|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Addition of Ilmenite Ore to Hematite Ore for Phase Development of Sinter
||Edson Kugara Chiwandika, Sung-Mo Jung
|On-Site Speaker (Planned)
The effects of adding 5 to 25 wt% of ilmenite ore to hematite ore sinter were investigated to clarify the phase development. The development of the phases in the sinters was studied using X-ray diffraction (XRD), EDS and EPMA. Tumbler index (TI) decreased with increase in ilmenite addition up to 20 wt%, which increases TiO2(s) and Fe3O4(s) content in the sinter blends. Addition of more than 2 wt% TiO2(s) to the sinter blends resulted in the formation of perovskite (CaO·TiO2), which affected the development of bonding phases. These changes deteriorated RDI. The estimated melt formation temperature of the sinter blends increased with ilmenite addition up to 15 wt%, and decreased thereafter. An attempt was made to predict the development of phases in the ternary phase diagram of CaO-Fe2O3-TiO2. The reduction behavior of the sinter blends was affected by the type of the bonding phase.