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Indexed by:期刊论文

Date of Publication:2011-12-01

Journal:SOLID STATE SCIENCES

Included Journals:Scopus、SCIE、EI

Volume:13

Issue:12

Page Number:2124-2128

ISSN No.:1293-2558

Key Words:Magadiite; Zeolite; Synthesis; Transformation; Characterization

Abstract:This study investigated the transformation of magadiite into ferrierite in Al2O3-Na2O-ethylenediamine (EDA)-H2O system. The influence of various parameters such as reaction temperature, time, alkalinity, the reactant Na2O/SiO2 ratio and EDA/SiO2 ratio were examined. Thermal and acid stability of the synthetic ferrierite are presented. Highly crystallized and pure ferrierite could be obtained from dispersion with the molar composition: 0.01 Na2O: 0.005 Al2O3: SiO2: 30 H2O: 20 EDA by heating at 433 K for 48 h. The structure of ferrierite was destroyed when the temperature rose above 873 K and the framework of the sample, stirred in 5 mol/L HCl for 3 h, is consistent with the untreated ferrierite. (C) 2011 Published by Elsevier Masson SAS.