The sorption equilibria in natural zeolite - aqueous solutions systems (CROSBI ID 485605)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Perić, Jelena ; Trgo, Marina ; Cerjan-Stefanović, Štefica
engleski
The sorption equilibria in natural zeolite - aqueous solutions systems
Equilibrium properties of the hydrolysis and ion exchange process have been examined in natural and pre-treated zeolite-clinoptilolite by measuring the concentration of exchangeable Na^+, K^+, Ca^2+ and Mg^2+ ions with time in the liquid phase. The analysis of the relation of concentrations of ionic species leaving the zeolite and those entering the zeolite structure (H^+, Zn^2+) has found this process to be a non-stoichiometric one.The established non-stoichiometry of the overall mass transfer process through the outer and inner surface of zeolite particles is due to the strength of the bond of exchangeable ions in the structure, as a phenomenon of sorption. The sorption takes place on characteristic locations on the zeolite particle surface, which has been confirmed by SEM images and EDX analysis.
natural zeolite; sorption; Zn-ions
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
243-x.
2001.
objavljeno
Podaci o matičnoj publikaciji
Zeolites and mesoporous materials at the down of the 21st century
Galarneau, A. ; Di Renco, F. ; Fajula, F.
Amsterdam : Paris: Elsevier
Podaci o skupu
13th International Zeolite Conference
poster
08.07.2001-13.07.2001
Montpellier, Francuska