Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4

Detalhes bibliográficos
Autor(a) principal: Mendonça,Luciano Aragão de
Data de Publicação: 2007
Outros Autores: Adamian,Rupen, Afonso,Julio Carlos
Tipo de documento: Relatório
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200041
Resumo: This work presents a study on the determination of the optimal experimental conditions for processing spent commercial zeolites in order to recover lanthanide elements and eventually other elements. The process is based on the fusion of the sample with potassium hydrogenosulfate (KHSO4). Three experimental parameters were studied: temperature, reaction time and catalyst/flux mass ratio. After fusion the solid was dissolved in water and the amount of insoluble matter was used to determine the efficiency of the process. The optimized experimental parameters depend on the composition of the sample processed. Under such conditions the insoluble residue corresponds to SiO2. Lanthanide elements and aluminum present in solution were isolated by conventional precipitation techniques; the yields were at least 75 wt%. The final generated wastes correspond to neutral colorless solutions containing alkali chlorides/sulfates and solids that can be disposed of in industrial dumps.
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spelling Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4spent zeolitesmetal recoverywaste managementThis work presents a study on the determination of the optimal experimental conditions for processing spent commercial zeolites in order to recover lanthanide elements and eventually other elements. The process is based on the fusion of the sample with potassium hydrogenosulfate (KHSO4). Three experimental parameters were studied: temperature, reaction time and catalyst/flux mass ratio. After fusion the solid was dissolved in water and the amount of insoluble matter was used to determine the efficiency of the process. The optimized experimental parameters depend on the composition of the sample processed. Under such conditions the insoluble residue corresponds to SiO2. Lanthanide elements and aluminum present in solution were isolated by conventional precipitation techniques; the yields were at least 75 wt%. The final generated wastes correspond to neutral colorless solutions containing alkali chlorides/sulfates and solids that can be disposed of in industrial dumps.Sociedade Brasileira de Química2007-04-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200041Química Nova v.30 n.2 2007reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422007000200041info:eu-repo/semantics/openAccessMendonça,Luciano Aragão deAdamian,RupenAfonso,Julio Carlospor2007-03-13T00:00:00Zoai:scielo:S0100-40422007000200041Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2007-03-13T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
title Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
spellingShingle Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
Mendonça,Luciano Aragão de
spent zeolites
metal recovery
waste management
title_short Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
title_full Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
title_fullStr Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
title_full_unstemmed Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
title_sort Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4
author Mendonça,Luciano Aragão de
author_facet Mendonça,Luciano Aragão de
Adamian,Rupen
Afonso,Julio Carlos
author_role author
author2 Adamian,Rupen
Afonso,Julio Carlos
author2_role author
author
dc.contributor.author.fl_str_mv Mendonça,Luciano Aragão de
Adamian,Rupen
Afonso,Julio Carlos
dc.subject.por.fl_str_mv spent zeolites
metal recovery
waste management
topic spent zeolites
metal recovery
waste management
description This work presents a study on the determination of the optimal experimental conditions for processing spent commercial zeolites in order to recover lanthanide elements and eventually other elements. The process is based on the fusion of the sample with potassium hydrogenosulfate (KHSO4). Three experimental parameters were studied: temperature, reaction time and catalyst/flux mass ratio. After fusion the solid was dissolved in water and the amount of insoluble matter was used to determine the efficiency of the process. The optimized experimental parameters depend on the composition of the sample processed. Under such conditions the insoluble residue corresponds to SiO2. Lanthanide elements and aluminum present in solution were isolated by conventional precipitation techniques; the yields were at least 75 wt%. The final generated wastes correspond to neutral colorless solutions containing alkali chlorides/sulfates and solids that can be disposed of in industrial dumps.
publishDate 2007
dc.date.none.fl_str_mv 2007-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200041
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422007000200041
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422007000200041
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 Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.30 n.2 2007
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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