TY - JOUR T2 - Journal of Mining and Metallurgy, Section B: Metallurgy TI - Mineral phases in iron ore sinters produced with oak sawdust VL - 54 IS - 1 SP - 9 EP - 20 PY - 2018 DO - 10.2298/JMMB160923010M AU - Mežibrický R. AU - Fröhlichová M. AD - a Technical University of Košice, Faculty of Materials, Metallurgy and Recycling, Institute of Metallurgy, Košice, Slovakia b State Key Laboratory of Advanced Metallurgy, University of Science and Technology, Beijing, China; AB - In this paper, the effect of oak sawdust – a cheap substitute fuel on the quality of sinter in terms of its phase composition is evaluated. The samples of sinters prepared with 5, 9, and 13% equivalent fixed carbon substitution of coke breeze by oak sawdust were analyzed by light microscopy, SEM-EDS and powder XRD analysis. The microstructure of sinters in places with fuel residues consisted of well-integrated secondary mineral phases, confirming good conditions for sintering. The phase analysis has shown a predominance of low-Fe SFCA modification over the high-Fe SFCA-I and the increasing trend in the ratio of magnetite with an increasing degree of fuel substitution up to 8%. As a conclusion, the sinters made with a partial replacement of fuel are in terms of the total phase composition comparable to sinter fueled with coke only and therefore qualitatively satisfactory for blast furnace process. KW - Fayalite KW - Water vapor KW - Oxidation behavior KW - Hydrogen KW - Magnetite N1 - Correspondence Address: R. Mežibrický, Technical University of Košice, Faculty of Materials, Metallurgy and Recycling, Institute of Metallurgy, Košice, Slovakia email: roland.mezibricky@tuke.sk N1 - J. Min. Metall. Sect. B-Metall. 54 (1) B (2018) 9-20. DOI:10.2298/JMMB160923010M PB - Technical Faculty in Bor SN - 14505339 (ISSN) LA - English J2 - J. Min. Metall. Sect. B Metall. M3 - Article ER