Interaction between h-bentonite and basic aluminum salts |
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| Authors: | T Eschena A Violante |
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| Institution: | Istituto di Chimica Agraria dell''Università di Napoli, Portici Italy |
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| Abstract: | H-Al-clays and Al-clays with adsorbed Al3+ were obtained by treating H-clay with basic aluminum chlorides at different concentrations and OH/AL < 2 ratios. HAl(OH)n-clays and Al(OH)n-clays, on the contrary, were obtained by treating H-clay with basic aluminum chlorides with OH/Al > 2 ratios; further, the more concentrated the exchanging solution of basic aluminum chlorides, the more hydroxylated were the aluminum ions bound to the exchanger.The system HAl(OH)n-clay is unstable and tends to convert into a more stable aluminum clay system by neutralization between adsorbed basic aluminum and hydrogen ions. |
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