Post mortem analysis of burned magnesia-chromite brick used in short rotary furnace of secondary lead smelting
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
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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Cerâmica (São Paulo. Online) |
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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 |
_version_ |
1748936781376520192 |