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: REM - International Engineering Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349
Resumo: Abstract 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 flotationfroth flotationflotation collectorskaolinitebauxiteAbstract 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.Fundação Gorceix2016-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349REM - International Engineering Journal v.69 n.3 2016reponame:REM - International Engineering Journalinstname:Fundação Gorceix (FG)instacron:FG10.1590/0370-44672014690093info:eu-repo/semantics/openAccessRodrigues,Otávia Martins SilvaPeres,Antônio Eduardo ClarkHenriques,Andréia BicalhoAmorim,Bárbara Gonçalveseng2016-08-10T00:00:00Zoai:scielo:S2448-167X2016000300349Revistahttps://www.rem.com.br/?lang=pt-brPRIhttps://old.scielo.br/oai/scielo-oai.php||editor@rem.com.br2448-167X2448-167Xopendoar:2016-08-10T00:00REM - International Engineering Journal - Fundação Gorceix (FG)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
kaolinite
bauxite
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
kaolinite
bauxite
topic froth flotation
flotation collectors
kaolinite
bauxite
description Abstract 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 2016-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2016000300349
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0370-44672014690093
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Gorceix
publisher.none.fl_str_mv Fundação Gorceix
dc.source.none.fl_str_mv REM - International Engineering Journal v.69 n.3 2016
reponame:REM - International Engineering Journal
instname:Fundação Gorceix (FG)
instacron:FG
instname_str Fundação Gorceix (FG)
instacron_str FG
institution FG
reponame_str REM - International Engineering Journal
collection REM - International Engineering Journal
repository.name.fl_str_mv REM - International Engineering Journal - Fundação Gorceix (FG)
repository.mail.fl_str_mv ||editor@rem.com.br
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