Purification of niobium using liquid - liquid extraction

Detalhes bibliográficos
Autor(a) principal: Silveira, Giuliano Marcos da
Data de Publicação: 2022
Outros Autores: Begnini, Mauro Luiz, Silva, Larielly Regina Santos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/31880
Resumo: In the present work, we sought to approach the solvent extraction technology for the separation and purification of niobium and tantalum, promoting a reflection in order to expand the chosen theme. Even in the face of a variety of solvents that have been investigated for the extraction and separation of niobium and tantalum, it was possible to find in the literature that only four were used commercially in the production of niobium and tantalum from their raw materials. Solvents commercially used in the extraction were: methyl iso-butyl ketone (MIBK), tri-butyl phosphate (TBP), cyclohexanone (CHN) and 2-octanol (2-OCL). Another verified aspect is that the extraction, separation and purification by solvents of niobium and tantalum used in the industry always occur in the presence of fluoride ions. This study presents the selective removal of niobium (Nb) and tantalum (Ta) by liquid-liquid extraction using an aqueous acid digestion solution composed of commercial grade niobic acid, hydrofluoric acid and sulfuric acid. Solvent extraction assays were tested for three types of extractants, 2-Octanol, TBP and Cyanex 923. A delineated review of the variables of the methodology involved in the separation and purification of niobium and tantalum, as well as the techniques involved, were discussed.
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spelling Purification of niobium using liquid - liquid extractionPurificación de niobio utilizando líquido - extracción líquidaPurificação de nióbio utilizando a extração líquido – líquido Tecnologia de extraçãoNióbioTântaloPurificação.Extraction technologyNiobiumTantalumPurification.Tecnología de extracciónNiobioTantalioPurificación.In the present work, we sought to approach the solvent extraction technology for the separation and purification of niobium and tantalum, promoting a reflection in order to expand the chosen theme. Even in the face of a variety of solvents that have been investigated for the extraction and separation of niobium and tantalum, it was possible to find in the literature that only four were used commercially in the production of niobium and tantalum from their raw materials. Solvents commercially used in the extraction were: methyl iso-butyl ketone (MIBK), tri-butyl phosphate (TBP), cyclohexanone (CHN) and 2-octanol (2-OCL). Another verified aspect is that the extraction, separation and purification by solvents of niobium and tantalum used in the industry always occur in the presence of fluoride ions. This study presents the selective removal of niobium (Nb) and tantalum (Ta) by liquid-liquid extraction using an aqueous acid digestion solution composed of commercial grade niobic acid, hydrofluoric acid and sulfuric acid. Solvent extraction assays were tested for three types of extractants, 2-Octanol, TBP and Cyanex 923. A delineated review of the variables of the methodology involved in the separation and purification of niobium and tantalum, as well as the techniques involved, were discussed.En el presente trabajo, buscamos abordar la tecnología de extracción por solventes para la separación y purificación de niobio y tantalio, promoviendo una reflexión con el fin de ampliar el tema elegido. Incluso frente a una variedad de solventes que han sido investigados para la extracción y separación de niobio y tantalio, fue posible encontrar en la literatura que solo cuatro fueron utilizados comercialmente en la producción de niobio y tantalio a partir de sus materias primas. Los solventes comercialmente utilizados en la extracción fueron: metil isobutil cetona (MIBK), fosfato de tributilo (TBP), ciclohexanona (CHN) y 2-octanol (2-OCL). Otro aspecto verificado es que la extracción, separación y purificación por solventes de niobio y tantalio utilizados en la industria siempre ocurren en presencia de iones fluoruro. Este estudio presenta la remoción selectiva de niobio (Nb) y tantalio (Ta) por extracción líquido-líquido utilizando una solución acuosa de digestión ácida compuesta por ácido nióbico, ácido fluorhídrico y ácido sulfúrico de calidad comercial. Se probaron ensayos de extracción con solvente para tres tipos de extractantes, 2-Octanol, TBP y Cyanex 923. Se discutió una revisión delineada de las variables de la metodología involucrada en la separación y purificación de niobio y tantalio, así como las técnicas involucradas.No presente trabalho desenvolvido, buscou-se abordar a tecnologia de extração por solventes para a separação e purificação de nióbio e tântalo, promovendo uma reflexão com o intuito de ampliar o tema escolhido. Mesmo diante de uma variedade de solventes que tenham sido investigados para a extração e separação de nióbio e tântalo, foi possível encontrar nas literaturas que apenas quatro foram usados comercialmente na produção de nióbio e tântalo partindo de suas matérias-primas. Os solventes utilizados comercialmente na extração foram: metil iso-butil cetona (MIBK), tri-butil fosfato (TBP), cicloexanona (CHN) e 2-octanol (2- OCL). Outro aspecto verificado é que a extração, separação e purificação por solventes de nióbio e tântalo utilizadas na indústria ocorrem sempre na presença de íons fluoretos. Neste estudo é apresentada a remoção seletiva de nióbio (Nb) e tântalo (Ta) por extração líquido-líquido, utilizando uma solução aquosa por digestão ácida, composta de ácido nióbico de grau comercial, ácido fluorídrico e ácido sulfúrico. Os ensaios de extração por solvente foram testados três tipos de extratantes o 2-Octanol, o TBP e o Cyanex 923. Uma revisão delineada das variáveis da metodologia envolvida na separação e purificação de nióbio e tântalo, bem como as técnicas envolvidas, foram discutidas.Research, Society and Development2022-07-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/3188010.33448/rsd-v11i9.31880Research, Society and Development; Vol. 11 No. 9; e48411931880Research, Society and Development; Vol. 11 Núm. 9; e48411931880Research, Society and Development; v. 11 n. 9; e484119318802525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/31880/27351Copyright (c) 2022 Giuliano Marcos da Silveira; Mauro Luiz Begnini; Larielly Regina Santos Silvahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilveira, Giuliano Marcos daBegnini, Mauro Luiz Silva, Larielly Regina Santos 2022-07-21T12:36:16Zoai:ojs.pkp.sfu.ca:article/31880Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:48:04.141190Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Purification of niobium using liquid - liquid extraction
Purificación de niobio utilizando líquido - extracción líquida
Purificação de nióbio utilizando a extração líquido – líquido
title Purification of niobium using liquid - liquid extraction
spellingShingle Purification of niobium using liquid - liquid extraction
Silveira, Giuliano Marcos da
Tecnologia de extração
Nióbio
Tântalo
Purificação.
Extraction technology
Niobium
Tantalum
Purification.
Tecnología de extracción
Niobio
Tantalio
Purificación.
title_short Purification of niobium using liquid - liquid extraction
title_full Purification of niobium using liquid - liquid extraction
title_fullStr Purification of niobium using liquid - liquid extraction
title_full_unstemmed Purification of niobium using liquid - liquid extraction
title_sort Purification of niobium using liquid - liquid extraction
author Silveira, Giuliano Marcos da
author_facet Silveira, Giuliano Marcos da
Begnini, Mauro Luiz
Silva, Larielly Regina Santos
author_role author
author2 Begnini, Mauro Luiz
Silva, Larielly Regina Santos
author2_role author
author
dc.contributor.author.fl_str_mv Silveira, Giuliano Marcos da
Begnini, Mauro Luiz
Silva, Larielly Regina Santos
dc.subject.por.fl_str_mv Tecnologia de extração
Nióbio
Tântalo
Purificação.
Extraction technology
Niobium
Tantalum
Purification.
Tecnología de extracción
Niobio
Tantalio
Purificación.
topic Tecnologia de extração
Nióbio
Tântalo
Purificação.
Extraction technology
Niobium
Tantalum
Purification.
Tecnología de extracción
Niobio
Tantalio
Purificación.
description In the present work, we sought to approach the solvent extraction technology for the separation and purification of niobium and tantalum, promoting a reflection in order to expand the chosen theme. Even in the face of a variety of solvents that have been investigated for the extraction and separation of niobium and tantalum, it was possible to find in the literature that only four were used commercially in the production of niobium and tantalum from their raw materials. Solvents commercially used in the extraction were: methyl iso-butyl ketone (MIBK), tri-butyl phosphate (TBP), cyclohexanone (CHN) and 2-octanol (2-OCL). Another verified aspect is that the extraction, separation and purification by solvents of niobium and tantalum used in the industry always occur in the presence of fluoride ions. This study presents the selective removal of niobium (Nb) and tantalum (Ta) by liquid-liquid extraction using an aqueous acid digestion solution composed of commercial grade niobic acid, hydrofluoric acid and sulfuric acid. Solvent extraction assays were tested for three types of extractants, 2-Octanol, TBP and Cyanex 923. A delineated review of the variables of the methodology involved in the separation and purification of niobium and tantalum, as well as the techniques involved, were discussed.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/31880
10.33448/rsd-v11i9.31880
url https://rsdjournal.org/index.php/rsd/article/view/31880
identifier_str_mv 10.33448/rsd-v11i9.31880
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/31880/27351
dc.rights.driver.fl_str_mv Copyright (c) 2022 Giuliano Marcos da Silveira; Mauro Luiz Begnini; Larielly Regina Santos Silva
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Giuliano Marcos da Silveira; Mauro Luiz Begnini; Larielly Regina Santos Silva
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 11 No. 9; e48411931880
Research, Society and Development; Vol. 11 Núm. 9; e48411931880
Research, Society and Development; v. 11 n. 9; e48411931880
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052796341583872

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