MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Separation of Silver (I) and Zinc(II) from Nitrate Solutions by Solvent Extraction with LIX63
Pan-Pan SunByoung-Jun MinSung-Tae KimSung-Yong Cho
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2017 Volume 58 Issue 2 Pages 287-290

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Abstract

The separation of Ag(I) and Zn(II) from nitrate solutions using 5,8-diethyl-7-hydroxy-dodecan-6-oxime (LIX63) as the extractant was investigated as a function of nitric acid (HNO3) and extractant concentrations. Selective extraction of Ag(I) over Zn(II) was achieved with LIX63 when HNO3 concentration was in the range 0.001–1 mol/dm3. Quantitative stripping of Ag(I) from loaded LIX63 was accomplished using 5 mol/dm3 of HNO3. The McCabe-Thiele diagrams for the extraction and stripping of Ag(I) with LIX63 were constructed, and the results were verified by simulated cross-current extraction and stripping experiments. Finally, Ag(I) and Zn(II) solutions of high purity (> 99.95%) were obtained.

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© 2017 The Japan Institute of Metals and Materials
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