|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Effects of Alumina and Magnesia on Microstructure and Mineralogy of Iron Ore Sinter
||Mingming Zhang, Marcelo W. Andrade
|On-Site Speaker (Planned)
The evolution of microstructure and mineral phases in iron ore sinters have been investigated by X-ray diffraction, optical microscope and scanning electron microscope. It was found that sinter Al2O3, basicity and MgO together with thermal conditions during sintering play an important role in the formation of mineral phases and microstructure in sinter. The low Al2O3 (<2.0 wt%), medium MgO (2.0-2.5 wt%) and high basicity (>3.0) sinter showed higher Tumbler strength, and higher low temperature degradation index (LTD) due to the presence of silico ferrites of calcium and aluminium (SFCA), and magnetite phase, and lower pore phase as compared to low basicity iron ore sinter. The physical and metallurgical properties of sinter improved with increase in solid fuel for higher alumina and magnesia sinter.
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