Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching

Autores
Rodriguez, Mario Humberto; Rosales, Gustavo Daniel; Pinna, Eliana Guadalupe; Suarez, Daniela Silvana
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Abstract Pressure acid leaching was used to extract niobium and tantalum from a ferrocolumbite ore. The leaching was carried out in a pressure reactor using hydrofluoric acid as leachant. Various parameters, such as temperature, reaction time, HF concentration, stirring speed, particle size and solid-to-liquid ratio in the leaching process, were optimized. The reactants and products were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD) and specific surface area (BET). Experimental results showed that the maximum extraction of Nb and Ta, 90 and 80% respectively, it was achieved at an HF concentration of 9% v/v, reaction temperature of 220°C, particle size of - 45 μm, solid-to-liquid ratio of 1.82% w/v and reaction time of 80 min. Crystalline structures, different from those originally present in the ore, were not detected by XRD analysis of the leaching residues.
Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Pinna, Eliana Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Suarez, Daniela Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Materia
Ferrocolumbite
Niobium
Pressure Leaching
Tantalum
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/59297

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network_name_str CONICET Digital (CONICET)
spelling Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leachingRodriguez, Mario HumbertoRosales, Gustavo DanielPinna, Eliana GuadalupeSuarez, Daniela SilvanaFerrocolumbiteNiobiumPressure LeachingTantalumhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Abstract Pressure acid leaching was used to extract niobium and tantalum from a ferrocolumbite ore. The leaching was carried out in a pressure reactor using hydrofluoric acid as leachant. Various parameters, such as temperature, reaction time, HF concentration, stirring speed, particle size and solid-to-liquid ratio in the leaching process, were optimized. The reactants and products were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD) and specific surface area (BET). Experimental results showed that the maximum extraction of Nb and Ta, 90 and 80% respectively, it was achieved at an HF concentration of 9% v/v, reaction temperature of 220°C, particle size of - 45 μm, solid-to-liquid ratio of 1.82% w/v and reaction time of 80 min. Crystalline structures, different from those originally present in the ore, were not detected by XRD analysis of the leaching residues.Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Pinna, Eliana Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Suarez, Daniela Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaElsevier Science2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/59297Rodriguez, Mario Humberto; Rosales, Gustavo Daniel; Pinna, Eliana Guadalupe; Suarez, Daniela Silvana; Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching; Elsevier Science; Hydrometallurgy (amsterdam); 156; 7-2015; 17-200304-386XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.hydromet.2015.05.006info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304386X15300141info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:42Zoai:ri.conicet.gov.ar:11336/59297instacron: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 09:55:43.027CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
title Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
spellingShingle Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
Rodriguez, Mario Humberto
Ferrocolumbite
Niobium
Pressure Leaching
Tantalum
title_short Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
title_full Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
title_fullStr Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
title_full_unstemmed Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
title_sort Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
dc.creator.none.fl_str_mv Rodriguez, Mario Humberto
Rosales, Gustavo Daniel
Pinna, Eliana Guadalupe
Suarez, Daniela Silvana
author Rodriguez, Mario Humberto
author_facet Rodriguez, Mario Humberto
Rosales, Gustavo Daniel
Pinna, Eliana Guadalupe
Suarez, Daniela Silvana
author_role author
author2 Rosales, Gustavo Daniel
Pinna, Eliana Guadalupe
Suarez, Daniela Silvana
author2_role author
author
author
dc.subject.none.fl_str_mv Ferrocolumbite
Niobium
Pressure Leaching
Tantalum
topic Ferrocolumbite
Niobium
Pressure Leaching
Tantalum
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Abstract Pressure acid leaching was used to extract niobium and tantalum from a ferrocolumbite ore. The leaching was carried out in a pressure reactor using hydrofluoric acid as leachant. Various parameters, such as temperature, reaction time, HF concentration, stirring speed, particle size and solid-to-liquid ratio in the leaching process, were optimized. The reactants and products were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD) and specific surface area (BET). Experimental results showed that the maximum extraction of Nb and Ta, 90 and 80% respectively, it was achieved at an HF concentration of 9% v/v, reaction temperature of 220°C, particle size of - 45 μm, solid-to-liquid ratio of 1.82% w/v and reaction time of 80 min. Crystalline structures, different from those originally present in the ore, were not detected by XRD analysis of the leaching residues.
Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Pinna, Eliana Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Suarez, Daniela Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
description Abstract Pressure acid leaching was used to extract niobium and tantalum from a ferrocolumbite ore. The leaching was carried out in a pressure reactor using hydrofluoric acid as leachant. Various parameters, such as temperature, reaction time, HF concentration, stirring speed, particle size and solid-to-liquid ratio in the leaching process, were optimized. The reactants and products were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD) and specific surface area (BET). Experimental results showed that the maximum extraction of Nb and Ta, 90 and 80% respectively, it was achieved at an HF concentration of 9% v/v, reaction temperature of 220°C, particle size of - 45 μm, solid-to-liquid ratio of 1.82% w/v and reaction time of 80 min. Crystalline structures, different from those originally present in the ore, were not detected by XRD analysis of the leaching residues.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/59297
Rodriguez, Mario Humberto; Rosales, Gustavo Daniel; Pinna, Eliana Guadalupe; Suarez, Daniela Silvana; Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching; Elsevier Science; Hydrometallurgy (amsterdam); 156; 7-2015; 17-20
0304-386X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59297
identifier_str_mv Rodriguez, Mario Humberto; Rosales, Gustavo Daniel; Pinna, Eliana Guadalupe; Suarez, Daniela Silvana; Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching; Elsevier Science; Hydrometallurgy (amsterdam); 156; 7-2015; 17-20
0304-386X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.hydromet.2015.05.006
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304386X15300141
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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