyazaki and T. Fujita, Hydrometallurgy 73 (2004) 41-53. http://dx.doi.org/10.1016/j.hydromet.2003.07.007

[117] T. Sato, T. Takayanagi and K. Sato, Solvent Extr. Res. Dev., Japan 17 (2010) 95-110.

[118] B. Wionczyk, Solvent Extr. Ion Exch. 27 (2009) 423-446. http://dx.doi.org/10.1080/07366290902821271

[119] P. Giridhar, K.A. Venkatesan, T.G. Srinivasan and P.R. Vasudeva Rao, Hydrometallurgy 81 (2006) 30-39. http://dx.doi.org/10.1016/j.hydromet.2005.10.001

[120] M. Srncik, D. Kogelnig, A. Stojanovic, W. Körner, R. Krachler and G. Wallner, Appl. Radiat. Isotopes 67 (2009) 2146-2149. http://dx.doi.org/10.1016/j.apradiso.2009.04.011 PMid:19477136

[121] D. Kogelnig, A. Stojanovic, M. Galanski, M.Groessl, F. Jirsa, R. Krachler and B.K. Keppler, Tetrahedron Lett. 49 (2008) 2782-2785. http://dx.doi.org/10.1016/j.tetlet.2008.02.138

[122] Alok Rout, K.A. Venkatesan, T.G. Srinivasan and P.R. Vasudeva Rao, Sep. Purif. Technol. 95 (2012) 26-31. http://dx.doi.org/10.1016/j.seppur.2012.04.020

[123] H. Yang, W. Wang, H. Cui, D. Zhang, Y. Liua and J. Chen, J. Chem. Technol. Biotechnol. 87 (2012) 198-205. http://dx.doi.org/10.1002/jctb.2696

[124] A. Stojanovic, D. Kogelnig, L. Fischer, S. Hann, M. Galanski, M. Groessl, R. Krachler and B.K. Keppler, Aust. J. Chem. 63 (2010) 511- 524. http://dx.doi.org/10.1071/CH09340

[125] B. Galán, D. Casta-eda and I. Ortiz, Water Res. 39 (2005) 4317-4324. http://dx.doi.org/10.1016/j.watres.2005.08.015 PMid:16221483

[126] F.J. Alguacil, M. Alonso, F.A. López, A. López- Delgado, I. Padilla and H. Tayibi, Chem. Eng. J. 157 (2010) 366–372. http://dx.doi.org/10.1016/j.cej.2009.11.016

[127] R.E. Del Sesto, C. Corely, A. Robertson and J.S. Wilkes, J. Organometal. Chem. 690 (2005) 2536-2542. http://dx.doi.org/10.1016/j.jorganchem.2004.09.060

[128] A.N. Turanov, V.K. Karndashev, V.E. Baulin, Russ. J. Inorg. Chem. 53 (2008) 970-975. http://dx.doi.org/10.1134/S0036023608060272

[129] D. Kogelnig, A. Stojanovic, F. Jirsa, W. Körner, R. Krachler and B.K. Keppler, Sep. Purif. Technol. 72 (2010) 56-60. http://dx.doi.org/10.1016/j.seppur.2009.12.028

[130] V. Gallardo, R. Navarro, I. Saucedo, M. Ávila and E. Guibal, Sep. Sci. Technol. 43 (2008) 2434-2459. http://dx.doi.org/10.1080/01496390802119002

[131] E. Guibal, K. Gavilan Campos, P. Bunio, T. Vincent and A. Trochimczuk, Sep. Sci. Technol. 43 (2008) 2406-2433. http://dx.doi.org/10.1080/01496390802118970

[132] K. Campos, T. Vincent, P. Bunio, A. Trochimczuk and E. Guibal, Solvent Extr. Ion Exch. 26 (2008) 570-601. http://dx.doi.org/10.1080/07366290802301572

[133] S. Katsuta, Y. Yoshimoto, M. Okai, Y. Takeda and K. Bessho, Ind. Eng. Chem. Res. 50 (2011) 12735-12740. http://dx.doi.org/10.1021/ie201310v

[134] J. M. Lee, Fluid Phase Equilibria 319 (2012) 30-36. http://dx.doi.org/10.1016/j.fluid.2012.01.033

[135] M.T. Coll, I. García-Díaz, A. Fortuny, F.A. López, A.M. Sastre and F.J. Alguacil, Proc. International Solvent Extraction Conference, ISEC 2011, Eds. F.L. Valenzuela and B.A. Moyer, Gecamin, Santiago de Chile, Chile, 2011, p. 220.

[136] D. de Agreda, I. García-Díaz, F.A. López and F.J. Alguacil, Rev. Metal. 47 (2011) 146-168. http://dx.doi.org/10.3989/revmetalmadrid.1062

[137] I. Padilla, I. García-Díaz, A. Urien, O. Rodríguez, F. López and F.J. Alguacil, Desalin. Water Treat. 40 (2012) 282–297. http://dx.doi.org/10.1080/19443994.2012.671265