ADSORPTION-ENERGETIC AND IR SPECTROSCOPIC STUDIES OF NH4 NATROLITE

Authors
MIRZAI DI GULIEV TM AKHMEDOV VN ISIRIKYAN AA
Citation
Di. Mirzai et al., ADSORPTION-ENERGETIC AND IR SPECTROSCOPIC STUDIES OF NH4 NATROLITE, Russian chemical bulletin, 47(2), 1998, pp. 352-354
Citations number
9
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
47
Issue
2
Year of publication
1998
Pages
352 - 354
Database
ISI
SICI code
1066-5285(1998)47:2<352:AAISSO>2.0.ZU;2-K
Abstract
The ammonium form of natural zeolite, natrolite, obtained by vapor pha se ion exchange is similar to calcium-containing zeolites of the natro lite group in its de-and rehydration characteristics and the heats of immersion in water. The adsorption capacity and the heat of immersion in water are maximum after evacuation of the zeolite at 200 degrees C. The irreversible sintering of NH4 natrolite occurs above 200 degrees C (up to 45% at 500 degrees C), accompanied by the formation of hydrox yl groups.