dc.creator | Lorenzo Tallafigo, Juan | es |
dc.creator | Romero Aleta, Rafael | es |
dc.creator | Iglesias González, María Nieves | es |
dc.creator | Mazuelos Rojas, Alfonso | es |
dc.creator | Romero Aleta, Rafael | es |
dc.creator | Carranza Mora, Francisco | es |
dc.date.accessioned | 2023-12-26T12:15:53Z | |
dc.date.available | 2023-12-26T12:15:53Z | |
dc.date.issued | 2021-03 | |
dc.identifier.citation | Lorenzo Tallafigo, J., Romero Aleta, R., Iglesias González, M.N., Mazuelos Rojas, A., Romero Aleta, R. y Carranza Mora, F. (2021). A novel hydrometallurgical treatment for the recovery of copper, zinc, lead and silver from bulk concentrates. Hydrometallurgy, 200, 105548. https://doi.org/10.1016/j.hydromet.2020.105548. | |
dc.identifier.issn | 0304-386X | es |
dc.identifier.issn | 1879-1158 | es |
dc.identifier.uri | https://hdl.handle.net/11441/152805 | |
dc.description.abstract | Nowadays sulphide ores exploitation is undergoing some troubles, which are hindering the treatment through
traditional routes. Bulk flotation followed by a novel hydrometallurgical process can dodge these difficulties. In
this work, an integral hydrometallurgical process consists of two ferric leaching steps, followed by a hot brine
leaching stage, is proposed to recover target metals from a bulk sulphide concentrate (2.9% Cu, 7.4% Zn, 2.5%
Pb, 67 ppm Ag and 37.2% Fe). In the first ferric leaching step, sphalerite, galena and copper secondary sulphides
are dissolved and, in the second leaching step, a silver salt is added in order to catalyse chalcopyrite oxidation. If
silver salt is added at the beginning of the process, sphalerite passivation is observed, and therefore zinc recovery
is not possible. However, when catalytic leaching is performed after a previous ferric leaching, copper and zinc
recoveries higher than 95% are achieved. The leached concentrate (0.3% Cu, 0.8% Zn, 3.3% Pb, 1438 ppm Ag,
38.0% Fe and 6.6% S0
), is treated by a hot brine leaching. When hot brine leaching is performed at high pulp
density, elemental sulphur removal is necessary to recover all silver added as a catalyst. Extractions higher than
95% for Zn, Cu and Pb are achieved as well as the total recovery of catalyst. The proposed process is silver
surplus; therefore, this agent can be recirculated. | es |
dc.description.sponsorship | CLC Company - 2665/0124 | es |
dc.description.sponsorship | Universidad de Sevilla - VI PPIT | es |
dc.format | application/pdf | es |
dc.format.extent | 13 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Hydrometallurgy, 200, 105548. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Bulk sulphide concentrate | es |
dc.subject | Ferric leaching | es |
dc.subject | Catalysed leaching | es |
dc.subject | Hot brine leaching | es |
dc.title | A novel hydrometallurgical treatment for the recovery of copper, zinc, lead and silver from bulk concentrates | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería Química | es |
dc.relation.projectID | CLC 2665/0124 | es |
dc.relation.projectID | USE VI PPIT | es |
dc.relation.publisherversion | https://doi.org/10.1016/j.hydromet.2020.105548 | es |
dc.identifier.doi | 10.1016/j.hydromet.2020.105548 | es |
dc.journaltitle | Hydrometallurgy | es |
dc.publication.volumen | 200 | es |
dc.publication.initialPage | 105548 | es |
dc.contributor.funder | Universidad de Sevilla | es |