Kaolinite removal from bauxite by flotation.

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Otávia Martins Silva
Data de Publicação: 2016
Outros Autores: Peres, Antônio Eduardo Clark, Henriques, Andréia Bicalho, Amorim, Bárbara Gonçalves
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
dARK ID: ark:/61566/00130000032kc
Texto Completo: http://www.repositorio.ufop.br/handle/123456789/9067
https://doi.org/10.1590/0370-44672014690093
Resumo: This paper presents a potential condition to separate kaolinite through flotation when it is present in bauxite ore. This research anticipates a Brazilian industry requirement, considering the tendency towards the need for aluminosilicates removal from bauxite ores, as has already occurred in China. Kaolinite is the most abundant aluminosilicate, and gibbsite is the main aluminum bearing mineral in Brazilian bauxite ores. The first step was a fundamental study involving microflotation experiments with pure samples of kaolinite and gibbsite. Ammonium quaternary salts and amines were used as the collector and corn starch as the depressant. In a fundamental study, the best conditions determined in the first step were evaluated for the flotation of kaolinite from bauxite ore using laboratory scale experiments. Tests with AQ142/starch (pH 10) and CTAB (pH 7) led to satisfactory results. In general, the highest values of alumina/silica mass ratio were obtained with AQ142/starch and the highest values of mass recovery and metallurgical recovery were achieved with CTAB.
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spelling Kaolinite removal from bauxite by flotation.Froth flotationFlotation collectorsBauxiteKaoliniteThis paper presents a potential condition to separate kaolinite through flotation when it is present in bauxite ore. This research anticipates a Brazilian industry requirement, considering the tendency towards the need for aluminosilicates removal from bauxite ores, as has already occurred in China. Kaolinite is the most abundant aluminosilicate, and gibbsite is the main aluminum bearing mineral in Brazilian bauxite ores. The first step was a fundamental study involving microflotation experiments with pure samples of kaolinite and gibbsite. Ammonium quaternary salts and amines were used as the collector and corn starch as the depressant. In a fundamental study, the best conditions determined in the first step were evaluated for the flotation of kaolinite from bauxite ore using laboratory scale experiments. Tests with AQ142/starch (pH 10) and CTAB (pH 7) led to satisfactory results. In general, the highest values of alumina/silica mass ratio were obtained with AQ142/starch and the highest values of mass recovery and metallurgical recovery were achieved with CTAB.2017-10-30T12:10:54Z2017-10-30T12:10:54Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfRODRIGUES, O. M. S. et al. Kaolinite removal from bauxite by flotation. REM - International Engineering Journal, v. 69, p. 349, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349>. Acesso em: 25 ago. 2017.1807-0360http://www.repositorio.ufop.br/handle/123456789/9067https://doi.org/10.1590/0370-44672014690093ark:/61566/00130000032kcA REM - International Engineering Journal - autoriza o depósito de cópia de artigos dos professores e alunos da UFOP no Repositório Institucional da UFOP. Licença concedida mediante preenchimento de formulário online em 12 set. 2013.info:eu-repo/semantics/openAccessRodrigues, Otávia Martins SilvaPeres, Antônio Eduardo ClarkHenriques, Andréia BicalhoAmorim, Bárbara Gonçalvesengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOP2024-11-10T14:59:23Zoai:repositorio.ufop.br:123456789/9067Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332024-11-10T14:59:23Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.none.fl_str_mv Kaolinite removal from bauxite by flotation.
title Kaolinite removal from bauxite by flotation.
spellingShingle Kaolinite removal from bauxite by flotation.
Rodrigues, Otávia Martins Silva
Froth flotation
Flotation collectors
Bauxite
Kaolinite
title_short Kaolinite removal from bauxite by flotation.
title_full Kaolinite removal from bauxite by flotation.
title_fullStr Kaolinite removal from bauxite by flotation.
title_full_unstemmed Kaolinite removal from bauxite by flotation.
title_sort Kaolinite removal from bauxite by flotation.
author Rodrigues, Otávia Martins Silva
author_facet Rodrigues, Otávia Martins Silva
Peres, Antônio Eduardo Clark
Henriques, Andréia Bicalho
Amorim, Bárbara Gonçalves
author_role author
author2 Peres, Antônio Eduardo Clark
Henriques, Andréia Bicalho
Amorim, Bárbara Gonçalves
author2_role author
author
author
dc.contributor.author.fl_str_mv Rodrigues, Otávia Martins Silva
Peres, Antônio Eduardo Clark
Henriques, Andréia Bicalho
Amorim, Bárbara Gonçalves
dc.subject.por.fl_str_mv Froth flotation
Flotation collectors
Bauxite
Kaolinite
topic Froth flotation
Flotation collectors
Bauxite
Kaolinite
description This paper presents a potential condition to separate kaolinite through flotation when it is present in bauxite ore. This research anticipates a Brazilian industry requirement, considering the tendency towards the need for aluminosilicates removal from bauxite ores, as has already occurred in China. Kaolinite is the most abundant aluminosilicate, and gibbsite is the main aluminum bearing mineral in Brazilian bauxite ores. The first step was a fundamental study involving microflotation experiments with pure samples of kaolinite and gibbsite. Ammonium quaternary salts and amines were used as the collector and corn starch as the depressant. In a fundamental study, the best conditions determined in the first step were evaluated for the flotation of kaolinite from bauxite ore using laboratory scale experiments. Tests with AQ142/starch (pH 10) and CTAB (pH 7) led to satisfactory results. In general, the highest values of alumina/silica mass ratio were obtained with AQ142/starch and the highest values of mass recovery and metallurgical recovery were achieved with CTAB.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017-10-30T12:10:54Z
2017-10-30T12:10:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv RODRIGUES, O. M. S. et al. Kaolinite removal from bauxite by flotation. REM - International Engineering Journal, v. 69, p. 349, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349>. Acesso em: 25 ago. 2017.
1807-0360
http://www.repositorio.ufop.br/handle/123456789/9067
https://doi.org/10.1590/0370-44672014690093
dc.identifier.dark.fl_str_mv ark:/61566/00130000032kc
identifier_str_mv RODRIGUES, O. M. S. et al. Kaolinite removal from bauxite by flotation. REM - International Engineering Journal, v. 69, p. 349, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349>. Acesso em: 25 ago. 2017.
1807-0360
ark:/61566/00130000032kc
url http://www.repositorio.ufop.br/handle/123456789/9067
https://doi.org/10.1590/0370-44672014690093
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFOP
instname:Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
instname_str Universidade Federal de Ouro Preto (UFOP)
instacron_str UFOP
institution UFOP
reponame_str Repositório Institucional da UFOP
collection Repositório Institucional da UFOP
repository.name.fl_str_mv Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)
repository.mail.fl_str_mv repositorio@ufop.edu.br
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