MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system

Detalhes bibliográficos
Autor(a) principal: Almeida, Rodolfo Arnaldo Montecinos de
Data de Publicação: 2018
Outros Autores: Vieira, Deisi, Bielefeldt, Wagner Viana, Vilela, Antonio Cezar Faria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/185172
Resumo: Electric arc furnace (EAF) slag has a range of functions, including improving energy efficiency through the "slag foaming" phenomenon. As such, the study of slag is important in EAFs. One of the factors that determine foaming quality and efficiency is the presence of solid particles. MgO saturation is highly significant since, in addition to ensuring the presence of solid particles, it also ensures chemical compatibility to minimize refractory consumption. The present study aims to examine MgO saturation, using the software FactSage v.6.4 for all calculations, in the CaO-SiO2-FeO-MgO-Al2O3 slag system and the influence of binary basicity, FeO and Al2O3 content on this system. Ternary diagrams revealed the influence of Al2O3 content on the liquid field and other phases present. Isothermal saturation diagrams (ISDs) were constructed, showing the same dual saturation points found in the ternary diagrams. The ISDs were validated by comparing the results of different heats in terms of the electrical energy consumption. The closer the heat is to the MgO saturation line, the less energy is consumed.
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spelling Almeida, Rodolfo Arnaldo Montecinos deVieira, DeisiBielefeldt, Wagner VianaVilela, Antonio Cezar Faria2018-11-28T02:45:39Z20181516-1439http://hdl.handle.net/10183/185172001081562Electric arc furnace (EAF) slag has a range of functions, including improving energy efficiency through the "slag foaming" phenomenon. As such, the study of slag is important in EAFs. One of the factors that determine foaming quality and efficiency is the presence of solid particles. MgO saturation is highly significant since, in addition to ensuring the presence of solid particles, it also ensures chemical compatibility to minimize refractory consumption. The present study aims to examine MgO saturation, using the software FactSage v.6.4 for all calculations, in the CaO-SiO2-FeO-MgO-Al2O3 slag system and the influence of binary basicity, FeO and Al2O3 content on this system. Ternary diagrams revealed the influence of Al2O3 content on the liquid field and other phases present. Isothermal saturation diagrams (ISDs) were constructed, showing the same dual saturation points found in the ternary diagrams. The ISDs were validated by comparing the results of different heats in terms of the electrical energy consumption. The closer the heat is to the MgO saturation line, the less energy is consumed.application/pdfengMaterials research : ibero-american journal of materials. São Carlos, SP. Vol. 21, no. 1 (2018), e20170041, p. 1-8Fornos elétricos a arcoMagnésioSaturaçãoEscóriaEAFMgO saturationDual saturationMgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag systeminfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001081562.pdf.txt001081562.pdf.txtExtracted Texttext/plain26470http://www.lume.ufrgs.br/bitstream/10183/185172/2/001081562.pdf.txt1aa8eb062b5ca0b8789f8a8223b21c48MD52ORIGINAL001081562.pdfTexto completo (inglês)application/pdf2080100http://www.lume.ufrgs.br/bitstream/10183/185172/1/001081562.pdf29124b5e436b49d0d317a73540ac26e8MD5110183/1851722018-11-29 02:46:42.140221oai:www.lume.ufrgs.br:10183/185172Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-11-29T04:46:42Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
title MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
spellingShingle MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
Almeida, Rodolfo Arnaldo Montecinos de
Fornos elétricos a arco
Magnésio
Saturação
Escória
EAF
MgO saturation
Dual saturation
title_short MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
title_full MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
title_fullStr MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
title_full_unstemmed MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
title_sort MgO saturation analisys of CaO-SiO2-FeO-MgO-Al2O3 slag system
author Almeida, Rodolfo Arnaldo Montecinos de
author_facet Almeida, Rodolfo Arnaldo Montecinos de
Vieira, Deisi
Bielefeldt, Wagner Viana
Vilela, Antonio Cezar Faria
author_role author
author2 Vieira, Deisi
Bielefeldt, Wagner Viana
Vilela, Antonio Cezar Faria
author2_role author
author
author
dc.contributor.author.fl_str_mv Almeida, Rodolfo Arnaldo Montecinos de
Vieira, Deisi
Bielefeldt, Wagner Viana
Vilela, Antonio Cezar Faria
dc.subject.por.fl_str_mv Fornos elétricos a arco
Magnésio
Saturação
Escória
topic Fornos elétricos a arco
Magnésio
Saturação
Escória
EAF
MgO saturation
Dual saturation
dc.subject.eng.fl_str_mv EAF
MgO saturation
Dual saturation
description Electric arc furnace (EAF) slag has a range of functions, including improving energy efficiency through the "slag foaming" phenomenon. As such, the study of slag is important in EAFs. One of the factors that determine foaming quality and efficiency is the presence of solid particles. MgO saturation is highly significant since, in addition to ensuring the presence of solid particles, it also ensures chemical compatibility to minimize refractory consumption. The present study aims to examine MgO saturation, using the software FactSage v.6.4 for all calculations, in the CaO-SiO2-FeO-MgO-Al2O3 slag system and the influence of binary basicity, FeO and Al2O3 content on this system. Ternary diagrams revealed the influence of Al2O3 content on the liquid field and other phases present. Isothermal saturation diagrams (ISDs) were constructed, showing the same dual saturation points found in the ternary diagrams. The ISDs were validated by comparing the results of different heats in terms of the electrical energy consumption. The closer the heat is to the MgO saturation line, the less energy is consumed.
publishDate 2018
dc.date.accessioned.fl_str_mv 2018-11-28T02:45:39Z
dc.date.issued.fl_str_mv 2018
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/185172
dc.identifier.issn.pt_BR.fl_str_mv 1516-1439
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url http://hdl.handle.net/10183/185172
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Materials research : ibero-american journal of materials. São Carlos, SP. Vol. 21, no. 1 (2018), e20170041, p. 1-8
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
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reponame_str Repositório Institucional da UFRGS
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