Thermodynamic Model and Database for Sulfides Dissolved in Molten Oxide Slags

摘要: A thermodynamic model has been developed in the framework of modified quasichemical quadruplet approximation to permit calculation solubilities various gaseous species (sulfide, sulfate, nitride, carbide, water, etc.) molten slags. The calculates solely from knowledge activities component oxides and Gibbs energies pure liquid components (oxides, sulfides, sulfates, etc.). In current article, it is shown that sulfur as sulfide Al2O3-CaO-FeO-Fe2O3-MgO-MnO-SiO2-TiO2-Ti2O3 multicomponent slags, which are predicted with no adjustable parameters, good agreement all available experimental data. article also provides a thorough review capacity data for this system. applies at compositions sulfides basic acidic By coupling database other evaluated databases, such those metal phases, general software energy minimization, practically important slag/metal/gas/solid equilibria can be computed S-distribution ratios.