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|Title: ||Vapor-phase tertiary butylation of phenol over mesoporous gallosilicate molecular sieves|
|Authors: ||SAKTHIVEL, A|
|Issue Date: ||2002|
|Publisher: ||KLUWER ACADEMIC/PLENUM PUBL|
|Citation: ||CATALYSIS LETTERS,84,37-43|
|Abstract: ||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.|
|Appears in Collections:||Proceedings papers|
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