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http://dx.doi.org/10.7844/kirr.2017.26.5.3

Separation of Gold and Silver from Diverse Solutions by Solvent Extraction  

Xing, Weidong (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Lee, Manseung (Department of Advanced Materials Science & Engineering, Institute of Rare Metal, Mokpo National University)
Publication Information
Resources Recycling / v.26, no.5, 2017 , pp. 3-11 More about this Journal
Abstract
Solvent extraction is an important process to recover pure gold and silver from various leaching solutions. The present work reviews the aqueous chemistry and solvent extraction separation of gold (I, III) and silver (I) from several leaching systems such as cyanide, thiocyanate, thiosulfate, thiourea and chloride medium. The extraction and separation behavior of gold (I, III) and silver (I) by various single and mixtures was compared on the basis of extraction reaction and the selectivity from these mediums. The chloride medium is recommended for the separation of gold and silver by solvent extraction in terms of extraction and stripping efficiency.
Keywords
gold; silver; aqueous chemistry; solvent extraction; separation;
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