Separation of platinum(IV) and rhodium(III) from acidic chloride solution by ion exchange with anion resins

被引:24
|
作者
Sun, P. P. [1 ]
Lee, J. Y. [2 ]
Lee, M. S. [1 ]
机构
[1] Mokpo Natl Univ, Dept Adv Mat Sci & Engn, Chungnam 534729, South Korea
[2] Korea Inst Geosci & Mineral Resources, Met Recovery Dept, Minerals Resources Res Div, Taejon 305350, South Korea
关键词
Plarinum(IV); Rhodium(III); AG1; resin; HCl; Ion exchange; GROUP METALS; EXTRACTION; RECOVERY; PALLADIUM; RH(III); PT(IV); PD(II);
D O I
10.1016/j.hydromet.2011.12.009
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Ion exchange experiments have been done to separate Pt(IV) and Rh(III) from chloride solution. Loading of the two metals into anion exchange resins, such as AG1-x2. AG1-x8 and AGMP-1 resin, was investigated in the HCl concentration range from 0.1 to 5 M. The concentration ratio of Pt and Rh in the chloride solution was fixed at 10:1. It was found that the loading of Pt into the resins followed Langmuir isotherm. The resins employed in this study had selectivity for Pt over Rh. The concentration of HCl had a pronounced effect on the loading of the two metals and Pt was effectively separated from Rh at low concentration of HCl. Batch experiments indicated that AG1-x8 resin was the most effective in separating Pt and Rh in our range. Continuous experiments with AG1-x8 resin verified that complete separation of Pt from Rh was possible. The loaded AG1-x8 resin was successfully regenerated by elution with thiourea. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:200 / 204
页数:5
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