Liquid+liquid equilibria of ternary water+carboxylic acid+solvent systems at 288.15 K

Arabi, Abbasali; Mahmoudi, Jafar; Saradar, Hamid; Jafarzade, Ahmad; Ghasemi, Mahdiyar

doi:10.1007/s11814-010-0425-y

Cited by 7 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to rationally design and carry out separation operations, such as biological separation and extraction, LLE data are required. Numerous researchers have studied a variety of multicomponent systems, including carboxylic acid–organic solvent–water. ,− Carboxylic acid separation from aqueous fermentation solutions may benefit from the use of an organic solvent because it is non-toxic to the biological product. In addition, values for the separation factor and distribution coefficient can be calculated from the liquid–liquid equilibrium (LLE) data, allowing for an assessment of the extraction performance.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibria of Butyric Acid, Water, and Methyl Isobutyl Ketone with the Aid of Biological Buffer as a Green Auxiliary Agent

et al. 2023

View full text Add to dashboard Cite

Biological buffer has a significant impact on aqueous organic phase equilibria in extraction processes. This study investigated the effect of biological buffer on the efficacy of butyric acid extraction from aqueous solution utilizing methyl isobutyl ketone (MIBK) as the extraction solvent. The liquid–liquid equilibria (LLE) of quaternary systems of methyl isobutyl ketone (MIBK) + butyric acid + water + biological buffer MOPS [3-(N)-morpholino propane sulfonic acid], HEPES (2-(4-(2-hydroxyethyl)-1-piperazinyl)ethanesulfonic acid), or EPPS (4-(2-hydroxyethyl)-1-piperazine propanesulfonic acid) were determined at temperature T = 303.15 K (30 °C) and P = 0.1 MPa (atmospheric pressure). The addition of EPPS to the butyric acid aqueous solution resulted in superior extraction efficacy compared to the other biological buffers, as determined by experimental data. Generally, the extraction performance was in the order EPPS > MOPS > HEPES, which represented the buffering-out strength as well. The non-random two-liquid (NRTL) and UNIversal QUAsi Chemical (UNIQUAC) models fit well with the actual LLE data of the quaternary systems. The σ-profile analysis was also evaluated in this study. Additionally, a potential process flow sheet using biological buffer and MIBK solvent was suggested for removing butyric acid from its aqueous solution.

show abstract

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibria of Butyric Acid, Water, and Methyl Isobutyl Ketone with the Aid of Biological Buffer as a Green Auxiliary Agent

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Recently, many studies have investigated liquid–liquid extraction for various kinds of multicomponent systems such as carboxylic acid–organic solvent–water. − Organic solvents are noxious for the biological product, and thus organic solvents may be used as a good extraction agent for carboxylic acid separation from aqueous fermentation solutions. In this study, methyl isobutyl ketone (MIBK) was used as a good extraction solvent, which has limited solubility in water and may interact well with carboxylic acid molecules.…”

Section: Introductionmentioning

confidence: 99%

Effect of EPPS Buffer on the Liquid–Liquid Equilibria of Carboxylic Acids (Acetic Acid or Propionic Acid)–Water–Methyl Isobutyl Ketone at Elevated Temperatures

Tiwikrama

Altway

2022

J. Chem. Eng. Data

View full text Add to dashboard Cite

The capacity of methyl isobutyl ketone (MIBK) containing 5 wt % 4-(2-hydroxyethyl)-1-piperazine propanesulfonic acid (EPPS) buffer has been demonstrated to boost the distribution coefficient and separation factor in the extraction process of carboxylic acids (acetic acid or propionic acid). Liquid–liquid extraction is a useful technique for recovering acetic acid and propionic acid from an aqueous fermentation broth. In this study, the effect of EPPS buffer on the liquid–liquid equilibria (LLE) of water–acetic acid–MIBK and water–propionic acid–MIBK systems were measured at a temperature range of 298.15–318.15 K and atmospheric pressure (P = 0.1 MPa). The distribution coefficient (D) and separation factor (S) were calculated at each tie-line, and the reliability of the tie-lines was evaluated using the Othmer–Tobias and Hand plot correlations. With the addition of 5 wt % EPPS in the water–carboxylic acids–MIBK system, the separation factor increased by 7.2 times of the EPPS-free system. The NRTL model predicts the new LLE tie-lines within reasonable accuracy for this quaternary system. By adjusting constituent binary parameters, the NRTL model satisfactorily correlated the liquid–liquid equilibria of the water + acetic acid + MIBK + EPPS and the water + propionic acid + MIBK + EPPS system.

show abstract

“…Some authors have already reported LLE data for the systems consisting of chloroform and carbon tetrachloride. 35−48 Acetone, 35 nicotine 36 acetic acid, 38,46 and tetrahydrofuran 39 were purified using carbon tetrachloride and acetic acid, 37,42,43 while tetrahydrofuran, 39 valeric acid, pyruvic acid, propionic acid, 43 acetyl acetone, 44 and 2-methylaziridine 47 were separated using chloroform. Mixtures of chloroform with other solvents (toluene or diethyl ether) were also used to separate ethanol from water.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, two chlorinated methanes (tri and tetra chloromethane) were chosen as solvents to investigate the liquid–liquid equilibria of ternary systems (water + OPA + chloroform) and (water + OPA + carbon tetrachloride). Some authors have already reported LLE data for the systems consisting of chloroform and carbon tetrachloride. − Acetone, nicotine acetic acid, , and tetrahydrofuran were purified using carbon tetrachloride and acetic acid, ,, while tetrahydrofuran, valeric acid, pyruvic acid, propionic acid, acetyl acetone, and 2-methylaziridine were separated using chloroform. Mixtures of chloroform with other solvents (toluene or diethyl ether) were also used to separate ethanol from water. , …”

Section: Introductionmentioning

confidence: 99%

Phase Equilibrium Data of Ternary Mixtures (Water + Orthophosphoric Acid + Chlorinated Methanes)

Shekarsaraee

Hadinejad

2021

J. Chem. Eng. Data

View full text Add to dashboard Cite

In the present study, phase equilibrium data of the systems (water + orthophosphoric acid + chlorinated methanes) were measured in the temperature range of 298.2−318.2 K under ambient conditions. Chloroform and carbon tetrachloride were chosen as chlorinated solvents. Both the systems exhibited a type II phase behavior. The presence of hydrogen atoms in chloroform caused differences in phase behavior, partition coefficients, and solubility of the acid in the studied chlorinated methanes. Solid orthophosphoric acid was dissolved six times more in chloroform than in carbon tetrachloride. The thermodynamic modeling was conducted using the NRTL and UNIQUAC equations. Root mean square deviations were calculated to assess the quality of correlations, and the values were lower than 1% for UNIQUAC and 2% for NRTL models. The binary interaction parameters were optimized, and the temperature dependency of the binary parameters was considered. The performance of the studied solvents was evaluated by calculating the distribution coefficients (0.007 to 0.032 for chloroform and 0.004 to 0.008 for tetrachloromethane as solvents) and separation factors (9.81 to 1.25 for CHCl 3 and 5.67 to 1.70 for CCl 4 solvent systems) over the immiscibility region. Temperature increment had obvious effects on the partition coefficients of chloroform ternary mixtures. The obtained partition coefficients at 298.2 K were eventually regressed using the Catalań linear solvation energy relationship (LSER) model. The LSER modeling proposed that polarizability and dipolarity have large negative and positive effects on the distribution coefficient, while acidity and basicity have small and very small positive effects, respectively. LSER modeling of separation factors suggested polarizability as the strongest positive function and basicity as a negative one.

show abstract

Liquid+liquid equilibria of ternary water+carboxylic acid+solvent systems at 288.15 K

Cited by 7 publications

References 16 publications

Liquid–Liquid Equilibria of Butyric Acid, Water, and Methyl Isobutyl Ketone with the Aid of Biological Buffer as a Green Auxiliary Agent

Liquid–Liquid Equilibria of Butyric Acid, Water, and Methyl Isobutyl Ketone with the Aid of Biological Buffer as a Green Auxiliary Agent

Effect of EPPS Buffer on the Liquid–Liquid Equilibria of Carboxylic Acids (Acetic Acid or Propionic Acid)–Water–Methyl Isobutyl Ketone at Elevated Temperatures

Phase Equilibrium Data of Ternary Mixtures (Water + Orthophosphoric Acid + Chlorinated Methanes)

Contact Info

Product

Resources

About