Phase diagram study for the CaO-SiO2-Cr2O3-5 mass.%MgO-10 mass.%MnO system

Abstract

The phase diagram of the CaO-SiO2-CrOx-MgO-MnO system at moderately reducing oxygen partial pressure was calculated using a commercial thermochemical program and compared with the phase analysis for converter slags taken from the stainless steelmaking process. It was found that a (Mn,Mg)Cr2O4 solid solution and Ca2SiO4 phase are in equilibrium with the oxidation slags after the oxygen blowing period, which is consistent with thermodynamic calculations. Furthermore, it could be proposed that the thermodynamic properties of a MgCr2O4-MnCr2O4 binary spinel make it close to an ideal solution.

Dissolution Behavior of Indium in CaO-SiO2-Al2O3 Slag

“…[17,18] This software has been successfully applied in metallurgical slag systems. [19][20][21][22][23] Consequently, Eq.…”

Sulfide Capacity of CaO–SiO₂–MnO–Al₂O₃–MgO Slags at 1873 K

“…16,17) This database has been successfully used for the estimation of the thermodynamic properties of multicomponent oxide systems over wide temperature and composition ranges. 1,6,7,[18][19][20][21][22][23][24][25][26][27][28][29][30][31] …”

Sulfide Capacity of the CaO–SiO2–MnO Slag at 1873 K

“…16,17) This database was successfully used for the estimation of the thermodynamic properties of oxide systems through a wide temperature and composition range. [18][19][20][21][22][23][24] …”