| Affiliation: | School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China;State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;Metallurgical Department, Central Iron and Steel Research Institute, Beijing 100081, China;State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China;Research Group of Metallurgical Thermodynamics and Modelling, School of Chemical Engineering, Department of Chemical and Metallurgical Engineering, Aalto University, Vuorimiehentie 2, 02150 Espoo, Finland;School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, 2052, Sydney, Australia |
| Abstract: | The effects of transformation of slag composition and additive agents on the morphology, the crystal in the Ti-bearing blast furnace slags were investigated. As the morphology of perovskite is dispersed in molten slags, the crystal growth mechanism of the melting of fine dendrites and the coarsening of large grains exist throughout the solidification of molten slags. With the increase of CaO and Fe2O3 content, VF of perovskite obviously increases. However, high basicity leads to the viscosity of slag, which results in the reduction of the average equivalent diameter (AED). The experimental results showed that the presence of the additives CaF2 and MnO efficiently decreased the viscosity of the slags, and obviously improved the morphology of perovskite and promoted its growth. |
