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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/103596
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/103596 |
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CONICET Digital (CONICET) |
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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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1844614442256433152 |
score |
13.070432 |