1989
DOI: 10.1021/bk-1989-0398.ch009
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Role of Gel Aging in Zeolite Crystallization

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Cited by 28 publications
(38 citation statements)
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“…Modeling studies [42], kinetic analysis [43,44] and experiments based on analysis of ultimate product particle sizes as a function of different ageing times [41] have allowed interpretation of ageing-nucleation relationship and supported the conclusion. XRD analysis of the solid samples extracted before heating began (results not presented here) could not detect formation of any crystalline material.…”
Section: Discussionmentioning
confidence: 73%
“…Modeling studies [42], kinetic analysis [43,44] and experiments based on analysis of ultimate product particle sizes as a function of different ageing times [41] have allowed interpretation of ageing-nucleation relationship and supported the conclusion. XRD analysis of the solid samples extracted before heating began (results not presented here) could not detect formation of any crystalline material.…”
Section: Discussionmentioning
confidence: 73%
“…In other words, an autocatalytic nucleation can be defined as an induction period of nucleation, which is immediatedly followed by a rapid crystal growth stage. Several studies have been conducted to reinforce this theory (Subotic and Graovac, 1985;Bronic et al, 1987;Subotic 1989;Katovic, 1989;Subotic and Bronic, 1993). Ciric (1968) studied the kinetics of zeolite A crystallization at 100 o C by varying NaOH.…”
Section: Mechanisms Of Zeolite Transformationmentioning
confidence: 98%
“…This treatment of the hydrogel is known as ''ageing'' or ''ripening'', and is often crucial for obtaining the desired crystalline phase and accelerating the crystallization [37]. This treatment of the hydrogel is known as ''ageing'' or ''ripening'', and is often crucial for obtaining the desired crystalline phase and accelerating the crystallization [37].…”
Section: Precursor Speciesmentioning
confidence: 99%
“…Katovic et al [37] studied the competitive crystallization of zeolite Na − X and cubic Na − P, denoted with Pc. The crystallization yield and nature of the zeolite phase obtained depend on the ageing period of the hydrogel.…”
Section: Precursor Speciesmentioning
confidence: 99%
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