Produção Nacional
Revisado por pares
Characterization study of electric arc furnace dust phases
2006; Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímer; Volume: 9; Issue: 1 Linguagem: Inglês
10.1590/s1516-14392006000100009
ISSN1980-5373
AutoresJanaína Gonçalves Maria da Silva Machado, Feliciane Andrade Brehm, Carlos Alberto Mendes Moraes, Carlos Alberto dos Santos, Antônio Cézar Faria Vilela,
Tópico(s)Corrosion Behavior and Inhibition
ResumoElectric arc furnace dust (EAFD) is a solid waste generated in the collection of particulate material during steelmaking process in electric arc furnace. The aim of this work is to carry out a chemical and structural characterization of two EAFD samples with different Zn contents. Optical emission spectroscopy via inductively coupled plasma (ICP), X ray diffractometry (XRD) and Mössbauer spectroscopy analysis were carried out in such EAFD samples. From XRD measurements, the samples exhibits the following phases: ZnFe2O4, Fe3O4, MgFe2O4, FeCr2O4, Ca0.15Fe2.85O4, MgO, Mn3O4, SiO2 and ZnO. The phases detected by Mössbauer spectroscopy were: ZnFe2O4, Fe3O4, Ca0.15Fe2.85O4 and FeCr2O4. Magnesium ferrite (MgFe2O4), observed in the XRD patterns as overlapped peaks, was not identified in the Mössbauer spectroscopy analysis.
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