Investigation of fluoride evaporation from CaF-CaO-AlO-MgO-TiO-(LiO) slag for electroslag remelting.

The isothermal kinetics of fluoride evaporation from CaF-CaO-AlO-MgO-TiO-(LiO) slag with varying LiO content were investigated in the temperature range 1743-1803 K by thermogravimetric analysis. Thermodynamic calculations and viscosity measurements were applied for studying the evaporation mechanism of fluoride. The results showed that the evaporation ratio increases with increasing LiO content and temperature.