Chemical changes in the structure as a result of mechanical activation of clinoptilolite

In the research work, changes were observed in the structure of clinoptilolite samples obtained by mechanical activation of minerals containing zeolite under various conditions. The IR spectra of the minerals of the Karmaninsky deposit before and after activation were studied, and the possibility of introducing K+, Na+, Ca2+ ions into the crystal structure of clinoptilolite and their migration was established. Mutual difference between samples 1k and 2k, obtained on the basis of mechanical activation, shows their belonging to the mineral calcite with inclusions, the presence of an absorption line at 1427 cm−1, as well as the presence of carbonate in samples 1k and 1'k, that is, C-O bonds cause valence and vibrations, one can observe absorption bands at 1427 and 725 cm−1, which are not observed in samples 2k and 2′k. The mineral calcite has a lower Mohs hardness than clinoptilolite, and this difference indicates that samples 1k and 2k have different degrees of defectiveness. Before using various rocks containing zeolite, it was found that the choice of optimal conditions and phase composition for mechanical activation, as well as an increase in the activity of exchange cations and their migration from large to small spaces, is one of the most important factors. The purpose of this work is to study changes in the structure of the mineral clinoptilolite in a sample obtained as a result of mechanical activation of zeolite-containing rocks.

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