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dc.contributor.author
Rosales, Gustavo Daniel
dc.contributor.author
Ruiz, Maria del Carmen Beatriz
dc.contributor.author
Rodriguez, Mario Humberto
dc.date.available
2020-04-24T20:12:41Z
dc.date.issued
2016-09
dc.identifier.citation
Rosales, Gustavo Daniel; Ruiz, Maria del Carmen Beatriz; Rodriguez, Mario Humberto; Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid; Molecular Diversity Preservation International; Minerals; 6; 98; 9-2016; 1-12
dc.identifier.issn
2075-163X
dc.identifier.uri
http://hdl.handle.net/11336/103596
dc.description.abstract
Parameters affecting the kinetics of the dissolution of β-spodumene with hydrofluoric acid have been investigated. The experimental tests were carried out in a closed vessel. The influence of several parameters, such as stirring speed, temperature, and reaction time were studied in order to deduce the kinetics of the dissolution reaction. The other parameters, particle size −45 µm; HF concentration 4% v/v, and the solid–liquid ratio 0.95% w/v were kept constant. The results indicate that the stirring speed does not have an important effect on the dissolution of the mineral above 330 rpm. The extent of the leaching of β-spodumene increases with temperature and reaction time augmentations. Scanning electron microscope (SEM) analyses of some residues in which the conversion was lower than 30% indicated a selective attack on certain zones of the particle. The treatment of the experimental data was carried out using the Modelado software. The model that best represents the dissolution of the mineral is the following: ln(1 − X) = −b1 [ln(1 + b2t) − b2t/(1 + b2t)]. This model is based on “nucleation and growth of nuclei” theory, and describes the style of attack physically observed by SEM on the residues.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Molecular Diversity Preservation International
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
LITHIUM
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KINETICS
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LEACHING
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HYDROFLURIC ACID
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-04-24T18:07:11Z
dc.journal.volume
6
dc.journal.number
98
dc.journal.pagination
1-12
dc.journal.pais
Suiza
dc.journal.ciudad
Basile
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: Ruiz, Maria del Carmen Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
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.journal.title
Minerals
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/min6040098
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-163X/6/4/98
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