Extraction Behavior of Scandium Cation in Ion Liquid Extraction System Using 1-Butyl-3-Methyl-Imidazolium Hexafluorophosphate and 2-Ethylhexyl Phosphonic Acid-2-Ethylhexyl Ester

Abstract:

The extraction behavior of scandium ion (Sc³⁺) was investigated using 1-butyl-3-methyl -imidazolium hexafluorophosphate ([Bmim]PF_6­) ionic liquid as extraction solvent and 2-ethylhexyl phosphonic acid-2-ethylhexyl ester (P507, HA) as extractant. The extractablity of Sc3+ using [Bmim]PF_6­ was less than 5% without P507. When the initial P507 concentration in IL phase was 0.2 mol/L, percentage extraction of 5×10^-5 mol·L^-1 Sc³⁺ exceeded 99%. The results showed that the extracted species in the Sc³⁺_­-P507-[Bmim]PF₆ system was neutral ScA₃ and [Bmim]PF₆ solvent could be used repeatedly.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 1524-1527
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.1524
• Online since: August 2011
• Authors: Zhong Wei Pan, Guo Qing Li, Liang Bao Lin
• Keywords: 2-Ethylhexyl Phosphonic Acid-2-Ethylhexyl Ester, Extraction, Ionic Liquid (IL), Sc³⁺

References

[1] T. Welton: Chem. Rev., 99, 2071(1999).

[2] A.J. Carmichael and K.R. Seddon: J. Phys. Org. Chem., 13, 591(2000).

[3] J.L. Kaar, A.M. Jesionowski, J.A. Berberich, R. Moullton and A.J. Russel: J. Am. Chem. Soc., 125, 4125(2002).

[4] S.H. Lee and S.B. Lee: Chem. Commun., 3469(2005).

[5] T.R. Zhan, X.Y. Sun, X.Z. Wang, W. Sun and W. Hou: Talanta, 82(5), 1853(2010).

[6] M. Koel: Critical Rev. in Anal. Chem., 35, 177(2005).

[7] S. Dai, Y.H. Ju and C.E. Barnes: J. Chem. Soc., Dalton Trans., 1201(1999).

[8] S. Chun, S.V. Dzyuba and R.A. Bartsch: Anal. Chem., 73, 3737(2001).

[9] H. Luo, S. Dai and P.V. Bonnesen: Anal. Chem., 76, 2773(2004).

[10] G.T. Wei, Z. Yang and C.J. Chen: Anal. Chim. Acta, 488, 183(2003).

[11] T. Ajioka, S. Oshima, and N. Hirayama: Talanta, 74, 903(2008).

[12] T. Tsukatami, H. Katano, H. Tatsumi, M. Deguchi and N. Hiyarama: Anal. Sci., 22, 199(2006).

[13] J.H. Davis: Chem. Lett., 33, 1072(2004).

[14] Z. Li, J. Chang, H. Shan and J. Pan: Rev. Anal. Chem., 26, 109(2007).

[15] K. Nakashima, F. Kubota, T. Maruyama and M. Goto: Anal. Sci., 19, 1097(2003).

[16] P. Wasserscheid, A. Bosmann and C. Bolm: Chem. Commun., 200(2002).

[17] Z. Marczenko: Spectrophotometric Determination of Elements, Wiley, N.Y. (1976), p.442.

[18] J.Z. Gao, Z.W. Pan, X.Z. Du，J.W. Kang and G.B. Bai: Chinese J. of Anal. Chem., 20(3), 297(1992).

[19] Department of Chemistry, Wuhan University: Analytical Chemistry of Rare Earth Elements, Chapter, 5, Academic Publishers of People's Republic of China(1981).

[20] J.M. Crosthwaite, S.N.V.K. Aki, P. J Maginn and J.P. Brenneche: J. Phys. Chem. B, 108, (5113)(2004).