Equilibrium Diagrams of Water + NaCl or KCl + 2-Methyl 2-Propanol at the Boiling Temperature and 101.3 kPa

Abstract

Experimental equilibrium data of the systems water + NaCl or KCl+ 2-methyl 2-propanol are determined experimentally at boiling conditions and 101.3 kPa. The results obtained permit a study of the shape and different regions of their equilibrium diagrams. A comparison with similar diagrams of other alcohols is made, demonstrating that the ability of NaCl and KCl to split the water + alcohol mixture into two liquid phases increases with temperature and that NaCl splits the alcohols from water in the following order: 2-methyl 2-propanol >1-propanol> 2propanol.

Modeling vapor-liquid-liquid-solid equilibrium for acetone-water-salt system

“…Liquid-liquid phase splits in alcohol-water mixtures with salts have been well studied, modeled, and reported in literature [12]. Much less attention has been given to acetone-water mixtures.…”

Use of Ultrasound in the Determination of Isobaric LLV, SLV, and SLLV Equilibrium Data. Application to the Determination of the Water + Na2SO4 or K2SO4 + 2-Methylpropan-2-ol Systems at 101.3 kPa and Boiling Conditions

“…In addition to the mass transfer required to reach the equilibrium state between the liquid phases and between the liquid and the vapor, the mass transfer between the solid and the liquid phase should be enhanced. Ultrasonic waves can also be used, as shown previously [8][9][10] . As in the case of LLV equilibrium, the ultrasonics promote a dispersion of the phases and increase the mass transfer between them.…”

“…In addition to the mass transfer required to reach the equilibrium state between the liquid phases and between the liquid and the vapor, the mass transfer between the solid and the liquid phase should be enhanced. Ultrasonic waves can also be used, as shown previously. − As in the case of LLV equilibrium, the ultrasonics promote a dispersion of the phases and increase the mass transfer between them. In this particular case, the dispersion promoted by the ultrasonic waves disaggregates the solid into particles with a small effective diameter, increasing the surface/volume ratio.…”