AISTech 2022

Study of the Temperature and of the Slag Properties Effects on Hot Metal Dephosphorization Efficiency

16 May 22
3:00 PM - 3:30 PM

Tracks: Virtual Program

Speaker(s): Elton Volkers do Espírito Santo, Bachelor, Instituto Federal do Espírito Santo; Inamara Amanda Souza Santos, MSc, Instituto Federal do Espírito Santo; Késsia Gomes Paradela, MSc, Instituto Federal do Espírito Santo; José Roberto de Oliveira, PhD, Instituto Federal do Espírito Santo; Caio Vaccari Silva, Instituto Federal do Espirito Santo

In the present work, an analysis of the dephosphorizing efficiency of a standard mixture M1 and other five mixtures is proposed. In those mixtures, temperature and slag properties (mixing mass and CaO granulometry) were varied. Experiments were carried at a temperature of 1,400°C and simulations were performed in FactSage 7.2 and surface images of the crucible were analyzed through Quantikov 15.86. The standard mixture M1 yields better efficiency than the other variations proposed. The results corroborate the equation used to calculate the dephosphorizing factor (FDeP), calculated to correlate slags thermodynamical properties and dephosphorization efficiency.