Progress on Phase Equilibrium of Binary and Ternary Salt-Water Systems Containing Lithium

Key Points

• To investigate the phase equilibrium of lithium-containing binary and ternary salt-water systems for efficient resource development.
• Reviewed studies on phase equilibrium at various temperatures.
• Analyzed the effect of different cations (Na⁺, K⁺, Mg²⁺, Ca²⁺) and anions (Cl^-, SO₄^2-, Br^-, CO₃^2-) on lithium salt solubility.
• Compared literature data to identify differences under the same temperature conditions.
• Documented significant variations in lithium salt solubility due to different ions at varying temperatures.
• Highlighted limitations in current phase equilibrium studies and data inconsistencies.
• Provided a strategic outlook for enhancing lithium extraction processes.