Effect of TiO 2 on crystallisation of V concentrating phase in V bearing steelmaking slag

Abstract

Synthetic V bearing steelmaking slags with different contents of TiO₂ were solidified from melting temperature of 1530°C. The effect of TiO₂ on the crystallisation temperature and crystal growth of V concentrating phase is clarified by SEM and EDX and analysis of crystal size distribution. Results show that 2·2–4·2 wt-%TiO₂ can lower the crystallisation temperature from 1350 to 1275°C and crystal growth is enhanced but not linearly with the addition of TiO₂.