Adsorption of sulphuric acid on smectite from acidic aqueous solutions

Detalhes bibliográficos
Autor(a) principal: Tavani,E. L.
Data de Publicação: 1999
Outros Autores: Volzone,C.
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=S0366-69131999000500004
Resumo: The adsorption of sulphuric acid on smectite from acidic aqueous solutions was studied. The amounts of cations dissolved in each equilibrium solution were determined by chemical analysis. Simultaneously, the original smectite and the smectite after each test were characterized by infrared, X-ray diffraction and swelling index. The results obtained permitted us to determine that the substitutions of the exchange cations and the chemical attack occurred at very different acid concentrations and treatment times. It was established that during the acid treatment of the smectite, a progressive damage of its crystalline structure was produced. Finally, the influences of the substitution of exchange cations and of the chemical attack in the swelling index were determined.
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spelling Adsorption of sulphuric acid on smectite from acidic aqueous solutionsadsorptionsulfuric acidsmectiteclay linerThe adsorption of sulphuric acid on smectite from acidic aqueous solutions was studied. The amounts of cations dissolved in each equilibrium solution were determined by chemical analysis. Simultaneously, the original smectite and the smectite after each test were characterized by infrared, X-ray diffraction and swelling index. The results obtained permitted us to determine that the substitutions of the exchange cations and the chemical attack occurred at very different acid concentrations and treatment times. It was established that during the acid treatment of the smectite, a progressive damage of its crystalline structure was produced. Finally, the influences of the substitution of exchange cations and of the chemical attack in the swelling index were determined.Associação Brasileira de Cerâmica1999-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69131999000500004Cerâmica v.45 n.295 1999reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0366-69131999000500004info:eu-repo/semantics/openAccessTavani,E. L.Volzone,C.eng2000-03-31T00:00:00Zoai:scielo:S0366-69131999000500004Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2000-03-31T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Adsorption of sulphuric acid on smectite from acidic aqueous solutions
title Adsorption of sulphuric acid on smectite from acidic aqueous solutions
spellingShingle Adsorption of sulphuric acid on smectite from acidic aqueous solutions
Tavani,E. L.
adsorption
sulfuric acid
smectite
clay liner
title_short Adsorption of sulphuric acid on smectite from acidic aqueous solutions
title_full Adsorption of sulphuric acid on smectite from acidic aqueous solutions
title_fullStr Adsorption of sulphuric acid on smectite from acidic aqueous solutions
title_full_unstemmed Adsorption of sulphuric acid on smectite from acidic aqueous solutions
title_sort Adsorption of sulphuric acid on smectite from acidic aqueous solutions
author Tavani,E. L.
author_facet Tavani,E. L.
Volzone,C.
author_role author
author2 Volzone,C.
author2_role author
dc.contributor.author.fl_str_mv Tavani,E. L.
Volzone,C.
dc.subject.por.fl_str_mv adsorption
sulfuric acid
smectite
clay liner
topic adsorption
sulfuric acid
smectite
clay liner
description The adsorption of sulphuric acid on smectite from acidic aqueous solutions was studied. The amounts of cations dissolved in each equilibrium solution were determined by chemical analysis. Simultaneously, the original smectite and the smectite after each test were characterized by infrared, X-ray diffraction and swelling index. The results obtained permitted us to determine that the substitutions of the exchange cations and the chemical attack occurred at very different acid concentrations and treatment times. It was established that during the acid treatment of the smectite, a progressive damage of its crystalline structure was produced. Finally, the influences of the substitution of exchange cations and of the chemical attack in the swelling index were determined.
publishDate 1999
dc.date.none.fl_str_mv 1999-05-01
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=S0366-69131999000500004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69131999000500004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0366-69131999000500004
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.45 n.295 1999
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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