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dc.contributor.author
Pérez, Kevin
dc.contributor.author
Toro, Norman
dc.contributor.author
Campos, Eduardo
dc.contributor.author
González, Javier
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Jeldres, Ricardo I.
dc.contributor.author
Nazer, Amin
dc.contributor.author
Rodriguez, Mario Humberto
dc.date.available
2022-09-21T14:54:28Z
dc.date.issued
2019-10
dc.identifier.citation
Pérez, Kevin; Toro, Norman; Campos, Eduardo; González, Javier; Jeldres, Ricardo I.; et al.; Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium; MDPI AG; Metals; 9; 10; 10-2019; 1-10
dc.identifier.issn
2075-4701
dc.identifier.uri
http://hdl.handle.net/11336/169745
dc.description.abstract
Exotic type deposits include several species of minerals, such as atacamite, chrysocolla, copper pitch, and copper wad. Among these, copper pitch and copper wad have considerable concentrations of manganese. However, their non-crystalline and amorphous structure makes it challenging to recover the elements of interest (like Cu or Mn) by conventional hydrometallurgical methods. For this reason, black copper ores are generally not incorporated into the extraction circuits or left unprocessed, whether in stock, leach pads, or waste. Therefore, to dilute MnO2, the use of reducing agents is essential. In the present research, agitated leaching was performed to dissolve Mn of black copper in an acidic medium, comparing the use of ferrous ions and tailings as reducing agents. Two samples of black copper were studied, of high and low grade of Mn, respectively, the latter with a high content of clays. The effect on the reducing agent/black copper ratio and the concentration of sulfuric acid in the system were evaluated. Better results in removing Mn were achieved using the highest-grade black copper sample when working with ferrous ions at a ratio of Fe2+/black copper of 2/1 and 1 mol/L of sulfuric acid. Besides, the low-grade sample induced a significant consumption of H2SO4 due to the high presence of gangue and clays.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI AG
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
MANGANESE
dc.subject
REDUCING AGENT
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WASTE TREATMENT
dc.subject.classification
Otras Ciencias Químicas
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Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-03T18:30:37Z
dc.journal.volume
9
dc.journal.number
10
dc.journal.pagination
1-10
dc.journal.pais
Suiza
dc.journal.ciudad
Basilea
dc.description.fil
Fil: Pérez, Kevin. Universidad Católica del Norte; Chile
dc.description.fil
Fil: Toro, Norman. Universidad Politécnica de Cartagena; España. Universidad Católica del Norte; Chile
dc.description.fil
Fil: Campos, Eduardo. Universidad Católica del Norte; Chile
dc.description.fil
Fil: González, Javier. Universidad Católica del Norte; Chile
dc.description.fil
Fil: Jeldres, Ricardo I.. Universidad de Antofagasta; Chile
dc.description.fil
Fil: Nazer, Amin. Universidad de Atacama; Chile
dc.description.fil
Fil: Rodriguez, Mario Humberto. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
dc.journal.title
Metals
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-4701/9/10/1112
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/met9101112
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