Adsorption Behavior of Acid-Leached Clays in Bleaching of Oil

作     者：I. Z. Mukasa-Tebandeke P. J. M. Ssebuwufu S. A. Nyanzi G. W. Nyakairu M. Ntale F. Lugolobi Schumann Andreas 

作者机构：Department of Chemistry Makerere University Kampala Uganda Department of Earth Sciences Wesleyan University Middletown USA Department of Geology Makerere University Kampala Uganda 

出 版 物：《American Journal of Analytical Chemistry》 (美国分析化学（英文）)

年 卷 期：2015年第6卷第6期

页      面：495-512页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Adsorption Isotherms Bleaching Acid Activation Clays 

摘      要：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.