Adsorption equilibrium data for substituted phenols on activated carbon
Adsorption equilibria for 4 phenols were studied on Filtrasorb-400 activated carbon at 30 plus or minus 2 degree C. The Freundlich constants k and n were determined. A new model was developed using a thermodynamic approach, and an equation was obtained which is similar to the Freundlich model with c...
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Veröffentlicht in: | Journal of chemical and engineering data 1992-04, Vol.37 (2), p.175-179 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Adsorption equilibria for 4 phenols were studied on Filtrasorb-400 activated carbon at 30 plus or minus 2 degree C. The Freundlich constants k and n were determined. A new model was developed using a thermodynamic approach, and an equation was obtained which is similar to the Freundlich model with constants J and m. The constant J was correlated against the number of carbon atoms in the adsorbate and its measured solubility in water. The correlation resulted in a division of the phenols into two groups: polar molecules and nonpolar molecules, which showed opposite behavior with respect to the activity coefficient of the adsorbed molecule as interpreted from their Freundlich isotherms. |
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ISSN: | 0021-9568 1520-5134 |
DOI: | 10.1021/je00006a010 |