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Enthalpy of Adsorption and Isotherms for Adsorption of Naphthenic Acid onto Clays |
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| Authors: | Lizhuang Zou Buxing Han Haike Yan KL Kasperski Yuming Xu LG Hepler |
| Institution: | aInstitute of Chemistry, Academia Sinica, Beijing, 100080, China;bCANMET, Energy Mines and Resources Canada, Devon, Alberta, Canada, TOC 1EO;cDepartment of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G2G2 |
| Abstract: | The enthalpies of adsorption and the isotherms for adsorption of naphthenic acid onto Na-montmorillonite, Na-kaolinite, and Na-illite were studied by means of calorimetry and the static method at 298.15 K. The results show that the enthalpies of adsorption and saturated adsorption amounts of naphthenic acid on different clays change in the order Na-montmorillonite > Na-illite > Na-kaolinite. The interaction between naphthenic acid and clays is discussed. |
| Keywords: | enthalpy of adsorption adsorption isotherm naphthenic acid clay enthalpy of dilution |
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