Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium
- Autores
- Pérez, Kevin; Toro, Norman; Campos, Eduardo; González, Javier; Jeldres, Ricardo I.; Nazer, Amin; Rodriguez, Mario Humberto
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- 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.
Fil: Pérez, Kevin. Universidad Católica del Norte; Chile
Fil: Toro, Norman. Universidad Politécnica de Cartagena; España. Universidad Católica del Norte; Chile
Fil: Campos, Eduardo. Universidad Católica del Norte; Chile
Fil: González, Javier. Universidad Católica del Norte; Chile
Fil: Jeldres, Ricardo I.. Universidad de Antofagasta; Chile
Fil: Nazer, Amin. Universidad de Atacama; Chile
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 - Materia
-
MANGANESE
REDUCING AGENT
WASTE TREATMENT - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/169745
Ver los metadatos del registro completo
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Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid mediumPérez, KevinToro, NormanCampos, EduardoGonzález, JavierJeldres, Ricardo I.Nazer, AminRodriguez, Mario HumbertoMANGANESEREDUCING AGENTWASTE TREATMENThttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Exotic 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.Fil: Pérez, Kevin. Universidad Católica del Norte; ChileFil: Toro, Norman. Universidad Politécnica de Cartagena; España. Universidad Católica del Norte; ChileFil: Campos, Eduardo. Universidad Católica del Norte; ChileFil: González, Javier. Universidad Católica del Norte; ChileFil: Jeldres, Ricardo I.. Universidad de Antofagasta; ChileFil: Nazer, Amin. Universidad de Atacama; ChileFil: 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; ArgentinaMDPI AG2019-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/169745Pérez, 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; 1-102075-4701CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-4701/9/10/1112info:eu-repo/semantics/altIdentifier/doi/10.3390/met9101112info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:34Zoai:ri.conicet.gov.ar:11336/169745instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:32:34.33CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| title |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| spellingShingle |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium Pérez, Kevin MANGANESE REDUCING AGENT WASTE TREATMENT |
| title_short |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| title_full |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| title_fullStr |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| title_full_unstemmed |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| title_sort |
Extraction of Mn from black copper using iron oxides from tailings and Fe2+ as reducing agents in acid medium |
| dc.creator.none.fl_str_mv |
Pérez, Kevin Toro, Norman Campos, Eduardo González, Javier Jeldres, Ricardo I. Nazer, Amin Rodriguez, Mario Humberto |
| author |
Pérez, Kevin |
| author_facet |
Pérez, Kevin Toro, Norman Campos, Eduardo González, Javier Jeldres, Ricardo I. Nazer, Amin Rodriguez, Mario Humberto |
| author_role |
author |
| author2 |
Toro, Norman Campos, Eduardo González, Javier Jeldres, Ricardo I. Nazer, Amin Rodriguez, Mario Humberto |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
MANGANESE REDUCING AGENT WASTE TREATMENT |
| topic |
MANGANESE REDUCING AGENT WASTE TREATMENT |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
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. Fil: Pérez, Kevin. Universidad Católica del Norte; Chile Fil: Toro, Norman. Universidad Politécnica de Cartagena; España. Universidad Católica del Norte; Chile Fil: Campos, Eduardo. Universidad Católica del Norte; Chile Fil: González, Javier. Universidad Católica del Norte; Chile Fil: Jeldres, Ricardo I.. Universidad de Antofagasta; Chile Fil: Nazer, Amin. Universidad de Atacama; Chile 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 |
| description |
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. |
| publishDate |
2019 |
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2019-10 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/169745 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 2075-4701 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/169745 |
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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 2075-4701 CONICET Digital CONICET |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-4701/9/10/1112 info:eu-repo/semantics/altIdentifier/doi/10.3390/met9101112 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
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openAccess |
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application/pdf application/pdf |
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MDPI AG |
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MDPI AG |
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