ANALYSIS OF ZEOLITE CRYSTALLIZATION BY USING THE KINETIC COMPENSATIONEFFECT

Authors
MINTOVA S VALTCHEV V
Citation
S. Mintova et V. Valtchev, ANALYSIS OF ZEOLITE CRYSTALLIZATION BY USING THE KINETIC COMPENSATIONEFFECT, Materials research bulletin, 28(9), 1993, pp. 915-922
Citations number
12
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
28
Issue
9
Year of publication
1993
Pages
915 - 922
Database
ISI
SICI code
0025-5408(1993)28:9<915:AOZCBU>2.0.ZU;2-E
Abstract
Zeolite ZSM-5 was synthesized from aluminosilicate gels with different Si/Al ratio in the presence of organic templates-tetrapropylammonium bromide(TPA.Br) and pyrrolidine(Py) at temperatures of 423, 438 and 45 3 K. Kinetics parameters for regions of nucleation and crystal growth were obtained. A kinetic compensation effect (KCE) were established be tween activation energy and preexponential factor for nucleation and c rystallization processes. The crystallization mechanism was discussed on the basis of the kinetic features and observed correlations.