Ternary liquid-liquid equilibria of acetonitrile and water with heptanoic acid and nonanol at 323.15 K and 1 atm

C. Narasigadu; J. D. Raal; P. Naidoo; D. Ramjugernath

doi:10.1021/je800404f

Ternary liquid-liquid equilibria of acetonitrile and water with heptanoic acid and nonanol at 323.15 K and 1 atm

C. Narasigadu, J. D. Raal, P. Naidoo, D. Ramjugernath

University of KwaZulu-Natal

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Liquid - liquid equilibrium data were measured and correlated for the ternary systems acetonitrile + water + heptanoic acid and acetonitrile + water + nonanol at 323.15 K and 1 atm. The liquid - liquid equilibrium data were measured using the direct analytical method in a double-walled glass cell. The binodal curve was correlated using a modified Hlavatý equation, a β function, and a log γ equation. The experimental tie lines were correlated using the NRTL and UNIQUAC activity coefficient models. Fitting of both activity coefficient models was undertaken by nonlinear least-squares regression of the data. The tie-line data were used to derive the selectivity values for solvent separation efficiency.

Original language	English
Pages (from-to)	735-738
Number of pages	4
Journal	Journal of Chemical & Engineering Data
Volume	54
Issue number	3
DOIs	https://doi.org/10.1021/je800404f
Publication status	Published - 12 Mar 2009
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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abstract = "Liquid - liquid equilibrium data were measured and correlated for the ternary systems acetonitrile + water + heptanoic acid and acetonitrile + water + nonanol at 323.15 K and 1 atm. The liquid - liquid equilibrium data were measured using the direct analytical method in a double-walled glass cell. The binodal curve was correlated using a modified Hlavat{\'y} equation, a β function, and a log γ equation. The experimental tie lines were correlated using the NRTL and UNIQUAC activity coefficient models. Fitting of both activity coefficient models was undertaken by nonlinear least-squares regression of the data. The tie-line data were used to derive the selectivity values for solvent separation efficiency.",

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AU - Narasigadu, C.

AU - Raal, J. D.

AU - Naidoo, P.

AU - Ramjugernath, D.

PY - 2009/3/12

Y1 - 2009/3/12

N2 - Liquid - liquid equilibrium data were measured and correlated for the ternary systems acetonitrile + water + heptanoic acid and acetonitrile + water + nonanol at 323.15 K and 1 atm. The liquid - liquid equilibrium data were measured using the direct analytical method in a double-walled glass cell. The binodal curve was correlated using a modified Hlavatý equation, a β function, and a log γ equation. The experimental tie lines were correlated using the NRTL and UNIQUAC activity coefficient models. Fitting of both activity coefficient models was undertaken by nonlinear least-squares regression of the data. The tie-line data were used to derive the selectivity values for solvent separation efficiency.

AB - Liquid - liquid equilibrium data were measured and correlated for the ternary systems acetonitrile + water + heptanoic acid and acetonitrile + water + nonanol at 323.15 K and 1 atm. The liquid - liquid equilibrium data were measured using the direct analytical method in a double-walled glass cell. The binodal curve was correlated using a modified Hlavatý equation, a β function, and a log γ equation. The experimental tie lines were correlated using the NRTL and UNIQUAC activity coefficient models. Fitting of both activity coefficient models was undertaken by nonlinear least-squares regression of the data. The tie-line data were used to derive the selectivity values for solvent separation efficiency.

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ER -

Ternary liquid-liquid equilibria of acetonitrile and water with heptanoic acid and nonanol at 323.15 K and 1 atm

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