Equilibrium diagram of the water + K2SO4 or Na2SO4 + 1-propanol or 2-propanol systems at boiling conditions and 101.3 kPa
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Title: | Equilibrium diagram of the water + K2SO4 or Na2SO4 + 1-propanol or 2-propanol systems at boiling conditions and 101.3 kPa |
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Authors: | Gomis, Alejandro | Garcia-Cano, Jorge | Asensi Steegmann, Juan Carlos | Font, Alicia | Gomis Yagües, Vicente |
Research Group/s: | Equilibrio entre Fases |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Química |
Keywords: | Water | 1-Propanol | 2-Propanol | Na2SO4 | K2SO4 | Isobaric | Solid-liquid-liquid-vapor | Phase diagram | UNIQUAC |
Knowledge Area: | Ingeniería Química |
Issue Date: | 1-May-2020 |
Publisher: | Elsevier |
Citation: | Fluid Phase Equilibria. 2020, 511: 112499. doi:10.1016/j.fluid.2020.112499 |
Abstract: | Thermodynamically consistent phase equilibrium data at 101.3 kPa and boiling conditions were determined for the ternary systems water + Na2SO4 + 1-propanol, water + Na2SO4 + 2-propanol, water + K2SO4 + 1-propanol and water + K2SO4 + 2-propanol. In contrast to the systems with Na2SO4, the salting-out effect of K2SO4 was not sufficient to split the miscible propanol + water mixture into two liquid phases. The UNIQUAC equation extended to electrolytes for the liquid phase activity coefficients was used to predict the phase equilibria of all the systems. The model reproduced the experimental results quite well, except for the ternary system water + K2SO4 + 1-propanol. In this case the model predicted liquid-liquid splitting into two liquid phases, when there is not. |
Sponsor: | We would like to thank the DGICYT of Spain for the financial support of project CTQ2014-59496. |
URI: | http://hdl.handle.net/10045/102909 |
ISSN: | 0378-3812 (Print) | 1879-0224 (Online) |
DOI: | 10.1016/j.fluid.2020.112499 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2020 Elsevier B.V. |
Peer Review: | si |
Publisher version: | https://doi.org/10.1016/j.fluid.2020.112499 |
Appears in Collections: | INV - EQF - Artículos de Revistas |
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2020_Gomis_etal_FluidPhaseEquilibria_final.pdf | Versión final (acceso restringido) | 1,79 MB | Adobe PDF | Open Request a copy |
2020_Gomis_etal_FluidPhaseEquilibria_preprint.pdf | Preprint (acceso abierto) | 1,15 MB | Adobe PDF | Open Preview |
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