Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10270757 | Fluid Phase Equilibria | 2005 | 6 Pages |
Abstract
The co-solubility in supercritical carbon dioxide of 1-butanol, 1-pentanol, 2-ethyl-1-hexanol, or 1-decanol in the presence of 2-ethylhexanoic acid in the pressure range of 100-180 bar and at 313 or 323 K was measured. The solubility of these alcohols in the presence of 2-ethylhexanoic acid is lower than in the systems alcohol + CO2 and remains nearly constant in the pressure range of 120-180 bar, with the exception of 1-decanol. The lower selectivities in the ternary systems are explained by strong intermolecular hydrogen bonding between alcohol molecules and 2-ethylhexanoic acid molecules. The FT-IR spectra of mixtures of alcohols and 2-ethylhexanoic acid at a 1:1 mole ratio in the liquid CCl4 confirmed this conclusion.
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
H.S. Ghaziaskar, A. Daneshfar, M. Rezayat,