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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2018.28.5.320

Sorption Characteristics of Butanol/Water and Isopropanol/Water Solutions on the FASs Coated Inorganic Membrane  

Lee, Kwang-Rae (Department of Chemical Engineering, Kangwon National University)
Publication Information
Membrane Journal / v.28, no.5, 2018 , pp. 320-325 More about this Journal
Abstract
The sorption amounts of butanol/water and isopropanol/water solution on the surface modified with FASs (fluoroalkylsilanes) hydrophobic membrane were measured and analyzed using Hansen's solubility parameters. The difference of the solubility parameter of butanol (${\delta}_t=20.4$) and that of the surface modified with FASs hydrophobic membrane (${\delta}_t=16.9$) was greater than the case of isopropanol (${\delta}_t=24.6$), which might explain the result that the sorption amount of butanol was much higher than that of isopropanol. We might also explain the effect of the polar force (${\delta}_p$) on the sorption amount. The difference (${\Delta}$) between FASs polar force (${\delta}_p=4.6$) and butanol polar force (${\delta}_p=6.3$) was much smaller than that between FASs polar force (${\delta}_p=4.6$) and isopropanol polar force (${\delta}_p=9.0$), which meant that the interaction of butanol-FASs was much greater than that of isopropanol-FASs, and resulted in greater sorption amount of butanol on the FASs. This study showed Hansen's solubility parameters might be used for analysis of sorption characteristics of alcohol on membrane and solubility of solute in solvent.
Keywords
sorption; butanol; isopropanol; inorganic membrane; solubility parameters;
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Times Cited By KSCI : 1  (Citation Analysis)
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