Ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate, an efficient solvent for extraction of acetone from aqueous solutions

Saien, Javad; Badieh, Marjan Mohammadi Sarab; Norouzi, Mahdi; Salehzadeh, Sadegh

doi:10.1016/j.jct.2015.08.027

Cited by 21 publications

(10 citation statements)

References 41 publications

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“…The experimental LLE data were determined using an equilibrium jacketed cell (about 5 cm 3 volume) equipped with a magnetic stirrer and based on the titration cloud point method as described in the previous works. , The temperature of the cell was controlled by the circulating water, conducted by the external stream of a thermostat (Julabo, Germany) controlled by a thermocouple with an uncertainty of 0.01 K, and its accuracy was examined by means of an accurate thermometer (Amadigit, ad 3000th, percica, Germany). An electronic Ohaus balance (Adventurer, Pro AV264, Switzerland, uncertainty 0.0001 g) was used to weigh all prepared samples to the desired values.…”

Section: Methodsmentioning

confidence: 99%

Liquid–Liquid Equilibrium of the Ternary System of Water + Phenol + (Propan-2-yl) Benzene at Several Temperatures

Saien

Asrami

2017

J. Chem. Eng. Data

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Liquid–liquid equilibrium (LLE) data for the ternary chemical system of {water + phenol + (propan-2-yl) benzene (cumene)} were presented at temperatures of 293.2, 298.2, and 308.2 K and under the ambient pressure of 81.5 kPa. Experiments were performed based on the cloud point titration method and refractive index measurements. Results show that the phenol solubility in cumene is significantly higher than in water especially at higher phenol concentrations. The phenol distribution coefficient and separation factor were obtained within 1.490–3.418 and 82.06–300.24, respectively. The capability of cumene, as a solvent to extract phenol from aqueous solutions, particularly for low level phenol concentrations, was revealed. The consistency of tie line data was sufficiently assessed by the Othmer–Tobias and Bachman equations. Meanwhile, the well-known NRTL and UNIQUAC thermodynamic models were employed to reproduce the experimental data and obtaining the binary interaction parameters. The appropriate low value root-mean-square deviations confirm the good agreement between experimental data and the model correlated values.

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Section: Methodsmentioning

confidence: 99%

Liquid–Liquid Equilibrium of the Ternary System of Water + Phenol + (Propan-2-yl) Benzene at Several Temperatures

Saien

Asrami

2017

J. Chem. Eng. Data

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“…The experimental LLE data for the ternary systems have been correlated by the NRTL and UNIQUAC models ( Table 2) which have provided adequate correlation for ternary systems containing ILs [34,49,51]. The molecular volume structure parameter r and the molecular surface area parameters q, q' of ILs in UNIQUAC model calculated are listed in Table 3.…”

Section: Thermodynamic Modelsmentioning

confidence: 99%

Liquid–liquid equilibria for ternary mixtures of water + 2-propanol + 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids at 298.15 K

Liu

Zhang

et al. 2016

Fluid Phase Equilibria

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“…Data for salt-free system show that for the most tie-lines, acetone is more soluble in the IL phase which can be due to hydrogen bonding between acetone and the IL [16]. Indeed, because of salting-out effect, the solubility of acetone in aqueous phase decreases in the presence of salts and therefore its extraction by the IL is significantly improved [10].…”

Section: Tie-line Datamentioning

confidence: 99%

“…The detailed description of the meaning and value of parameters have been represented in the literature [40] and our previous work [16]. UNIQUAC structural parameters r and q for the used ionic liquid, HMIMPF 6 , has already been determined by Santiago et al [41] as 9.681 and 7.845, respectively.…”

Section: Lle Correlationmentioning

confidence: 99%

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Experimental and theoretical assessing the salts effect on the equilibrium of water + acetone + HMIMPF6 ionic liquid system

Saien

Badieh

Norouzi

2016

Separation and Purification Technology

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a b s t r a c tThe influence of naturally occurring monovalent NaCl and divalent Na 2 SO 4 salts with anions at near extremes of Hafmester series on liquid-liquid equilibrium (LLE) of the chemical system of {water + acetone + 1-Hexyl-3-methylimidazolium hexafluorophosphate (HMIMPF 6 ) ionic liquid} was studied. The conditions were 298.2 K, atmospheric pressure of 81.5 kPa and salts mass fractions in initial aqueous solutions of 0.05 and 0.10. Results show that salting-out effect was significant, so that enhancements in the acetone distribution coefficient was achieved within (21.67-35.54)% for NaCl and (51.84-92.37)% for Na 2 SO 4 . The stronger anion activity and the lack of anion exchange with the used ionic liquid can be the reasons for the stronger effect of the latter salt. The consistency of the experimental data were examined with the improved Eisen-Joffe equation. For modeling purpose, the NRTL and UNIQUAC equations were satisfactorily applied to correlate the phase equilibria. In the presence of NaCl and Na 2 SO 4 salts, the root mean square deviations of compositions, for NRTL equation were 0.0346 and 0.0634 and for UNIQUAC equation 0.1093 and 0.0328, respectively.

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Ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate, an efficient solvent for extraction of acetone from aqueous solutions

Cited by 21 publications

References 41 publications

Liquid–Liquid Equilibrium of the Ternary System of Water + Phenol + (Propan-2-yl) Benzene at Several Temperatures

Liquid–Liquid Equilibrium of the Ternary System of Water + Phenol + (Propan-2-yl) Benzene at Several Temperatures

Liquid–liquid equilibria for ternary mixtures of water + 2-propanol + 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids at 298.15 K

Experimental and theoretical assessing the salts effect on the equilibrium of water + acetone + HMIMPF6 ionic liquid system

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