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http://dx.doi.org/10.3365/KJMM.2010.48.10.929

Solvent Extraction of Sn(IV) from Hydrochloric Acid Solution by Alamine 336  

Ahn, Jae-Woo (Dept. of Advanced Materials Science & Engineering, Daejin University)
Seo, Jae-Seong (Dept. of Advanced Materials Science & Engineering, Daejin University)
Lee, Man-Seung (Dept. of Advanced Materials Science & Engineering, Mokpo National University)
Publication Information
Korean Journal of Metals and Materials / v.48, no.10, 2010 , pp. 929-935 More about this Journal
Abstract
The solvent extraction behavior of Sn(IV) from hydrochloric acid was investigated using Alamine336 (Tri-n-cotylamine) as an extractant. The experimental parameters of the concentration of the HCl solution, chloride ions, extractant, and Sn(IV) were assessed. The results showed that the extraction percentage of Sn(IV) was more than 95% in our experimental range and was only slightly affected by the HCl concentration. The extraction reaction of Sn(IV) by Alamine 336 from the chloride solution was identified as follows: $SnCl_6{^{2-}}+2R_3NHCl_{(org)}=(R_3NH)_2SnCl_{6(org)}+2Cl^-$ and $K=6.3{\times}10^4$. Stripping experiments of Sn(IV) from the loaded organic phase were done by using several stripping agents. A stripping percentage of 90% was obtained with a 2.0 M NaOH solution.
Keywords
solvent extraction; Alamine336; tin; HCl; stripping;
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Times Cited By KSCI : 3  (Citation Analysis)
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