Liquid-liquid-solid equilibria for the ternary systems water-lithium chloride-1-propanol or 2-propanol at 25 °C

Gomis, Vicente; Ruíz, Francisco; Asensi, Juan Carlos; Cayuela, Pilar

doi:10.1016/0378-3812(95)02859-5

Cited by 22 publications

(18 citation statements)

References 3 publications

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“…This phenomenon can be explained if the salting-out effect of 1-propanol in the two-liquid region was greater than that for 2-propanol because of the different polarities of 1-propanol and 2-propanol. These trends are in agreement with the experimental results obtained by Gomis et al (1996) for the system water þ sodium chloride þ 1-propanol system. However, the effect of the temperature on the two-phase area was not significant (Figure 1).…”

Section: Apparatus and Proceduressupporting

confidence: 93%

“…Comparison of the liquid-liquid equilibrium data for the water þ MCl (where M ¼ Na, K, Rb, and Cs) þ 1-propanol systems: &, NaCl (Gomis et al, 1996); , KCl (Gomis et al, 1996);~, RbCl, present study; 4 ;, CsCl (Hu et al, 2005b). w 2 and w 3 represent the mass fraction of rubidium chloride and 1-propanol or 2-propanol, respectively; n D represents the index of refraction.…”

Section: Resultsmentioning

confidence: 99%

“…For example, data have been published for LiCl þ 1-propanol or 2-propanol þ water (Gomis et al, 1996), for NaCl þ 1-propanol or 2-propanol þ water, and for KCl þ 1-propanol or 2-propanol þ water (Gomis et al, 1994). Similarly, the equilibrium composition and physical properties of the Li 2 SO 4 þ 1-propanol þ water system were measured by Taboada (2003).…”

Section: Introductionmentioning

confidence: 99%

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Measurement and Correlation of Liquid-Liquid Equilibria for Ternary Systems of Water + rubidium Chloride + propanol

Tang

Cui

et al. 2008

Chemical Engineering Communications

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Liquid-liquid equilibria for ternary systems of water þ rubidium chloride þ 1-propanol and water þ rubidium chloride þ 2-propanol were measured at T ¼ 298.15, 308.15, and 318.15 K. The experimental data were correlated using Othmer-Tobias and Bancroft correlations. The salting-out effect of 1-propanol in the two-liquid region was greater than that for 2-propanol, but the effect of temperature on the equilibrium was not significant.

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Section: Apparatus and Proceduressupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Measurement and Correlation of Liquid-Liquid Equilibria for Ternary Systems of Water + rubidium Chloride + propanol

Tang

Cui

et al. 2008

Chemical Engineering Communications

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“…Up to now, various researchers were carrying out the study of ATPS by using a phase diagram in which they used some models and equations to correlate the binodal and tie line in liquid-liquid equilibria (LLE) [10][11][12][13][14][15][16]. In recent years, several researchers focused on the measurement and investigation of thermodynamics of ATPSs composed of an aqueous solution of a short chain aliphatic alcohol in the presence of an electrolyte [10,11,[17][18][19][20][21]. However, the detailed study of molecular interactions responsible for phase separation is not reported in detail.…”

Section: Introductionmentioning

confidence: 99%

Volumetric and compressibility studies and phase equilibria of aqueous biphasic systems of alcohols using phase diagram

et al. 2019

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The solubility data of Na 2 S 2 O 3 ·5H 2 O in various concentrations of water and ethanol/1-propanol/2-propanol/2-methyl-2-propanol have been obtained to plot triangular phase diagrams and to determine the liquid-liquid-solid equilibria at 298.15 K. The density and sound velocity measurements were carried out for binary systems (water-salt, water-ethanol/1propanol/2-propanol/2-methyl-2-propanol) and ternary systems (water-ethanol/1-propanol/2-propanol/2-methyl-2-propanol-Na 2 S 2 O 3 ) to investigate volumetric and compressibility properties. The obtained data was used to determine the acoustic parameters including adiabatic compressibility (β s ), excess molar volume (V E ), intermolecular free length (L f ), specific acoustic impedance (Z), relative association (R A ), solvation number (S n ) of water-alcohols, water-salt and water-alcohol-salt at 298.15 ± 0.05 K to evaluate equilibrium effects. Based on which, the salting-out of studied alcohols and phase forming ability of Na 2 S 2 O 3 through its bond making and breaking properties, intermolecular interactions were reported. The density, sound velocity and adiabatic compressibility of ternary system suggest phase separation phenomenon is bond breaking and bond making process with hydrogen bonding and hydrophobic interaction. The phase formation ability of systems composed of different alcohols is in order of 2-methyl-2-propanol > 1-propanol > 2-propanol > ethanol.

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“…The regions were of interest in design of recovering and purification methods for various salts. For example, the anhydrous cesium sulfate was purified in region Ⅲ, Ⅳ, and Ⅴ using ethanol , while monohydrate and anhydrate lithium chloride were obtained in liquid–liquid–solid region using 1‐propanol and 2‐propanol, respectively .…”

Section: Resultsmentioning

confidence: 99%

Partition behavior of hydrophilic diols in an ethanol/ammonium sulfate salting‐out extraction system

Dai

Sun

et al. 2015

Engineering in Life Sciences

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It is important to investigate the partition behavior of hydrophilic alcohols at different process parameters in order to have a deep understanding of the salting-out extraction technique and to design suitable downstream processes. First, phase diagram data of ethanol/ammonium sulfate at 293.15 K were obtained, and the reliability of binodal curve and tie line data were proved by Merchuk, Othmer-Tobias, and Bancroft equations, respectively. Then, the partition behavior of five short-chain diols was studied. For different tie lines, the partition coefficient changed linearly with an increase in tie line length. The concentration of diols also had a significant effect on the partition behavior due to the similarity between diols and ethanol. Further, the effect of temperature was increased as the hydrophobicity of the diols increased, and the partition behavior of diols was correlated with their hydrophobicity, implying that the solutes with higher hydrophobicity could be extracted more effectively. These findings are useful for designing an economic and efficient salting-out extraction process for diverse products.

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Liquid-liquid-solid equilibria for the ternary systems water-lithium chloride-1-propanol or 2-propanol at 25 °C

Cited by 22 publications

References 3 publications

Measurement and Correlation of Liquid-Liquid Equilibria for Ternary Systems of Water + rubidium Chloride + propanol

Measurement and Correlation of Liquid-Liquid Equilibria for Ternary Systems of Water + rubidium Chloride + propanol

Volumetric and compressibility studies and phase equilibria of aqueous biphasic systems of alcohols using phase diagram

Partition behavior of hydrophilic diols in an ethanol/ammonium sulfate salting‐out extraction system

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