Physicochemical and structural characteristics of HEU-type zeolitic tuff treated by hydrochloric acid

Samples of natural HEU-type zeolites clinoptilolite-Ca, from the Novakovici deposit (near Prijedor, Bosnia and Herzegovina) were treated with the hydrochloric acid of various concentrations (from 10-3 M to 2 M). Zeolitic tuffs before and after the acid treatment were examined using IR, XRPD, and che...

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Bibliographic Details
Published in:Journal of the Serbian Chemical Society 2004-04, Vol.69 (4), p.273-281
Main Authors: MAGDALENA TOMASEVIC-CANOVIC, JOVAN LEMIC, ALEKSANDRA DAKOVIC, VERA DONDUR, ANA RADOSAVLJEVIC-MIHAJLOVIC
Format: Article
Language:English
Subjects:
acid modification
HEU-type zeolite
Novakovici
X-ray analysis
Online Access:Get full text
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Summary:Samples of natural HEU-type zeolites clinoptilolite-Ca, from the Novakovici deposit (near Prijedor, Bosnia and Herzegovina) were treated with the hydrochloric acid of various concentrations (from 10-3 M to 2 M). Zeolitic tuffs before and after the acid treatment were examined using IR, XRPD, and chemical analyses. The changes in the crystal structure of acid treated samples showed a significant reduction in the crystallinity of zeolitic tuffs (6070 %), which were effected by hydrochloric acid with concentrations of 1 M and above.
ISSN:0352-5139