Application of Electromagnetic Field Theory in the Study of Iron-Rich Slag Resistance Mechanism of Low Carbon MgO-C Refractories

Abstract:

Electromagnetic field (EMF) can promote the reaction between the Fe/Mn ion in slag and MgO-C refractories to form Mn-doped MgFe₂O₄ spinel. In order to further study the morphology and characteristics of Mn-doped MgFe₂O₄ spinel, the experiments were respectively carried out in medium-frequency induction furnace and resistance furnace. MgO-C refractories containing 6 wt.% carbon and iron-rich slag containing 53.62 wt.% Fe₂O₃ were used. The results show that the penetration layer in the slag line under EMF is obvious and the reduced Fe from FexO is distributed homogeneously in this layer. However in the resistance furnace having no EMF, there is not MgFe₂O₄ spinel but MgAl₂O₄ spinel formed. The iron content in Mn-doped MgFe₂O₄ spinels decrease dramatically from the erosion layer to penetration layer, while the manganese content in the spinel remains unchangeable.

• Periodical: Key Engineering Materials (Volume 726)
• Pages: 450-454
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.726.450
• Online since: January 2017
• Authors: Yan Chai*, Mei Jie Zhang, Xiang Cheng Li
• Keywords: Application, Electromagnetic Field Theory, Mechanism, MgO-C

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