Characterization study of electric arc furnace dust phases

Materials Research

Janaína Gonçalves Maria Da Silva Machado²  Feliciane Andrade Brehm¹  Carlos Alberto Mendes Moraes¹  Carlos Alberto Dos Santos¹  Antônio Cezar Faria Vilela² 

[1] ,Federal University of Rio Grande do Sul LASID Iron and Steelmaking Research GroupPorto Alegre RS

关键词: EAFD;    characterization;    XRD;    Mössbauer spectroscopy;   

DOI  :  10.1590/S1516-14392006000100009

来源: SciELO

【 摘 要 】

Electric 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.

【 授权许可】

CC BY   
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