INVESTIGATION OF CHROMATOGRAPHIC PROPERTIES OF TRANSCARPATHIAN CLINOPTILOLITE

The influence of the concentration and time of action of hydrochloric acid on the chromatographic properties of clinoptilolite was studied. The effect of the degree of dealumination of natural zeolite on the nature of changes in the chromatographic and thermodynamic parameters of the separation of model mixtures containing low-boiling (О2, N2) and oxide gases (СО, СО2, N2O), gaseous alkanes and olefins, vapours of saturated hydrocarbons, which are permanent components or pollutants, is shown. air. The optimal values of the silicate module were found in the range from 9.8 to 15.1, which ensure the maximum chromatographic retention of the components. Developed silver- and copper-containing modifications of natural clinoptilolite for separation of CO-CO2 carbon oxides. The possibility of regulating the output sequence of these components from the chromatographic column by changing the temperature and content of exchangeable cations is shown. On copper modifications of clinoptilolite containing 0.85 % of Сu2+ cations, the effect of low substitutions was revealed, which is manifested by a sharp increase in retained volumes for СО and С2Н4, heats of adsorption, changes in Gibbs potentials.