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dc.contributor.authorSaldaña Pino, Manuel 
dc.contributor.authorToro Villarroel, Norman Rodrigo 
dc.contributor.authorCastillo Segura, Jonathan Alejandro 
dc.contributor.authorHernández Avendaño, Pía Carolina Andrea 
dc.contributor.authorTrigueros Tornero, Emilio 
dc.contributor.authorNavarra Lafontaine, Alessandro
dc.identifier.citationSaldaña, M.; Toro, N.; Castillo, J.; Hernández, P.; Trigueros, E.; Navarra, A. Development of an Analytical Model for the Extraction of Manganese from Marine Nodules. Metals 2019, 9, 903.es_ES
dc.description.abstractMultivariable analytical models provide a descriptive (albeit approximate) mathematical relationship between a set of independent variables and one or more dependent variables. The current work develops an analytical model that extends a design of experiments for the leaching of manganese from marine nodules, using sulfuric acid (H2SO4) in the presence of iron-containing tailings, which are both by-products of conventional copper extraction. The experiments are configured to address the effect of time, particle size, acid concentration, Fe2O3/MnO2 ratio, stirring speed and temperature, under typical industrial conditions. The recovery of manganese has been modeled using a first order differential equation that accurately fits experimental results, noting that Fe2O3/MnO2 and temperature are the most critical independent variables, while the particle size is the least influential (under typical conditions). This study obtains representative fitting parameters, that can be used to explore the incorporation of Mn recovery from marine nodules, as part of the extended value chain of copper sulfide processing.es_ES
dc.description.sponsorshipThe authors are grateful for the contribution of the Scientific Equipment Unit- MAINI of the Universidad Católica del Norte for aiding in generating data by automated electronic microscopy QEMSCAN®, and for facilitating the chemical analysis of the solutions. We are also grateful to the Altonorte Mining Company for supporting this research and providing slag for this study, and we thank Marina Vargas Aleuy, María Barraza Bustos and Carolina Ossandón Cortés of the Universidad Católica del Norte for supporting the experimental tests.es_ES
dc.publisherMDPI AGes_ES
dc.relation.ispartofOptimización de parámetros para la extracción de elementos desde minerales en medios ácidoes_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.titleDevelopment of an analytical model for the extraction of manganese from marine noduleses_ES
dc.subjectManganese extractiones_ES
dc.subjectMarine noduleses_ES
dc.subjectAcid leachinges_ES
dc.subjectDesign of experimentses_ES
dc.subjectOrdinary differential equationses_ES
dc.subjectMathematical modellinges_ES
dc.subject.otherExplotación de Minases_ES
dc.subject.unesco5312.09 Mineríaes_ES
dc.contributor.funderScientific Equipment Unit- MAINI of the Universidad Católica del Norte (Chile)es_ES

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España