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Phillipsite‐type synthetic zeolite with high silica contents and accompanying phases
Author(s) -
Cichocki A.,
Grochowski J.,
Lebioda Ł.
Publication year - 1979
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19790140103
Subject(s) - zeolite , crystallization , molar ratio , chemical engineering , chemistry , materials science , mineralogy , nuclear chemistry , catalysis , organic chemistry , engineering
A zeolite of P type with a molar ratio SiO 2 : Al 2 O 3 of about 6 was obtained on laboratory and on enlarged scale, by synthesis carried out at 100°C in Na 2 OK 2 OSiO 2 Al 2 O 3 H 2 O system, without complexing agents. It was found that the products depend not only on the chemical composition of hydrogel but also on the kinetic factors such as: the material of the reactor wall, the amount of substrates taken for crystallization and stiring. It was found that the stability of zeolites increases in the order: L < T < Ch < P. The factors accelerating crystallization led to the more stable zeolites as products. The paper shows difficulties in implementing the laboratory results into an industrial production.