Napredna pretraga

Pregled bibliografske jedinice broj: 92865

The sorption equilibria in natural zeolite - aqueous solutions systems


Perić, Jelena; Trgo, Marina; Cerjan-Stefanović, Štefica
The sorption equilibria in natural zeolite - aqueous solutions systems // Zeolites and mesoporous materials at the down of the 21st century / Galarneau, A. ; Di Renco, F. ; Fajula, F. (ur.).
Amsterdam-Paris: Elsevier, 2001. (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
The sorption equilibria in natural zeolite - aqueous solutions systems

Autori
Perić, Jelena ; Trgo, Marina ; Cerjan-Stefanović, Štefica

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zeolites and mesoporous materials at the down of the 21st century / Galarneau, A. ; Di Renco, F. ; Fajula, F. - Amsterdam-Paris : Elsevier, 2001

Skup
13th International Zeolite Conference

Mjesto i datum
Montpellier, Francuska, 08.-13.07.2001

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Natural zeolite; sorption; Zn-ions

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekt / tema
011007

Ustanove
Kemijsko-tehnološki fakultet, Split