Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions

Detalhes bibliográficos
Autor(a) principal: Morais,I. C. G.
Data de Publicação: 2020
Outros Autores: Silva,I. A., Buriti,B. M. A. B., Fernandes,J. V., Silva,D. S., Neves,G. A., Ferreira,H. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132020000100081
Resumo: Abstract In Brazil, bentonite clays are not naturally sodic and it is an industrial practice the sodium additivation, since sodium ion expands their lamellae allowing a larger amount of water to penetrate. The objective was to analyze the influences of the use of sodium carbonate on the clay during the additivation process, the moisture content and the cure time on cation exchange and viscosity of bentonite clay dispersions for water-based drilling fluids, since there is a shortage of studies on this subject. Newly discovered bentonite clays in Paraíba State, Brazil, were chemically, physically and mineralogically characterized and were additivated with sodium carbonate in aqueous solution (process 1) or in powder form (process 2). Samples with 25% to 60% of moisture (dry basis) were prepared and submitted to cure times of 7 to 45 days. Process 1, as expected, showed better results of cation exchange capacity, viscosity and filtrate volume. The ideal cure time was 15 days. After this period there was a reversal of the cation exchange reactions.
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spelling Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersionsbentonite claysadditivationcation exchange capacityviscositydrilling fluidsAbstract In Brazil, bentonite clays are not naturally sodic and it is an industrial practice the sodium additivation, since sodium ion expands their lamellae allowing a larger amount of water to penetrate. The objective was to analyze the influences of the use of sodium carbonate on the clay during the additivation process, the moisture content and the cure time on cation exchange and viscosity of bentonite clay dispersions for water-based drilling fluids, since there is a shortage of studies on this subject. Newly discovered bentonite clays in Paraíba State, Brazil, were chemically, physically and mineralogically characterized and were additivated with sodium carbonate in aqueous solution (process 1) or in powder form (process 2). Samples with 25% to 60% of moisture (dry basis) were prepared and submitted to cure times of 7 to 45 days. Process 1, as expected, showed better results of cation exchange capacity, viscosity and filtrate volume. The ideal cure time was 15 days. After this period there was a reversal of the cation exchange reactions.Associação Brasileira de Cerâmica2020-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132020000100081Cerâmica v.66 n.377 2020reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132020663772695info:eu-repo/semantics/openAccessMorais,I. C. G.Silva,I. A.Buriti,B. M. A. B.Fernandes,J. V.Silva,D. S.Neves,G. A.Ferreira,H. S.eng2019-12-10T00:00:00Zoai:scielo:S0366-69132020000100081Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2019-12-10T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
title Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
spellingShingle Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
Morais,I. C. G.
bentonite clays
additivation
cation exchange capacity
viscosity
drilling fluids
title_short Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
title_full Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
title_fullStr Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
title_full_unstemmed Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
title_sort Influence of the additivation process on cation exchange capacity and viscosity of bentonitic clay dispersions
author Morais,I. C. G.
author_facet Morais,I. C. G.
Silva,I. A.
Buriti,B. M. A. B.
Fernandes,J. V.
Silva,D. S.
Neves,G. A.
Ferreira,H. S.
author_role author
author2 Silva,I. A.
Buriti,B. M. A. B.
Fernandes,J. V.
Silva,D. S.
Neves,G. A.
Ferreira,H. S.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Morais,I. C. G.
Silva,I. A.
Buriti,B. M. A. B.
Fernandes,J. V.
Silva,D. S.
Neves,G. A.
Ferreira,H. S.
dc.subject.por.fl_str_mv bentonite clays
additivation
cation exchange capacity
viscosity
drilling fluids
topic bentonite clays
additivation
cation exchange capacity
viscosity
drilling fluids
description Abstract In Brazil, bentonite clays are not naturally sodic and it is an industrial practice the sodium additivation, since sodium ion expands their lamellae allowing a larger amount of water to penetrate. The objective was to analyze the influences of the use of sodium carbonate on the clay during the additivation process, the moisture content and the cure time on cation exchange and viscosity of bentonite clay dispersions for water-based drilling fluids, since there is a shortage of studies on this subject. Newly discovered bentonite clays in Paraíba State, Brazil, were chemically, physically and mineralogically characterized and were additivated with sodium carbonate in aqueous solution (process 1) or in powder form (process 2). Samples with 25% to 60% of moisture (dry basis) were prepared and submitted to cure times of 7 to 45 days. Process 1, as expected, showed better results of cation exchange capacity, viscosity and filtrate volume. The ideal cure time was 15 days. After this period there was a reversal of the cation exchange reactions.
publishDate 2020
dc.date.none.fl_str_mv 2020-03-01
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=S0366-69132020000100081
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132020000100081
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132020663772695
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.66 n.377 2020
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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