The Impact of Acid Activation on Ion Exchange Properties of Kosova Bentonite

Abstract

Experimental researches are conducted on samples of the two characteristic regions deposits of bentonite-Kamenica and Vitia. Potentiometric titration method is used to determine the ion exchange capacity of natural bentonite and activated with acid. Within the paper is researched the impact of the degree of acid activation in ion exchanger capacity of Kabashi bentonite. They used three different concentrations of acid solution: 10 % HCl, 20 % HCl and 30 % HCl. The natural bentonite of Karaçeva has shown greater capacity of ion exchange than natural bentonite of Gushicë and Kabash. The ion exchange capacity of Kabashi bentonite increase after acid activation compared with ion exhange of natural bentonite.