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Vol. 27 No. 3 (2015): Vol 27 Issue 3

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Study on Phase Equilibrium of Ternary System Na+, NH4+ //Cl– -H2O at 0, 10 and 60 °C

https://doi.org/10.14233/ajchem.2015.17598
M.M. Qi
Institute of Environment & Analytical Sciences, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
H.X. Cao
College of Chemistry and Chemical Engineering, Kaifeng University, Kaifeng 475004, P.R. China
M. Su
Institute of Environment & Analytical Sciences, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
X.X. Cheng
Institute of Environment & Analytical Sciences, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
Y.Y. Cao
Institute of Environment & Analytical Sciences, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China
L. Zhang
Institute of Environment & Analytical Sciences, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P.R. China

Corresponding Author(s) : L. Zhang

henuzhangling@163.com

Asian Journal of Chemistry, Vol. 27 No. 3 (2015): Vol 27 Issue 3

Abstract

By means of laser monitoring technology, the solubility data of NaCl and NH4Cl in water at different temperatures were obtained accurately. Solid-liquid phase equal relationship of ternary water-salt system of Na+, NH4+//Cl–-H2O was studied at 0, 10 and 60 °C using moist solid method and phase diagram was drawn. It can provide a theoretical basis for predicting dissolution, evaporation, crystallization, cooling and separation process of water-salt ternary system. The recovery of sodium chloride and ammonium chloride by thermal method were analyzed to provide reference for selecting industrial production conditions.

Keywords

Ternary water-salt system Na NH4 //Cl–-H2O Phase equilibrium Phase diagram Salt separation
Qi, M., Cao, H., Su, M., Cheng, X., Cao, Y., & Zhang, L. (2015). Study on Phase Equilibrium of Ternary System Na+, NH4+ //Cl– -H2O at 0, 10 and 60 °C. Asian Journal of Chemistry, 27(3), 929–931. https://doi.org/10.14233/ajchem.2015.17598
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