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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(5) [September 2011] >
| Title: | Synthesis of zeolite ferrierite–Role of emulsifiers |
| Authors: | Chauhan, Nilam L
Murthy, Z V P
Das, Jagannath
Parikh, Parimal A |
| Keywords: | Benzotriazole
Emulsifier
Ferrierite
Zeolite |
| Issue Date: | Sep-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Synthesis of ferrierite (FER) type zeolite
using piperidine as templating agent has been studied in the presence of different
types of emulsifier at various concentration levels. Use of cationic emulsifier
(cetyl trimethyl ammonium bromide), results in amorphous phase, while with
anionic emulsifier (sodium lauryl sulphate or SLS) and non-ionic emulsifier
(sorbital mono stearate or Span 60), pure FER phases with close to nano-sized
crystallites are obtained. Influence of a new non-ionic emulsifier
(benzotriazole) has been investigated in detail. Effects of mode of synthesis
(static or stirring), synthesis temperature and ratio of templating agent to
benzotriazole are studied. Stirring of the synthesis gel in presence of
benzotriazole results in pure FER phase with crystallite size of <500 nm. With
the increase in benzotriazole to piperidine ratio, crystallinity of the FER
phase reduces exponentially at 150°C due to lower crystallization
rate. On the contrary at 170°C the increase in α quartz
formation is observed with the increase in the benzotriazole to piperidine
ratio. |
| Page(s): | 335-342 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(5) [September 2011]
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