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Solvent extraction of silver by LIX® 79: experimental equilibrium study

descriptionPublicationkeyboard_double_arrow_right Article 17 Feb 2004 English Publisher:WileyJournal:Journal of Chemical Technology & Biotechnology, volume 79, pages 306-310 (issn: 0268-2575, eissn: 1097-4660,

Authors: José Luis Cortina; Ana María Sastre; Abdelhay Madi; Francisco José Alguacil;

doi: 10.1002/jctb.991

handle: 10261/36300

Solvent extraction of silver by LIX® 79: experimental equilibrium study

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Abstract

AbstractThe extraction of silver(I) from argentocyanide aqueous cyanide solutions using LIX® 79 has been studied. Different variables that could affect the extraction system were evaluated: equilibration time, aqueous pH, metal and extractant concentrations, and organic phase diluent. The extraction of the Ag(CN)2− complex with respect to other metal‐cyano complexes has also been studied on both synthetic and real leach solutions. Experimental data relating to silver have been analysed numerically to determine the stoichiometry of the extracted species and its equilibrium constant. It was found that silver(I) was extracted into the organic phase by the formation of the species RHAg(CN)2 (LIX 79 = R). Copyright © 2004 Society of Chemical Industry

Related Organizations

Spanish National Research Council
Spain
Cenim - Centro Nacional De Investigaciones Metalurgicas
Spain
Universitat Politècnica de Catalunya
Spain
Polytechnic University of Puerto Rico Miami
United States

Keywords

Silver, LIX 79, Cyanide, Extraction

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