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Gold recovery from very dilute solutions from a mine in closing process: adsorption-desorption onto carbon materials

dc.contributor.authorVences Alvarez, Esmeralda
dc.contributor.authorRazo Flores, Elías
dc.contributor.authorLázaro, Isabel
dc.contributor.authorBriones Gallardo, Roberto
dc.contributor.authorVelasco Martínez, Guillermo
dc.contributor.authorRangel Méndez, José René
dc.date.accessioned2018-08-28T23:37:10Z
dc.date.available2018-08-28T23:37:10Z
dc.date.issued2017-08
dc.identifier.citationEsmeralda Vences-Alvarez, Elías Razo-Flores, Isabel Lázaro, Roberto Briones-Gallardo, Guillermo Velasco-Martínez, Rene Rangel-Mendez, Gold recovery from very dilute solutions from a mine in closing process: Adsorption-desorption onto carbon materials, Journal of Molecular Liquids, Volume 240, 2017, Pages 549-555.es_MX
dc.identifier.urihttp://hdl.handle.net/11627/4095
dc.description.abstract"The aurocyanide complex recovery by precipitation with zinc decreases when gold concentration drops to < 20 μg L− 1. Therefore, a technology capable of recovering gold from very diluted solution is necessary. Adsorption and desorption experiments were carried out with real solutions in batch and in continuous processes to determine the gold adsorption capacity and rate onto two activated carbons (AC). The results showed that AC F400 and CSC removed 86 and 81 μg g− 1, respectively, at pH 11 and Ce of 10 μg L− 1 in about 4 h. Whereas desorption test by NaOH and CN− showed a gold recovery of up to 86%. These experiments were correlated to the textural and chemical properties of adsorbents and to the chemical composition of samples from a heap leach process. AC is a highly efficient and selective adsorbent for gold cyanide solutions when gold is present in very low concentration (< 12 μg L− 1)."es_MX
dc.language.isoenges_MX
dc.publisherElsevier B.V.es_MX
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectGold cyanidees_MX
dc.subjectActivate carbonses_MX
dc.subjectAdsorptiones_MX
dc.subjectDesorptiones_MX
dc.subjectPacked bed columnes_MX
dc.subject.classificationArea::BIOLOGÍA Y QUÍMICA::QUÍMICA::QUÍMICA FÍSICAes_MX
dc.titleGold recovery from very dilute solutions from a mine in closing process: adsorption-desorption onto carbon materialses_MX
dc.typearticlees_MX
dc.identifier.doihttps://doi.org/10.1016/j.molliq.2017.05.069


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution-NonCommercial-NoDerivatives 4.0 Internacional