Measurements and theoretical simulations of phase equilibria in the quaternary systems NaBr + KBr + SrBr2 + H2O, NaBr + MgBr2 + SrBr2 + H2O and their subsystems at 273.15 K

Gao, Yun‐Yun; Qi, Xiao-Yun; Sang, Shi‐Hua; Ye, Chao; Zhao, Lan-Rong

doi:10.1016/j.fluid.2020.112763

Cited by 9 publications

(9 citation statements)

References 23 publications

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“…The phase equilibria of the ternary system MgBr 2 + SrBr 2 + H 2 O at 273, 298, and 323 K have also been reported by our group; 12,13 the experimental results of the invariant point at each temperature are listed in Table 5, and the comparison phase diagram is constructed in Figure 5. As shown in Table 5 and Figure 5, we can see that with the increase of the temperature, the isothermal solubility curves move up, the solubility of MgBr 2 at the invariant point decreases and that of SrBr 2 increases, and the experimental data of 308 K do not change much combined with that of 298 K. The equilibrium solid phases are all MgBr 2 •6H 2 O + SrBr 2 •6H 2 O.…”

Section: Comparisons Of Binary and Ternarysupporting

confidence: 54%

“…Comparison phase diagram of the ternary system MgBr 2 + SrBr 2 + H 2 O at different temperatures. 273; 288 and 308 K, this work; and 298 and 323 K …”

Section: Resultsmentioning

confidence: 77%

“…Deng et al , researched the solubility relationships of the ternary systems NaBr + SrBr 2 + H 2 O, KBr + SrBr 2 + H 2 O, and LiBr + SrBr 2 + H 2 O at 288.15 K; at the same time, they used Pitzer and HW model to simulate the thermodynamic properties and predict the solubility data, and the predicted data agreed well with the measured solubilities. Our group has also studied a lot about phase equilibria of the systems containing magnesium bromide and strontium bromide, such as the ternary system CaBr 2 + MgBr 2 + H 2 O (348 K), the quinary system NaBr + KBr + MgBr 2 + SrBr 2 + H 2 O (323 K), and some of its subsystems (273, 298, 323, and 348 K); − the results show that MgBr 2 can form double salts with KBr and CaBr 2 .…”

Section: Introductionmentioning

confidence: 99%

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Measurements and Predictions of the Solubilities in the Ternary System MgBr₂ + SrBr₂ + H₂O at 288 and 308 K

et al. 2021

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The stable phase equilibria of the ternary system MgBr2 + SrBr2 + H2O at 288 and 308 K were studied with the isothermal dissolution equilibrium method. The compositions of solutions and solid phases have been determined and the equilibrium solid phases at the invariant points were identified with the aid of the X-ray diffraction method. The phase diagrams of this system at 288 and 308 K were both constructed in terms of experimental results. Two stable phase diagrams show that this system is hydrate type I at two temperatures without formation of a solid solution or complex salt. Both the phase diagrams are composed of one invariant point, two univariate curves, and two crystallization regions (SrBr2·6H2O and MgBr2·6H2O). The equilibrium solid phases of the invariant point at 288 and 308 K are both SrBr2·6H2O and MgBr2·6H2O, respectively. Combining the Pitzer single-salt parameters of MgBr2 and SrBr2 reported in the literatures, the unreported mixing ion-interaction parameters θMg,Sr and ΨMg,Sr,Br at 288 and 308 K were fitted with the measured values in this study using the Pitzer equations. The agreement between the experimental values and calculated results in the ternary system MgBr2 + SrBr2 + H2O at 288 and 308 K shows that the parameters fitted with solubilities are reliable.

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Section: Comparisons Of Binary and Ternarysupporting

confidence: 54%

“…Comparison phase diagram of the ternary system MgBr 2 + SrBr 2 + H 2 O at different temperatures. 273; 288 and 308 K, this work; and 298 and 323 K …”

Section: Resultsmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

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Measurements and Predictions of the Solubilities in the Ternary System MgBr₂ + SrBr₂ + H₂O at 288 and 308 K

et al. 2021

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“…Among the minerals, bromine is called a marine element, 99% of which around the world stems from seawater . As a significant basic chemical raw material, bromine is widely used in various fields and plays a vital role in national technological and economic development . Therefore, it is necessary to exploit bromine resources rationally from bittern.…”

Section: Introductionmentioning

confidence: 99%

Study on the Phase Equilibria of the Ternary Mixed Solvent System NaCl–NaBr–CH₃OH–H₂O at 298 and 323 K

Hou

Guo

et al. 2022

J. Chem. Eng. Data

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Aiming to improve the utilization of bromine resources in bittern, the solubilities of the ternary NaCl−NaBr−CH 3 OH−H 2 O mixed solvent system at 298 and 323 K were measured by the method of isothermal dissolution equilibrium, and the corresponding phase diagrams were constructed. The results show that the phase diagrams at the two temperatures are similar, and both have only one univariant curve and one crystallization region corresponding to a solid solution Na(Cl, Br) without invariant points. Based on the extended Pitzer model, Pitzer parameters were calculated, and the activity product of the solid solution was regressed into a polynomial of Br − mole fraction in the solid solution. The solubilities of the ternary NaCl−NaBr− CH 3 OH−H 2 O mixed solvent system at 298 K were calculated. The computed results are in accordance with the experimental values.

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“…Some of the ternary, quaternary, and quinary subsystems of the water–salt system Li + , Na + , K + //CO 3 2– , SO 4 2– , B 4 O 7 2– –H 2 O at 273, 288, 298, 323, and 373 K − are reported. In addition, we also added calculations to verify the experimental data, such as the calculation of some ternary and quaternary subsystems of the quinary systems LiCl–NaCl–KCl–SrCl 2 –H 2 O and NaBr–KCl–MgBr 2 –SrBr 2 –H 2 O. ,, …”

Section: Introductionmentioning

confidence: 99%

Phase Equilibria in the Quaternary System LiCl–NaCl–SrCl₂–H₂O at 273 and 323 K

et al. 2021

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Phase equilibria in the quaternary system LiCl− NaCl−SrCl 2 −H 2 O were measured by the isothermal dissolution equilibrium method at 273 and 323 K. The solubility diagrams and water content diagrams of the quaternary system were constructed. The phase diagrams of the quaternary systems LiCl−NaCl−SrCl 2 − H 2 O at 273 and 323 K are of the hydrate type and neither double salts nor solid solutions are found. The phase diagram of the quaternary system LiCl−NaCl−SrCl 2 −H 2 O at 273 K contains two invariant points, five univariate curves, and four crystallization fields, which correspond to SrCl 2 •6H 2 O, SrCl 2 •2H 2 O, LiCl•2H 2 O, and NaCl. The quaternary system LiCl−NaCl−SrCl 2 −H 2 O at 323 K has three invariant points, seven univariate curves, and five crystallization fields corresponding to SrCl

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Measurements and theoretical simulations of phase equilibria in the quaternary systems NaBr + KBr + SrBr2 + H2O, NaBr + MgBr2 + SrBr2 + H2O and their subsystems at 273.15 K

Cited by 9 publications

References 23 publications

Measurements and Predictions of the Solubilities in the Ternary System MgBr₂ + SrBr₂ + H₂O at 288 and 308 K

Measurements and Predictions of the Solubilities in the Ternary System MgBr₂ + SrBr₂ + H₂O at 288 and 308 K

Study on the Phase Equilibria of the Ternary Mixed Solvent System NaCl–NaBr–CH₃OH–H₂O at 298 and 323 K

Phase Equilibria in the Quaternary System LiCl–NaCl–SrCl₂–H₂O at 273 and 323 K

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Measurements and theoretical simulations of phase equilibria in the quaternary systems NaBr + KBr + SrBr2 + H2O, NaBr + MgBr2 + SrBr2 + H2O and their subsystems at 273.15 K

Cited by 9 publications

References 23 publications

Measurements and Predictions of the Solubilities in the Ternary System MgBr2 + SrBr2 + H2O at 288 and 308 K

Measurements and Predictions of the Solubilities in the Ternary System MgBr2 + SrBr2 + H2O at 288 and 308 K

Study on the Phase Equilibria of the Ternary Mixed Solvent System NaCl–NaBr–CH3OH–H2O at 298 and 323 K

Phase Equilibria in the Quaternary System LiCl–NaCl–SrCl2–H2O at 273 and 323 K

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Measurements and Predictions of the Solubilities in the Ternary System MgBr₂ + SrBr₂ + H₂O at 288 and 308 K

Measurements and Predictions of the Solubilities in the Ternary System MgBr₂ + SrBr₂ + H₂O at 288 and 308 K

Study on the Phase Equilibria of the Ternary Mixed Solvent System NaCl–NaBr–CH₃OH–H₂O at 298 and 323 K

Phase Equilibria in the Quaternary System LiCl–NaCl–SrCl₂–H₂O at 273 and 323 K