Author(s)

I. Z. Mukasa-Tebandeke^1*, P. J. M. Ssebuwufu¹, S. A. Nyanzi¹, G. W. Nyakairu¹, M. Ntale¹, F. Lugolobi², Schumann Andreas³

¹Department of Chemistry, Makerere University, Kampala, Uganda.
²Department of Earth Sciences, Wesleyan University, Middletown, USA.
³Department of Geology, Makerere University, Kampala, Uganda.

The available data have shown that acid-leached clays had sites for adsorption of impurities in oils. Data obtained on residual impurities in cotton and sunflower-seed oils bleached with the same clay materials produced linear Langmuir and Freundlich isotherms. The increase in constant, k with increase in both temperature of thermal activation and concentration of acid used to leach the clay, suggests that bleaching efficiency increased. The value of n decreased with increase in temperature of activation and concentration of acid used to leach the clay suggesting that bleaching capacity increased. The mineral compositions of the clays influenced their surface, structural and bleaching properties.

Adsorption Isotherms, Bleaching, Acid Activation, Clays

Mukasa-Tebandeke, I. , Ssebuwufu, P. , Nyanzi, S. , Nyakairu, G. , Ntale, M. , Lugolobi, F. and Andreas, S. (2015) Adsorption Behavior of Acid-Leached Clays in Bleaching of Oil. American Journal of Analytical Chemistry, 6, 495-512. doi: 10.4236/ajac.2015.66049.