Zhou Wenbo, Li Tingle, Lan Dong, Sun Changyu, Yang Songtao
School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China.
Fujian Sansteel (Group) Co., Ltd., Sanming 365000, China.
Materials (Basel). 2023 Mar 24;16(7):2575. doi: 10.3390/ma16072575.
The viscosity of high-titanium blast furnace slag with different TiO content, AlO content, and basicity was measured at 1653-1773 K using the rotational cylinder method. The phase composition of the slag is measured by XRD. Phase diagram of the slags is calculated by FactSage software. Ionic network structure of the slags is analyzed by FT-IR. Results show that TiO depolymerizes the silicate network structure, reducing viscosity at high temperature, while increasing AlO content generates a more complicated silicate, increasing viscosity. Basicity affects viscosity, with higher basicity resulting in lower viscosity above 1733 K. Perovskite significantly affects the viscosity of slag. This study provides an in-depth understanding of the relationship between the composition and viscosity of high-titanium blast furnace slag, which is very important for improving production efficiency.
采用旋转圆柱法在1653 - 1773 K温度下测量了不同TiO含量、Al₂O₃含量和碱度的高钛高炉矿渣的粘度。通过XRD测量矿渣的相组成。利用FactSage软件计算矿渣的相图。通过FT - IR分析矿渣的离子网络结构。结果表明，TiO使硅酸盐网络结构解聚，降低高温下的粘度，而增加Al₂O₃含量会生成更复杂的硅酸盐，增加粘度。碱度影响粘度，在1733 K以上，碱度越高粘度越低。钙钛矿对矿渣粘度有显著影响。本研究深入了解了高钛高炉矿渣成分与粘度之间的关系，这对提高生产效率非常重要。
