Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid

Autores
Rosales, Gustavo Daniel; Ruiz, Maria del Carmen Beatriz; Rodriguez, Mario Humberto
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Fil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
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
Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
Materia
LITHIUM
KINETICS
LEACHING
HYDROFLURIC ACID
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:11336/103596

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network_name_str CONICET Digital (CONICET)
spelling Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric AcidRosales, Gustavo DanielRuiz, Maria del Carmen BeatrizRodriguez, Mario HumbertoLITHIUMKINETICSLEACHINGHYDROFLURIC ACIDhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Parameters 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.Fil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: 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; ArgentinaFil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaMolecular Diversity Preservation International2016-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/103596Rosales, 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; 1-122075-163XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3390/min6040098info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-163X/6/4/98info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:41:13Zoai:ri.conicet.gov.ar:11336/103596instacron: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 10:41:13.567CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
title Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
spellingShingle Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
Rosales, Gustavo Daniel
LITHIUM
KINETICS
LEACHING
HYDROFLURIC ACID
title_short Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
title_full Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
title_fullStr Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
title_full_unstemmed Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
title_sort Study of the Extraction Kinetics of Lithium by Leaching β-Spodumene with Hydrofluoric Acid
dc.creator.none.fl_str_mv Rosales, Gustavo Daniel
Ruiz, Maria del Carmen Beatriz
Rodriguez, Mario Humberto
author Rosales, Gustavo Daniel
author_facet Rosales, Gustavo Daniel
Ruiz, Maria del Carmen Beatriz
Rodriguez, Mario Humberto
author_role author
author2 Ruiz, Maria del Carmen Beatriz
Rodriguez, Mario Humberto
author2_role author
author
dc.subject.none.fl_str_mv LITHIUM
KINETICS
LEACHING
HYDROFLURIC ACID
topic LITHIUM
KINETICS
LEACHING
HYDROFLURIC ACID
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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.
Fil: Rosales, Gustavo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
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
Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
description 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.
publishDate 2016
dc.date.none.fl_str_mv 2016-09
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/11336/103596
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
2075-163X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/103596
identifier_str_mv 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
2075-163X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3390/min6040098
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-163X/6/4/98
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 Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
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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