Kaolinite removal from bauxite by flotation.
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
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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Rodrigues, Otávia Martins SilvaPeres, Antônio Eduardo ClarkHenriques, Andréia BicalhoAmorim, Bárbara Gonçalves2017-10-30T12:10:54Z2017-10-30T12:10:54Z2016RODRIGUES, 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/10.1590/0370-44672014690093This 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.A 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/openAccessFroth flotationFlotation collectorsBauxiteKaoliniteKaolinite removal from bauxite by flotation.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/9067/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_KaoliniteRemovalBauxite.pdfARTIGO_KaoliniteRemovalBauxite.pdfapplication/pdf278757http://www.repositorio.ufop.br/bitstream/123456789/9067/1/ARTIGO_KaoliniteRemovalBauxite.pdf18cf5189322a290a3006dabddd9f0ca6MD51123456789/90672020-02-18 07:02:59.142oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332020-02-18T12:02:59Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.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.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2017-10-30T12:10:54Z |
dc.date.available.fl_str_mv |
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.citation.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. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/9067 |
dc.identifier.issn.none.fl_str_mv |
1807-0360 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1590/0370-44672014690093 |
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 |
url |
http://www.repositorio.ufop.br/handle/123456789/9067 https://doi.org/10.1590/0370-44672014690093 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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