Liquid-liquid extraction equilibrium for pyruvic acid recovery: experimental data and modeling

Abstract Ternary liquid-liquid equilibria for four systems containing ionic liquids {1-ethyl-3-methylimidazolium ethylsulphate ([EMIM][EtSO4]) and 1-ethyl-3-methylpyridinium ethylsulphate ([EMPY][EtSO4])}(1)+pyrrole/pyridine(2)+isododecane (3) have been determined at 298.15 K. The solute distribution coefficient and selectivity were calculated from experimental LLE data. All systems showed high distribution coefficient and selectivity values at the entire range of pyrrole or pyridine in feed. The consistency of experimental data was ascertained by applying the Othmer-Tobias and hand equations. Furthermore, the experimental LLE data have been compared and correlated using COSMO-RS, NRTL and UNIQUAC models. The influence of aromatic structure without inside ring of cation has a significant role on denitrification process at 298.15 K.

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Green liquor extraction of hemicellulosic fractions and subsequent organic acid recovery from the extracts using liquid–liquid extraction

Industrial Crops and Products ◽

10.1016/j.indcrop.2015.01.040 ◽

2015 ◽

Vol 67 ◽

pp. 395-402 ◽

Cited By ~ 10

Author(s):

Seong Ju Kim ◽

Hee Sun Kwon ◽

Ga Hee Kim ◽

Byung Hwan Um

Keyword(s):

Organic Acid ◽

Liquid Extraction ◽

Green Liquor ◽

Liquid Liquid Extraction ◽

Acid Recovery

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Liquid–liquid extraction by mixed micellar systems: A new approach for clavulanic acid recovery from fermented broth

Biochemical Engineering Journal ◽

10.1016/j.bej.2011.05.011 ◽

2011 ◽

Vol 56 (1-2) ◽

pp. 75-83 ◽

Cited By ~ 34

Author(s):

Valéria Carvalho Santos ◽

Francislene Andréia Hasmann ◽

Attilio Converti ◽

Adalberto Pessoa

Keyword(s):

Clavulanic Acid ◽

Liquid Extraction ◽

New Approach ◽

Micellar Systems ◽

Liquid Liquid Extraction ◽

Acid Recovery ◽

Fermented Broth

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Use of Liquid–Liquid Extraction with Neutral Organophosphorous Derivatives in the Estimation of (AuCl4-,H+) Interaction Coefficients

Journal of Chemical Research ◽

10.3184/030823403103172913 ◽

2003 ◽

Vol 2003 (1) ◽

pp. 48-50

Author(s):

Francisco José Alguacil ◽

Ana María Sastre

Keyword(s):

Experimental Data ◽

Specific Interaction ◽

Numerical Data ◽

Interaction Coefficient ◽

Liquid Extraction ◽

Phosphine Oxides ◽

Interaction Theory ◽

Interaction Coefficients ◽

Liquid Liquid Extraction ◽

Cyanex 923

The liquid–liquid extraction of Au(III) from HCl solutions by a series of solvation extractants had been studied. The reagents are neutral organophosphorous derivatives such as phosphine oxides (Cyanex 921 and Cyanex 923) and phospholene derivatives (DMPL, EHMPL and NMPL). The distribution of gold between the aqueous and organic phases has been investigated under different variables. Experimental data were treated numerically in order to define the corresponding extracted species. Both experimental and numerical data were used to estimate the interaction coefficient between AuCl4- and H+ by using the specific interaction theory (SIT). Moreover, experimental data on the liquid–liquid extraction of HCl by these phosphorous derivatives were given.

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