Mineral solubilities of salts in the three quaternary systems: LiCl–NaCl–MgCl2–H2O, LiCl–KCl–MgCl2–H2O and Li2SO4–K2SO4–MgSO4–H2O at 288.15 K

Phase Equilibria in the Quaternary Systems (KCl + CaCl2 + SrCl2 + H2O) and (LiCl + NaCl + SrCl2 + H2O) at 288.15 K and 0.1 MPa

“…The quaternary system (LiCl + NaCl + SrCl 2 + H 2 O) includes three ternary subsystems corresponding to (LiCl + NaCl + H 2 O), (NaCl + SrCl 2 + H 2 O), and (LiCl + SrCl 2 + H 2 O). Table shows the comparisons of the liquid-phase composition and the corresponding solid phase on the invariant points of the three ternary subsystems in this work and in the literature. ,,,− It is found that the solubility on the invariant point of the ternary system (LiCl + NaCl + H 2 O) at 288.15 K in this work is consistent with the literature data. , Additionally, the equilibrated solid phases are both LiCl·2H 2 O + NaCl. It is observed that the experimental data at the invariant point of the ternary system (NaCl + SrCl 2 + H 2 O) at 288.15 K show good agreement with the literature, and the equilibrated solid phases are both SrCl 2 ·6H 2 O + NaCl.…”

“…Dry salt phase diagram of the quaternary system (KCl + CaCl 2 + SrCl 2 + H 2 O) at 288.15 K. ●, liquid phase; , isothermal curve; △, ref ; □, ref ; and ○, ref .…”

Solid–Liquid Phase Equilibria of the Reciprocal Quaternary System (Li + Na + Cl + BO2 + H2O) at 288.15 K and 0.1 MPa

“…There are four boundary ternary subsystems in this quaternary system (Li + Na + Cl + BO 2 + H 2 O), which are (LiCl + LiBO 2 + H 2 O), (NaBO 2 + LiBO 2 + H 2 O), (NaCl + NaBO 2 + H 2 O), and (NaCl + LiCl + H 2 O). ,− The measured solubility data of three ternary systems are shown in Table , and the ternary system (NaBO 2 + LiBO 2 + H 2 O) was determined in this work. The deviation of measured solubility data obtained with previous reports is less than 0.05%, suggesting that our experimental procedure and results are rational and reliable.…”

Experimental and Thermodynamic Modeling Study of the Quaternary System Containing Lithium, Potassium, Magnesium, and Sulfate at 288.15 K

“…There are three boundary subternary systems in this quaternary system, which are Li 2 SO 4 + K 2 SO 4 + H 2 O, Li 2 SO 4 + MgSO 4 + H 2 O, and K 2 SO 4 + MgSO 4 + H 2 O. − Solubilities and densities of the invariant points for the three subternary systems are shown in Table . The deviation of densities between the experimental value in this work and those previous reported is within 0.05%, and the compositions for the subternary systems in the literature agree well with our experimental results, indicating the experimental procedure and analysis are rational and reliable.…”

“…Although this quaternary system (Li + K + Mg + SO 4 + H 2 O) was previously studied by Zhou and Fang at T = 273.15, 288.15, and 298.15 K, ,, the thermodynamic data and modeling are still not sufficient. The average temperature is approximately 288.15 K during the summer in the Qaidam Basin region, these low temperature environments have mineral coexistances that are quite different from those that are found at 298.15 K. For example, mirabilite was observed to precipitate by lowering the brine temperature, so the phase equilibrium and modeling study of this quaternary system at 288.15 K has a significant value for separating and purifying lithium salts from the brines.…”