Phase Equilibria of the Ternary System Water + Acetic Acid + 1-Pentanol

Wood hydrolysates obtained in biotechnological processes are typically aqueous solutions that contain, among others, sugars, acetic acid, and furfural. Only little is known on the influence of the sugars on the phase equilibria in those mixtures. Therefore liquid-liquid equilibria (LLE), solid-liquid equilibria (SLE), and solid-liquid-liquid equilibria (SLLE) in the system (water(W) + xylose (X) + furfural (F)) were studied in the present work at 298.15 K and 333.15 K. Additionally, the LLE in the system (W + X + F + acetic acid (AA)) was studied at 298.15 K. The results show that, up to the solubility limit of xylose, adding xylose to mixtures of (W +F) hardly influences the width of the miscibility gap, and that there is practically no xylose in the furfural-rich phase. However, the miscibility gap in the ternary system (W + F + AA) is slightly widened by the addition of xylose. The experimental data on the phase equilibria from the present work were described using the NRTL model. The model describes the experimental data well.

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Liquid−Liquid Equilibria of the Ternary System Water + Acetic Acid + 1-Heptanol

Journal of Chemical & Engineering Data ◽

10.1021/je990170v ◽

2000 ◽

Vol 45 (2) ◽

pp. 301-303 ◽

Cited By ~ 47

Author(s):

Adel S. Aljimaz ◽

Mohamed S. H. Fandary ◽

Jasem A. Alkandary ◽

Mohamed A. Fahim

Keyword(s):

Acetic Acid ◽

Ternary System ◽

System Water

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Liquid–liquid equilibrium of the ternary system water+acetic acid+sec-butyl acetate

Fluid Phase Equilibria ◽

10.1016/j.fluid.2010.01.005 ◽

2010 ◽

Vol 293 (1) ◽

pp. 73-78 ◽

Cited By ~ 10

Author(s):

Song Hu ◽

Qing-lin Chen ◽

Bing-jian Zhang ◽

Yuan-lan Liang ◽

Xue-nong Gao

Keyword(s):

Acetic Acid ◽

Ternary System ◽

Butyl Acetate ◽

Liquid Equilibrium ◽

System Water

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Conductivity of the Liquid System Water + Acetic Acid + Silver Acetate

Zeitschrift für Naturforschung A ◽

10.1515/zna-1978-0923 ◽

1978 ◽

Vol 33 (9) ◽

pp. 1105-1106

Author(s):

R. Haase ◽

H. Ben Nasr ◽

K .-H . Dücker

Keyword(s):

Acetic Acid ◽

Ternary System ◽

Electric Conductivity ◽

Infinite Dilution ◽

Liquid System ◽

Silver Acetate ◽

Equivalent Conductivity ◽

Experimental Values ◽

Limiting Values ◽

System Water

We present and discuss experimental values of the electric conductivity (and of the density) for the liquid ternary system water + acetic acid + silver acetate at 25 °C. The results given here represent a selection from measurements on more than 200 compositions. The concepts of equivalent conductivity and of limiting values for infinite dilution in the ternary system are also dealt with briefly.

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