ON THE USE OF KOVDOR IRON ORE IN SINTERING PROCESS
https://doi.org/10.17073/0368-0797-2018-5-413-415
Abstract
Recently, the demand for iron ore concentrates of the Kovdor deposit has been maintained, despite the complexity of their use for the production of man-made raw materials. Magnetite of Kovdor ore has a heterogeneous structure and its iron does not participate in melt formation processes during sintering of agglomerates. Therefore, up to the basicity of 2.0, a silicate glass phase is a binder of ore grains of the finished product. With the increase in basicity above 2.0, the mineral composition and microstructure of the agglomerates change. Magnetite is oxidized to hematite, an alumino-siliciferite appears on the hematite contact with the high-calcium melt, the residual melt crystallizes to form a titanium-containing silicate.
About the Authors
T. Ya. Malysheva
National University of Science and Technology “MISIS” (MISIS)
Russian Federation
Cand. Sci. (Geol.-Mineralogical), Professor of Chair “Energy-efficient and Resource-saving Industrial Technologies”
Russian Federation
Cand. Sci. (Geol.-Mineralogical), Professor of Chair “Energy-efficient and Resource-saving Industrial Technologies”
S. A. Pisarev
National University of Science and Technology “MISIS” (MISIS)
Russian Federation
Postgraduate of the Chair “Energy-efficient and Resource-saving Industrial Technologies”
Russian Federation
Postgraduate of the Chair “Energy-efficient and Resource-saving Industrial Technologies”
A. R. Makavetskas
National University of Science and Technology “MISIS” (MISIS)
Russian Federation
Senior Engineer
Russian Federation
Senior Engineer
Yu. Yu. Fishchenko
National University of Science and Technology “MISIS” (MISIS)
Russian Federation
Engineer
Russian Federation
Engineer
References
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Review
For citations:
Malysheva T.Ya., Pisarev S.A., Makavetskas A.R., Fishchenko Yu.Yu. ON THE USE OF KOVDOR IRON ORE IN SINTERING PROCESS. Izvestiya. Ferrous Metallurgy. 2018;61(5):413-415. (In Russ.) https://doi.org/10.17073/0368-0797-2018-5-413-415
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