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Carbothermic Reduction of Zinc and Iron Oxides in Electric Arc Furnace Dust
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou.
Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan.
Metallurgical and Ecological Engineering School, University of Science and Technology, Beijing.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
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2014 (English)In: Journal of Iron and Steel Research International, ISSN 1006-706X, E-ISSN 2210-3988, Vol. 21, no 4, p. 427-432Article in journal (Refereed) Published
Abstract [en]

The reduction of zinc and iron oxides from electric arc furnace dust (EAFD) by carbon was investigated at temperatures between 800 and 1300 °C. The analytic technique employed includes chemical analysis, X-ray fluorescence spectroscopy (XRF), X-ray powder diffraction (XRD), scanning electron microscopy (SEM) equipped with X-ray energy dispersive spectrometry (EDS), and thermodynamic database FactSage 6. 2. It was found that the reduction of zinc and iron oxides depends largely on Boudouad reaction. At 900 °C, zinc exists in tested samples as ZnO, which is reduced in the temperature range of 1000 — 1100 °C. At 1100 °C, 99. 11% of the zinc is evaporated. The metallization ratio of Fe is 79. 19% at 1300 °C, as the content of Fe2+ is still 9. 40%. A higher temperature is thus required for a higher reduction degree of Fe oxides by solid or gaseous carbon

Place, publisher, year, edition, pages
2014. Vol. 21, no 4, p. 427-432
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-8296DOI: 10.1016/S1006-706X(14)60066-2Scopus ID: 2-s2.0-84897496271Local ID: 6ca3670d-e490-4d1f-a352-fb15697bab2eOAI: oai:DiVA.org:ltu-8296DiVA, id: diva2:981188
Note
Validerad; 2014; 20140407 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Yang, Qixing

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