Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização

Clay is often employed as a catalyst, but quartz impurities can decrease the catalytic efficiency. Fine particles of clay can be purified by flotation. We examined the cationic surfactant hexadecyltrimethylammonium bromide (HTAB), the anionic sodium dodecyl sulfate (SDS) and the non-ionic TRITON X-1...

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Principais autores: Piasson, Janaina, Wittee, Christian, Bertella, Francine, Penha, Fábio G., Pergher, Sibele Berenice Castellã
Formato: article
Idioma:pt_BR
Publicado em: Sociedade Brasileira de Química
Assuntos:
Flotation
Clay
Surfactants
Endereço do item:https://repositorio.ufrn.br/jspui/handle/123456789/29183
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spelling ri-123456789-291832021-02-15T19:03:53Z Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização Flotation of a quartz-clay mixture with surfactants and subsequent pillaring studies Piasson, Janaina Wittee, Christian Bertella, Francine Penha, Fábio G. Pergher, Sibele Berenice Castellã Flotation Clay Surfactants Clay is often employed as a catalyst, but quartz impurities can decrease the catalytic efficiency. Fine particles of clay can be purified by flotation. We examined the cationic surfactant hexadecyltrimethylammonium bromide (HTAB), the anionic sodium dodecyl sulfate (SDS) and the non-ionic TRITON X-100 for separating the quartz impurities from clay. Using X-ray diffraction, the separation was monitored for changes in the peaks corresponding to clay and quartz. Cationic surfactant HTAB was most effective in separating the quartz-clay mixture and the selectivity can be explained by internal adsorption of the surfactant onto the clay and external adsorption onto the quartz. 2020-06-09T01:15:16Z 2020-06-09T01:15:16Z 2011 article PLASSON, J.; WITTEE, C.; BERTELLA, F.; PENHA, F. G.; PERGHER, Sibele Berenice Castellã; LENGLER, H. Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização. Química Nova (Impresso), [s. l.], v. 34, p. 468-471, 2011. ISSN 0100-4042. DOI https://doi.org/10.1590/S0100-40422011000300019. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000300019. Acesso em: 08 jun. 2020. 0100-4042 https://repositorio.ufrn.br/jspui/handle/123456789/29183 10.1590/S0100-40422011000300019 pt_BR Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Sociedade Brasileira de Química
institution Repositório Institucional
collection RI - UFRN
language pt_BR
topic Flotation
Clay
Surfactants
spellingShingle Flotation
Clay
Surfactants
Piasson, Janaina
Wittee, Christian
Bertella, Francine
Penha, Fábio G.
Pergher, Sibele Berenice Castellã
Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
description Clay is often employed as a catalyst, but quartz impurities can decrease the catalytic efficiency. Fine particles of clay can be purified by flotation. We examined the cationic surfactant hexadecyltrimethylammonium bromide (HTAB), the anionic sodium dodecyl sulfate (SDS) and the non-ionic TRITON X-100 for separating the quartz impurities from clay. Using X-ray diffraction, the separation was monitored for changes in the peaks corresponding to clay and quartz. Cationic surfactant HTAB was most effective in separating the quartz-clay mixture and the selectivity can be explained by internal adsorption of the surfactant onto the clay and external adsorption onto the quartz.
format article
author Piasson, Janaina
Wittee, Christian
Bertella, Francine
Penha, Fábio G.
Pergher, Sibele Berenice Castellã
author_facet Piasson, Janaina
Wittee, Christian
Bertella, Francine
Penha, Fábio G.
Pergher, Sibele Berenice Castellã
author_sort Piasson, Janaina
title Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
title_short Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
title_full Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
title_fullStr Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
title_full_unstemmed Flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
title_sort flotação da mistura argila-quartzo com surfactantes e estudos de pilarização
publisher Sociedade Brasileira de Química
publishDate 2020
url https://repositorio.ufrn.br/jspui/handle/123456789/29183
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AT bertellafrancine flotacaodamisturaargilaquartzocomsurfactanteseestudosdepilarizacao
AT penhafabiog flotacaodamisturaargilaquartzocomsurfactanteseestudosdepilarizacao
AT perghersibeleberenicecastella flotacaodamisturaargilaquartzocomsurfactanteseestudosdepilarizacao
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