سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۹

نویسنده(ها):

S.H jazayeri – Mineral Processing Research Laboratory(MPRL), Chemical Engineering Department, Iran University of Science
m habibian – Mineral Processing Research Laboratory(MPRL), Chemical Engineering Department, Iran University of Science
m ghannadi – Jaber Ibn Hayan Research Laboratories, P.O.Box 11365/8486 , Tehran,Iran
m hayati-ashtiani – Jaber Ibn Hayan Research Laboratories, P.O.Box 11365/8486 , Tehran,Iran

چکیده:

This study mainly aims at investigating the instrumemtal analyses of the zeolites of three commercial
bentonites namely S1-RAW, S2-RAW, and S4-RAW from Semnan Province, Iran.
Scanning electron microscopy (SEM),Thermal analysis (TGA-DSC), Fourier-transform infra-red (FTIR),
X-ray powder diffraction (XRPD) , X-Ray Fluorescence (XRF), and CHNS were used for the
characterization of the samples.
SEM showed the presence of zeolitic materials accompanied with thin flakes and very fine particles
having nano-structure and nano-pore Montmorillonite which is the dominant clay mineral constituent of
bentonite. Before other instrumental analysis, it was necessary to determine the organic content of clay
through CHNS ( Carbon, Hydrogen,Nitrogen and Sulfure )test. XRPD spectrum showed the presence of the
heulandite group type of zeolitic materials and XRF analysis showed a large amount of alumina and silicate
content of each sample.The exact clinoptilolite (clino) member was determined by complementary TGADSC
analysis. Water content of each sample was investigated by FTIR.