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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/57946
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dc.creatorDiogo Teixeira Moreirapt_BR
dc.creatorArno Heeren de Oliveirapt_BR
dc.creatorAdriana de Souza Medeiros Batistapt_BR
dc.date.accessioned2023-08-18T19:56:26Z-
dc.date.available2023-08-18T19:56:26Z-
dc.date.issued20-11-15-
dc.citation.volume2pt_BR
dc.citation.spage1pt_BR
dc.citation.epage12pt_BR
dc.identifier.doihttps://doi.org/10.3390/proceedings2201296pt_BR
dc.identifier.issn2504-3900pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/57946-
dc.description.resumoSteel slag is considered a by-product of the steel industry and its reuse is a strategy for environmental protection, since it consists of potential polluting materials. Besides, this material may contain chemical elements in such proportion that may be used in strategic materials such as composites and electronics. For example, magnetite (Fe3O4) may be of great interest for its magnetic properties in the production of composites with different applications. On the other hand, rare earth elements (REE) production is vital for new technologies and since traces of the different REE are found in most iron ores, their extraction can be conducted together. However, previous characterization of the slag is necessary; since they vary in mineralogical composition conform to steelmaking operations. Classical characterization techniques of ores such as X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) may be limited to characterize small fractions of materials. Therefore, in this study, neutron activation analysis was used as the characterization technique to confirm the presence of iron and REE in the slag. The steel slag composite sample of the Linz-Donawitz (LD) process was collected in a steelwork localized in the Iron Quadrangle, Minas Gerais, Brazil. The steel slag sample was characterized by instrumental neutron activation analysis (INAA), using the TRIGA MARK I IPR-R1 nuclear research reactor. The results are compared with the characterizations made with XRD and SEM-EDS. Although XRD and EDS results indicated the presence of magnetite in a small proportion, INAA was decisive confirming the presence of REE in the mineralogical composition of the composite sample collected.pt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentMED - DEPARTAMENTO DE ANATOMIA E IMAGEMpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofEnvironment, Green Technology, and Engineering International Conference-
dc.rightsAcesso Abertopt_BR
dc.subjectRare earth elementspt_BR
dc.subjectFe3O4pt_BR
dc.subjectSteel slagpt_BR
dc.subjectINAApt_BR
dc.subject.otherÓxido Ferroso-Férricopt_BR
dc.subject.otherDifração de Raios Xpt_BR
dc.titleCharacterization of the siderurgy slags as the presence of natural radionuclidespt_BR
dc.typeArtigo de Eventopt_BR
dc.url.externahttps://www.mdpi.com/2504-3900/2/20/1296pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6834-7551pt_BR
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