Fired products of Cr-smectite clays in nitrogen

Detalhes bibliográficos
Autor(a) principal: Volzone,C.
Data de Publicação: 2004
Outros Autores: Cesio,A. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000400008
Resumo: The products of Cr-smectite clays heated to 1350 ° C in nitrogen were evaluated by X-ray diffraction and chemical analysis. Cr-smectite clays were prepared at room temperature by contact between smectite clays and Cr species contained in OH-Cr solutions. The Cr species were prepared using chromium nitrate solution by addition of NaOH solution with OH/Cr = 2. Products of firing in nitrogen at the high temperature were different (magnesia chromite, donathite, iron chromium oxide and picrochromite) depending on the type of isomorphous substitution of the smectite structure and the amount of retained chromium.
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spelling Fired products of Cr-smectite clays in nitrogenCr-smectite clays in nitrogenfired productsX-ray diffraction and chemical analysisThe products of Cr-smectite clays heated to 1350 ° C in nitrogen were evaluated by X-ray diffraction and chemical analysis. Cr-smectite clays were prepared at room temperature by contact between smectite clays and Cr species contained in OH-Cr solutions. The Cr species were prepared using chromium nitrate solution by addition of NaOH solution with OH/Cr = 2. Products of firing in nitrogen at the high temperature were different (magnesia chromite, donathite, iron chromium oxide and picrochromite) depending on the type of isomorphous substitution of the smectite structure and the amount of retained chromium.Brazilian Society of Chemical Engineering2004-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000400008Brazilian Journal of Chemical Engineering v.21 n.4 2004reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322004000400008info:eu-repo/semantics/openAccessVolzone,C.Cesio,A. M.eng2004-10-01T00:00:00Zoai:scielo:S0104-66322004000400008Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2004-10-01T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Fired products of Cr-smectite clays in nitrogen
title Fired products of Cr-smectite clays in nitrogen
spellingShingle Fired products of Cr-smectite clays in nitrogen
Volzone,C.
Cr-smectite clays in nitrogen
fired products
X-ray diffraction and chemical analysis
title_short Fired products of Cr-smectite clays in nitrogen
title_full Fired products of Cr-smectite clays in nitrogen
title_fullStr Fired products of Cr-smectite clays in nitrogen
title_full_unstemmed Fired products of Cr-smectite clays in nitrogen
title_sort Fired products of Cr-smectite clays in nitrogen
author Volzone,C.
author_facet Volzone,C.
Cesio,A. M.
author_role author
author2 Cesio,A. M.
author2_role author
dc.contributor.author.fl_str_mv Volzone,C.
Cesio,A. M.
dc.subject.por.fl_str_mv Cr-smectite clays in nitrogen
fired products
X-ray diffraction and chemical analysis
topic Cr-smectite clays in nitrogen
fired products
X-ray diffraction and chemical analysis
description The products of Cr-smectite clays heated to 1350 ° C in nitrogen were evaluated by X-ray diffraction and chemical analysis. Cr-smectite clays were prepared at room temperature by contact between smectite clays and Cr species contained in OH-Cr solutions. The Cr species were prepared using chromium nitrate solution by addition of NaOH solution with OH/Cr = 2. Products of firing in nitrogen at the high temperature were different (magnesia chromite, donathite, iron chromium oxide and picrochromite) depending on the type of isomorphous substitution of the smectite structure and the amount of retained chromium.
publishDate 2004
dc.date.none.fl_str_mv 2004-12-01
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=S0104-66322004000400008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000400008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322004000400008
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 Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.21 n.4 2004
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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