Thermodynamic Refractory Corrosion Model for Ferronickel Manufacturing

Abstract A thermodynamic model, based on SimuSage, was developed to simulate refractory corrosion between a magnesia-based material and ferronickel (FeNi) slags. The model considers theoretical cross-section of smelter application. current is structured into 10 zones, which characterize different sectors in the brick (hot cold side) perpendicular surface with an underlying temperature gradient. In each zone, calculates equilibrium slag specified amount material. emerging liquid phases are transferred subsequent zones. Meanwhile, all solids remain calculated zone. This computational process repeats until steady state reached simulation results show that when FeNi infiltrates material, melt dissolves forms silicates (Mg,Fe,Ca) 2 SiO 4 Al spinel ((Mg,Fe)Al O ). Furthermore, it observed iron oxide from reacts generates magnesiowustite (Mg,Fe)O. Practical lab-scale tests scanning electron microscopy (SEM)/Energy Dispersive X-ray Spectroscopy (EDS) characterization confirmed formation these minerals. Finally, (RCM) ultimately provides pathway for improving lifetimes performance.