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Leaching manganese nodules in an acid medium and room temperature comparing the use of different Fe reducing agent

dc.contributor.authorTorres Albornoz, David Antonio es_ES
dc.contributor.authorAyala Alcázar, Luis es_ES
dc.contributor.authorSaldaña Pino, Manuel es_ES
dc.contributor.authorCánovas Vidal, Manuel es_ES
dc.contributor.authorJeldres Valenzuela, Ricardo Iván es_ES
dc.contributor.authorNieto Mejía, Steven es_ES
dc.contributor.authorCastillo Segura, Jonathan Alejandro es_ES
dc.contributor.authorRobles Vásquez, Pedro Adrián es_ES
dc.contributor.authorToro Villarroel, Norman Rodrigo es_ES
dc.date.accessioned2021-04-08T12:09:26Z
dc.date.available2021-04-08T12:09:26Z
dc.date.issued2019-12-06
dc.identifier.citationTorres, D.; Ayala, L.; Saldaña, M.; Cánovas, M.; Jeldres, R.I.; Nieto, S.; Castillo, J.; Robles, P.; Toro, N. Leaching Manganese Nodules in an Acid Medium and Room Temperature Comparing the Use of Different Fe Reducing Agents. Metals 2019, 9, 1316. https://doi.org/10.3390/met9121316es_ES
dc.identifier.issn2075-4701
dc.description.abstractThe deposits of Fe-Mn, in the seabed of the planet, are a good alternative source for the extraction of elements of interest. Among these are marine nodules, which have approximately 24% manganese and may be a solution to the shortage of high-grade ores on the surface. In this investigation, an ANOVA analysis was performed to evaluate the time independent variables and MnO2/reducing agent in the leaching of manganese nodules with the use of different Fe reducing agents (FeS2, Fe2+, Fe-0 and Fe2O3). Tests were also carried out for the different reducing agents evaluating the MnO2/Fe ratio, in which the Fe-0 (FeC) proved to be the best reducing agent for the dissolution of Mn from marine nodules, achieving solutions of 97% in 20 min. In addition, it was discovered that at low MnO2/Fe ratios the acid concentration in the system is not very relevant and the potential and pH were in ranges of -0.4-1.4 V and -2-0.1 favoring the dissolution of Mn from MnO2.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 to Marina Vargas Aleuy of the Universidad Católica del Norte for supporting the experimental tests. Pedro Robles thanks the Pontificia Universidad Católica de Valparaíso for the support provided.es_ES
dc.formatapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.relationExtracción de cobre y manganeso mediante procesos de lixiviaciónes_ES
dc.relation.urihttps://doi.org/10.3390/met9121316es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleLeaching manganese nodules in an acid medium and room temperature comparing the use of different Fe reducing agentes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.subject.otherCiencia de los Materiales e Ingeniería Metalúrgicaes_ES
dc.subjectMnO2es_ES
dc.subjectAcid mediaes_ES
dc.subjectANOVAes_ES
dc.subjectDissolutiones_ES
dc.identifier.urihttp://hdl.handle.net/10317/9274
dc.peerreviewSies_ES
dc.identifier.doi10.3390/met9121316
dc.identifier.urlhttps://www.mdpi.com/2075-4701/9/12/1316#cite
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.subject.unesco3312 Tecnología de Materialeses_ES
dc.contributor.convenianteUniversidad Católica del Nortees_ES
dc.contributor.convenianteUniversidad Arturo Prattes_ES
dc.contributor.convenianteUniversidad de Antofagastaes_ES
dc.contributor.convenianteUniversidad de Atacamaes_ES
dc.contributor.conveniantePontificia Universidad Católica de Valparaísoes_ES


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