Formation and properties of the hydrogen form of mordenite

Abstract

1. The adsorption of vapors of n-pentane and diethyl ether by sodium and modified hydrogen forms of mordenite experiences a strong kinetic inhibition, which makes it difficult to obtain reversible isotherms of equilibrium adsorption. 2. Despite the low rate of adsorption and difficulty of achieving adsorption equilibrium, the bulk of the adsorbed substance is adsorbed at very low relative pressures. 3. An increase in the degree of dealumination, leading to an enlargement of the micropores, promotes an increase in the magnitude and rate of adsorption of n-pentane and diethyl ether vapors. 4. The adsorbability of diethyl ether vapors on samples of H-mordenite with a high degree of dealumination is 30–40% higher than that of n-pentane vapors.