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Vapor-phase tertiary butylation of phenol over mesoporous gallosilicate molecular sieves

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Field Value
 
Title Vapor-phase tertiary butylation of phenol over mesoporous gallosilicate molecular sieves
 
Creator SAKTHIVEL, A
SELVAM, P
 
Subject alkylation
mcm-41
zeolites
catalyst
h-gamcm-41
tertiary butylation
acid catalysts
para-tertiary butyl phenol
 
Description Isomorphously substituted GaMCM-41 molecular sieves with different Si:Ga ratio were synthesized and characterized systematically by various analytical and spectroscopic techniques. Temperature-programmed desorption of ammonia was used to identify the nature of acidic sites. For the first time, the vapor-phase tertiary butylation of phenol reaction was carried out over protonated GaMCM-41. The catalysts showed higher (phenol) conversion and good (para-tertiary butyl phenol) selectivity over the Al- and Fe-analogs of MCM-41. Further, the gallosilicates showed good stability both before and after the reaction compared to the aluminosilicates or ferrisilicates.
 
Publisher KLUWER ACADEMIC/PLENUM PUBL
 
Date 2011-10-22T12:38:57Z
2011-12-15T09:10:55Z
2011-10-22T12:38:57Z
2011-12-15T09:10:55Z
2002
 
Type Article; Proceedings Paper
 
Identifier CATALYSIS LETTERS,84,37-43
1011-372X
http://dx.doi.org/10.1023/A:1021016415765
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14899
http://hdl.handle.net/100/1737
 
Source International Symposium on Acid-Base Catalysis IV (ABC IV),MATSUYAMA, JAPAN,MAY 07-12, 2001
 
Language English