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dc.contributor.author
Rodriguez, Mario Humberto
dc.contributor.author
Rosales, Gustavo Daniel
dc.contributor.author
Pinna, Eliana Guadalupe
dc.contributor.author
Suarez, Daniela Silvana
dc.date.available
2018-09-12T15:48:09Z
dc.date.issued
2015-07
dc.identifier.citation
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
dc.identifier.issn
0304-386X
dc.identifier.uri
http://hdl.handle.net/11336/59297
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ferrocolumbite
dc.subject
Niobium
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Pressure Leaching
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Tantalum
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Otras Ingeniería Química
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Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-12T13:58:10Z
dc.journal.volume
156
dc.journal.pagination
17-20
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
dc.description.fil
Fil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
dc.description.fil
Fil: Pinna, Eliana Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
dc.description.fil
Fil: Suarez, Daniela Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
dc.journal.title
Hydrometallurgy (amsterdam)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.hydromet.2015.05.006
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304386X15300141
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