Solubility of CO2 in molten Li2Co3-LiCl

Solubility of CO2 in molten Li2Co3-LiCl

Solubility of CO2 in molten Li2CO3-LiCl was measured by a pressure differential method, and the enthalpy change of the solution was calculated on that basis. The relationships between the solubility and the enthalpy change, and the temperature and the composition of the melts were discussed. The res...

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Veröffentlicht in:Journal of mining and metallurgy. Section B, Metallurgy Metallurgy, 2021, Vol.57 (2), p.279-284
Hauptverfasser: Hu, X.-W., Deng, W.-T., Shi, Z.-N., Liu, A.-M., Yu, J.-Y., Wang, Z.-W.
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Carbon dioxide
Chloride
co2 solubility
Efficiency
Electrolytes
Enthalpy
Equilibrium
li2co3-licl melts
Lithium carbonate
Lithium chloride
Measurement techniques
mscc-et
pressure differential method
Solubility
solution enthalpy change
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Zusammenfassung:Solubility of CO2 in molten Li2CO3-LiCl was measured by a pressure differential method, and the enthalpy change of the solution was calculated on that basis. The relationships between the solubility and the enthalpy change, and the temperature and the composition of the melts were discussed. The results showed that when the temperature was 873?923 K and the Li2CO3 content was 10?50 mol%, the solubility of CO2 increased with decreasing temperature and/or increasing Li2CO3 content. The maximum solubility was 3.965 ? 10?7gCO2/gmelt at 873 K when the content of Li2CO3 was 50 mol%. The solution of CO2 was exothermic. With increasing temperature and Li2CO3 content, more enthalpy was needed for CO2 solution.
ISSN:1450-5339
2217-7175
DOI:10.2298/JMMB200426024H