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Vol. 27 No. 9 (2015): Vol 27 Issue 9

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Separation of Palladium from Hydrochloric Acid Medium Using Microspheres Containing Octyl Benzoxazolyl Sulfoxide

https://doi.org/10.14233/ajchem.2015.18881
Jinfei Li
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Yan Liu
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Zhangjie Huang
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Faju Zong
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China
Mansong Xi
Department of Chemistry, Yunnan University, Kunming 650091, P.R. China

Corresponding Author(s) : Zhangjie Huang

zhjhuang@ynu.edu.cn

Asian Journal of Chemistry, Vol. 27 No. 9 (2015): Vol 27 Issue 9

Abstract

The separation of Pd(II) from hydrochloric acid medium was carried out using the microsphere containing octyl benzoxazolyl sulfoxide as sorbent. The sorption was found to be fast and the equilibrium was reached within 8 min. When the concentrations of Pd(II) and Pt(IV) were 100 mg L-1, nearly all of the Pd(II) (> 99 %) was adsorbed by the microspheres, on the contrary, the one of Pt(IV) was adsorbed was lower (1.8 %) in 0.1 mol L-1 HCl medium. Palladium(II) and Pt(IV) can be separated efficiently at a lower acidity. The sorbed Pd(II) ions were desorbed with 0.4 mol L-1 thiourea solution. Palladium(II) could be separated completely from a stock solution containing Pt(IV), Cu(II), Fe(III), Zn(II), Co(II) and Ni(II) impurities. Separation coefficient of Pd(II) and Pt(IV) reached 5.4 × 103 using the optimal separation parameters. Kinetic parameters for Pd(II) adsorption on the microsphere were examined. Experimental data was found to be in good agreement with pseudo-second-order kinetics.

Keywords

Palladium Separation Microspheres Octyl benzoxazolyl sulfoxide
Li, J., Liu, Y., Huang, Z., Zong, F., & Xi, M. (2015). Separation of Palladium from Hydrochloric Acid Medium Using Microspheres Containing Octyl Benzoxazolyl Sulfoxide. Asian Journal of Chemistry, 27(9), 3415–3419. https://doi.org/10.14233/ajchem.2015.18881
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