Simulación termodinámica de la calcinación de α-espodumena con Na2SO4
In this research work, the calcination reaction of a spodumene (LiAlSi2O6) with Na2SO4 through thermodynamic simulation using the Equilib module included in the Fact Sage 8.2 software was studied. The LiAlSi2O6:Na2SO4 molar ratios (RM) analyzed were: 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.85, 1:1, and 1:1....
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | México |
| Institución: | UNIVERSIDAD AUTÓNOMA DEL ESTADO DE HIDALGO |
| Repositorio: | PÄDI Boletín Científico de Ciencias Básicas e Ingeniería del ICBI |
| Idioma: | español |
| OAI Identifier: | oai:repository.uaeh.edu.mx:article/12726 |
| Acceso en línea: | https://repository.uaeh.edu.mx/revistas/index.php/icbi/article/view/12726 |
| Access Level: | acceso abierto |
| Palabra clave: | α-spodumene Calcinación Litio Simulación Termodinámica Calcination Lithium Simulation Thermodynamics |
| Sumario: | In this research work, the calcination reaction of a spodumene (LiAlSi2O6) with Na2SO4 through thermodynamic simulation using the Equilib module included in the Fact Sage 8.2 software was studied. The LiAlSi2O6:Na2SO4 molar ratios (RM) analyzed were: 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.85, 1:1, and 1:1.5 in the temperature range from 50°C to 1200°C and 1 atmosphere of pressure determining the chemical species in equilibrium every 50 °C through Gibbs energy minimization. The most stable chemical species formed in all RMs were: Li2SO4, NaAlSi3O8, NaAlSiO4 and LiNaSO4. The maximum % percentage yield (% PY) for the Li2SO4 specie was 50% in the solid state starting at 500°C and in the liquid state at temperature ≥ 900°C for the 1:1 RM with an excess of Na2SO4 of 15%. The results obtained from the present study allowed us to propose the reaction mechanism of the calcination process of a spodumene with Na2SO4. |
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