Research of the Chemical Composition and Ion Exchange Properties of Karaçeva Bentonite

Abstract

The value of pH varies depending on the activation of bentonite, by increasing the concentration of sulfuric acid, increases the acidity. With the rise of the pH value, we have a continuous increase of ion exchange capacity of bentonite, so high values of pH, we have a high capacity to exchange cations. The ion exchange capacity of natural samples of Karaçeva bentonite, varies according to the depth of drilling, with increase of the percentage of activation, have significant increase of ion exchange capacity for all investigated samples. By experimental measurements, it was found that the Karaçeva bentonite has good ion exchange properties.