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The results of spectral research (IR, UV-Vis) of activation process of calcium montmorillonite Ca-MMT by sodium cations are presented in this article. Modifications Ca-MMT were carried out by modifier in the form of sodium carbonate by keeping different times of activations. On the base of received sodium modifiers MMT (Na-MMT) analytical cycle of research was done, including structural (IR) and spectrophotometric (UV-Vis) researches, in order for designation of ions exchange ability (CEC). There was observed that the method of processing modification (changing activation time) does not affect on ion exchange ability Na-MMT. Application of modified MMT used as a binding material in greensand will be described in next part of planned researches.

STUDY ON THE ACTIVATION OF CALCIUM MONTMORILLONITE (CA-MMT) BY SODIUM CATIONS