Thermodynamic simulation of α-spodumene calcination with Na2SO4
Resumen
En este trabajo de investigación la reacción de calcinación de a espodumena (LiAlSi2O6) con Na2SO4 mediante simulación termodinámica using the Equilib module included in the software Fact Sage 8.2 fue estudiada. Las relaciones molares (RMs) LiAlSi2O6:Na2SO4 analizadas fueron: 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.85, 1:1, y 1:1.5 en el rango de temperatura de 50°C a 1200°C y 1 atmosfera de presión determinando las especies químicas en equilibrio cada 50 °C a través de la minimización de energía de Gibbs. Las especies químicas más estables formadas en todas las RMs fueron: Li2SO4, NaAlSi3O8, NaAlSiO4 y LiNaSO4. El máximo % de rendimiento porcentual (% PY) para la especie Li2SO4 fue de 50% en estado sólido a partir de 500°C y en estado líquido a temperatura ≥ 900°C para la RM 1:1 con un exceso de Na2SO4 de 15%. Los resultados obtenidos del presente estudio permitieron proponer el mecanismo de reacción del proceso de calcinación de a espodumena con Na2SO4.
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Derechos de autor 2024 Miguel Pérez-Labra , Aurelio Hernández-Ramírez, José Antonio Romero-Serrano, Mizraim Uriel Flores-Guerrero, Francisco Patiño-Cardona, Irma Mendoza-Sánchez
Esta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial-SinObrasDerivadas 4.0.
