Open AccessSolubility of CO2 in molten Li2Co3-LiCl
Author(s) -
Xianwei Hu,
Wentao Deng,
Zhenxing Shi,
Aimin Liu,
Jin Yu,
Z.-W. Wang
Publication year - 2021
Publication title -
journal of mining and metallurgy. section b, metallurgy/journal of mining and metallurgy. section b, metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb200426024h
Subject(s) - solubility , enthalpy , enthalpy change of solution , exothermic reaction , thermodynamics , chemistry , co2 content , dissolution , materials science , carbon dioxide , organic chemistry , physics
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.