Abstract
Electric arc furnace (EAF) dust is an important secondary resource that should be recycled to enhance its considerable economic value and potential environmental benefit. In this study, a low-zinc EAF dust was characterized by various techniques, including chemical titration, X-ray diffraction, granulometric analysis, scanning electron microscopy and thermogravimetry. It is shown that the dust contains 2.08 wt% Zn, 23.16 wt% Fe and 19.84 wt% Ca, accompanying small amounts of Cr, Pb, etc. Magnetite, calcium ferrite and zinc ferrite are the main phase constituents. The majority (90%) of particles have size less than 137.862 μm. According to these characteristics, it is expected that the use of microwave energy for intensification of the reduction of EAF dust in the presence of biochar will succeed in the dust recycling by promoting the processing efficiency with elimination of secondary hazardous pollutants.
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References
Dutra AJB, Paiva PRP, Tavares LM (2006) Alkaline leaching of zinc from electric arc furnace steel dust. Miner Eng 19:478–485
Suetens T, Klaasen B, Van Acker K, Blanpain B (2014) Comparision of electric arc furnace dust treatment technologies using energy efficiency. J Clean Prod 65:152–167
Nolasc-Sobrinho PJ, Espinosa DCR, Tenorio JAS (2003) Characterization of dusts and sludges generated during stainless steel production in Brazilian industries. Ironmaking Steelmaking 30:11–17
Orhan G (2005) Leaching and cementation of heavy metals from electric arc furnace dust in alkaline medium. Hydrometallurgy 78:236–245
Pickles CA (2008) Thermodynamic analysis of the selective carbothermic reduction of electric arc furnace dust. J Hazard Mater 150:265–278
Lis T, Nowacki K, Żelichowska M, Kania H (2015) Innovation in metallurgical waste management. Metalurgija 54:283–285
Sofilić T, Rastovčan-Mioč A, Cerjan-Stefanović S, Novosel-Radovi V, Jenko M (2004) Characterization of steel mill electric-arc furnace dust. J Hazard Mater 109:59–70
Suetens T, Guo M, Van Acker K, Blanpain B (2015) Formation of the ZnFe2O4 phase in an electric arc furnace off-gas treatment system. J Hazard Mater 287:180–187
Al-Harahsheh M, Kingman S, Al-Makhadmah L, Hamilton IE (2014) Microwave treatment of electric arc furnace dust with pvc: dielectric characterization and pyrolysis-leaching. J Hazard Mater 274:87–97
Peng Z, Hwang JY, Mouris J, Hutcheon R, Huang X (2010) Microwave penetration depth in materials with non-zero magnetic susceptibility. ISIJ Int 50:1590–1596
Peng Z, Hwang JY (2015) Microwave-assisted metallurgy. Int Mater Rev 60:30–63
Tang H, Qi T, Qin Y (2015) Production of low-phosphorus molten iron from high-phosphorus oolitic hematite using biomass char. JOM 67:1956–1965
Motasemi F, Afzal MT (2013) A review on the microwave-assisted pyrolysis technique. Renew Sustain Energy Rev 28:317–330
Acknowledgements
This work was supported by the Innovation-Driven Program of Central South University under Grant 2016CXS021, the Shenghua Lieying Program of Central South University under Grant 502035001, and the Fundamental Research Funds for the Central Universities of Central South University under Grant 2016zzts464.
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© 2017 The Minerals, Metals & Materials Society
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Peng, Z. et al. (2017). Characterization of Low-Zinc Electric Arc Furnace Dust. In: Ikhmayies, S., et al. Characterization of Minerals, Metals, and Materials 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51382-9_12
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DOI: https://doi.org/10.1007/978-3-319-51382-9_12
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