Liquid-phase adsorption of monosaccharide–water mixtures on X and Y zeolites
Abstract
A systematic study has been performed on the adsorption of D-fructose–, D-glucose– and D(–)-arabinose–water mixtures on K+, Sr2+, Ca2+, Ba2+ and La3+ ion-exchanged X and Y zeolites. From the adsorption excess isotherms the separation factors K and the equilibrium diagrams xs2vs.x12 of the binary mixtures were calculated. The possible triangles of O atoms of monosaccharides, their interactions with cations, the influence of crystallographic cation positions and the Si : Al ratio of zeolites on formation of adsorption complexes were analysed.