Abstract
Phase diagrams on the mole fraction scale are presented for decane- (R4N)2[Nd(NO3)5]-n-octanol(n-butanol, n-decanol) (1–2–3) ternary liquid systems, where R4N+ stands for trialkylbenzylammonium, at T = 298.15 K. The C10H22-(R4N)2[Nd(NO3)5] binary system is a two-phase liquid system. One phase (phase I) is the almost neat solvent; the other (phase II) is enriched in (R4N)2[Nd(NO3)5]. The liquid ternary systems are characterized by homogeneous and two-phase liquid solution fields. One phase is enriched in (R4N)2[Nd(NO3)5] and n-octanol (n-butanol, n-decanol) and the other in C10H22. The miscibilities in the C10H22-(R4N)2[Nd(NO3)5] binary system and in the ternary liquid systems were used to calculate, from the equations of the nonrandom two-liquid model (NTRL), intermolecular interaction parameters and excess Gibbs free energies g E for the binary and ternary liquid systems along the binodal curve. g E > 0 is characteristic of the systems under study, while g E decreases in the series of pairs of liquids (1, 2), (1, 3), and (2, 3)
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References
A. I. Mikhailichenko, E. B. Mikhlin, and Yu. B. Patrikeev, The Rare-Earth Metals (Metallurgiya, Moscow, 1987) [in Russian].
A. I. Khol’kin and V. I. Kuz’min, in Extraction Chemistry (Nauka, Novosibirsk, 1984), p. 53 [in Russian].
V. I. Kuz’min, G. L. Pashkov, S. N. Kalyakin, et al., Proceedings of the Conference “The Week of Chemical Technology in St.-Petersburg” (St. Petersburg, 2002), p. 24 [in Russian].
A. K. Pyartman, A. A. Kopyrin, D. A. Zhikharev, and V. A. Keskinov, Radiokhimiya 45(4), 358 (2003) [Radiochemistry 45 (4), 358 (2003)].
A. K. Pyartman, S. V. Kovalev, V. A. Keskinov, and N. V. Khokhlova, Radiokhimiya 39(6), 534 (1997) [Radiochemistry 39 (6), 538 (1997)].
H. Renon and J. M. Prausnitz, AlChE J. 14, 135 (1968).
S. M. Walas, Phase Equilibria in Chemical Engineering (Butterworth, Boston, 1985; Mir, Moscow, 1989).
R. Traybal, Liquid Extraction (McGraw-Hill, New York, 1963; Khimiya, Moscow, 1966).
A. V. Nikolaev and I. I. Yakovlev, Clathrate Formation and Physicochemical Analaysis of Extraction Systems (Nauka, Novosibirsk, 1975) [in Russian].
A. I. Zhurkina and M. Kh. Karapet’yants, in Physical Chemistry of Solutions (Nauka, Moscow, 1972), p. 211 [in Russian].
N. S. Poluektov and L. I. Kononenko, Spectrophotometric Determination of Inidividual Rare-Earth Elements (Naukova Dumka, Kiev, 1968) [in Russian].
I. M. Ivanov and V. P. Zaitsev, Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. no. 2 (1), 16 (1986).
J. M. Marina and D. P. Tassias, Ind. Eng. Chem. Process Des. Dev. 12, 67 (1973).
J. E. Dennis and R. Schnabel, Numerical Methods for Unconstrained Optimization and Nonlinear Equations (Prentice-Hall, Englewood Cliffs, New York, 1983; Mir, Moscow, 1988).
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Original Russian Text © A.K. Pyartman, V.A. Keskinov, P.V. Zaitsev, N.A. Charykov, 2009, published in Zhurnal Neorganicheskoi Khimii, 2009, Vol. 54, No. 8, pp. 1392–1397.
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Pyartman, A.K., Keskinov, V.A., Zaitsev, P.V. et al. Phase diagrams of (R4N)2[Nd(NO3)5]-decane-n-octanol (n-butanol, n-decanol) liquid ternary systems. Russ. J. Inorg. Chem. 54, 1323–1328 (2009). https://doi.org/10.1134/S0036023609080233
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DOI: https://doi.org/10.1134/S0036023609080233