2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 10: Battery, Recycling, Environmental, Mining

Editors:Kongoli F, Kumar V, Aifantis K, Pagnanelli F
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:220 pages
ISBN:978-1-987820-54-6
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Recovery of iron oxides by oxidation of molten steelmaking slag in water vapour

    Juncheng Li1;
    1UNIVERSITY OF WARWICK, Coventry, United Kingdom (Great Britain);
    Type of Paper: Regular
    Id Paper: 403
    Topic: 7

    Abstract:

    Iron oxides were recycled from steelmaking slag in the forms of magnetically susceptible compounds by oxidation of molten steelmaking slag in water vapour. In this paper, confocal scanning laser microscope (CSLM) was used to observe the crystal precipitating behavior of the CaO-SiO2-FeO-MnO-MgO-Al2O3 melt during the cooling process. With the decrease of slag basicity (CaO/SiO2) from 2.0 to 1.0, the primary phase changed from Ca2SiO4 to Fe3O4. In addition, with the increase of slag basicity from 1.0 to 1.5 to 2.0, the recovery ratio of iron oxide in the slag first increase and then decrease.

    Keywords:

    Ferrous; MoltenSalts; Recycling; Slags;

    Cite this article as:

    Li J. Recovery of iron oxides by oxidation of molten steelmaking slag in water vapour. In: Kongoli F, Kumar V, Aifantis K, Pagnanelli F, editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 10: Battery, Recycling, Environmental, Mining. Volume 10. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 127-128.