DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/7028

Title: Supported 12-tungstophosphoricacid: An efficient and selective solid acid catalyst for tert-butylation of phenol and cresols
Authors: BHATT, N
SHARMA, P
PATEL, A
SELVAM, P
Keywords: heteropoly compounds
hydrous zirconia
alkylation
liquid
benzene
alcohol
salts
Issue Date: 2008
Publisher: ELSEVIER SCIENCE BV
Citation: CATALYSIS COMMUNICATIONS, 9(7), 1545-1550
Abstract: 12-Tungstophosphoricacid (30%) supported onto zirconia was synthesized by impregnation. The synthesized catalyst was characterized by solid state NMR and XPS in order to study the nature of active species on support surface. The acidity of the catalyst was measured by temperature programmed desorption (TPD) of NH3. Liquid phase alkylation of phenol and cresols with tert-butyl alcohol was carried out using fresh as well as calcined catalyst under mild conditions. The catalysts show high activity in terms of conversion and selectivity for the desired product under mild conditions. The process could be economically viable as the un-reacted phenol could be separated by simple distillation and reused for further reaction. Studies also reveal that the regenerated catalyst could be used for achieving high yield transformation. (C) 2008
URI: http://dx.doi.org/10.1016/j.catcom.2007.12.027
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7028
http://hdl.handle.net/10054/7028
ISSN: 1566-7367
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback