Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting

Detalhes bibliográficos
Autor(a) principal: Prestes,E.
Data de Publicação: 2009
Outros Autores: Chinelatto,A. S. A., Resende,W. 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=S0366-69132009000100008
Resumo: Burned magnesia-chromite bricks are the standard product for the lining of furnaces in lead industry, where the short service life is a great problem. Used sintered magnesia-chromite brick sample from short rotary furnace lining, sent by a secondary lead manufacturer, showed parallel cracks to the hot face due to structural spalling damage. The refractory infiltrated region and slag interface were analyzed using a scanning electron microscope with an energy dispersive spectroscopy analyzer, and X-ray diffraction powder analysis. Crucible corrosion test was performed to evaluate the influence of slag attack. The results showed that the structural spalling was due to strong Pb-infiltration of the refractory microstructure by bath components of the furnace (metallic lead and lead sulphite) during the reduction process and that the slag infiltration had little contribution due to the good resistance of the magnesia-chromite bricks to FeO rich slag attack.
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spelling Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smeltingshort rotary furnace of secondary lead smeltingpost mortem analysisused sintered magnesia-chromite brickBurned magnesia-chromite bricks are the standard product for the lining of furnaces in lead industry, where the short service life is a great problem. Used sintered magnesia-chromite brick sample from short rotary furnace lining, sent by a secondary lead manufacturer, showed parallel cracks to the hot face due to structural spalling damage. The refractory infiltrated region and slag interface were analyzed using a scanning electron microscope with an energy dispersive spectroscopy analyzer, and X-ray diffraction powder analysis. Crucible corrosion test was performed to evaluate the influence of slag attack. The results showed that the structural spalling was due to strong Pb-infiltration of the refractory microstructure by bath components of the furnace (metallic lead and lead sulphite) during the reduction process and that the slag infiltration had little contribution due to the good resistance of the magnesia-chromite bricks to FeO rich slag attack.Associação Brasileira de Cerâmica2009-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132009000100008Cerâmica v.55 n.333 2009reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0366-69132009000100008info:eu-repo/semantics/openAccessPrestes,E.Chinelatto,A. S. A.Resende,W. S.eng2009-05-12T00:00:00Zoai:scielo:S0366-69132009000100008Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2009-05-12T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
title Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
spellingShingle Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
Prestes,E.
short rotary furnace of secondary lead smelting
post mortem analysis
used sintered magnesia-chromite brick
title_short Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
title_full Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
title_fullStr Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
title_full_unstemmed Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
title_sort Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
author Prestes,E.
author_facet Prestes,E.
Chinelatto,A. S. A.
Resende,W. S.
author_role author
author2 Chinelatto,A. S. A.
Resende,W. S.
author2_role author
author
dc.contributor.author.fl_str_mv Prestes,E.
Chinelatto,A. S. A.
Resende,W. S.
dc.subject.por.fl_str_mv short rotary furnace of secondary lead smelting
post mortem analysis
used sintered magnesia-chromite brick
topic short rotary furnace of secondary lead smelting
post mortem analysis
used sintered magnesia-chromite brick
description Burned magnesia-chromite bricks are the standard product for the lining of furnaces in lead industry, where the short service life is a great problem. Used sintered magnesia-chromite brick sample from short rotary furnace lining, sent by a secondary lead manufacturer, showed parallel cracks to the hot face due to structural spalling damage. The refractory infiltrated region and slag interface were analyzed using a scanning electron microscope with an energy dispersive spectroscopy analyzer, and X-ray diffraction powder analysis. Crucible corrosion test was performed to evaluate the influence of slag attack. The results showed that the structural spalling was due to strong Pb-infiltration of the refractory microstructure by bath components of the furnace (metallic lead and lead sulphite) during the reduction process and that the slag infiltration had little contribution due to the good resistance of the magnesia-chromite bricks to FeO rich slag attack.
publishDate 2009
dc.date.none.fl_str_mv 2009-03-01
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=S0366-69132009000100008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132009000100008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0366-69132009000100008
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.55 n.333 2009
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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