Phase Diagram Study and Thermodynamic Modeling of the SnO2–Al2O3 and SnO2–SiO2–Al2O3 System

This study delves into the phase equilibria and thermodynamic properties of the SnO2-Al2O3 and SnO2-SiO2-Al2O3 systems, crucial for optimizing glass refining processes and primary tin production. Through experimental investigations and thermodynamic modeling, the research identifies key phase transitions and interactions within these systems. The study employs advanced techniques such as differential thermal analysis (DTA), quenching experiments, and electron probe microanalysis (EPMA) to determine phase diagrams and thermodynamic properties. Notably, the research reveals the eutectic reactions and phase assemblages in the SnO2-Al2O3 system, as well as the complex phase relationships in the ternary SnO2-SiO2-Al2O3 system. The findings provide valuable insights into the high-temperature behavior of these oxide systems, contributing to the development of more efficient and sustainable manufacturing processes. The study concludes with a comprehensive thermodynamic database, enabling accurate predictions of phase equilibria and thermodynamic properties for industrial applications.