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IJCT Vol.15(3) [May 2008] >


Title: Synthesis of monoesters and diesters using eco-friendly solid acid catalysts- M(IV) tungstates and phosphates
Authors: Joshi, Rikesh
Patel, Heemanshu
Chudasama, Uma
Keywords: Solid acid catalyst
Esterification
M(IV) phosphates and tungstates
Tetravalent metal acid salts
Inorganic ion exchangers
Issue Date: May-2008
Publisher: CSIR
Abstract: The present study involves synthesis and characterization of amorphous M(IV) phosphates and tungstates [M(IV) = Zr, Ti and Sn] which are inorganic ion exchangers of the class of tetravalent metal acid (tma) salts. The presence of protons contained in the structural hydroxyl groups indicates good potential for application in solid acid catalysis. The catalytic activity of the materials abbreviated as ZrP, TiP, SnP, ZrW, TiW and SnW has been explored by synthesizing some monoesters and diesters. Good yields are obtained in the case of monoesters as compared to diesters. The results reveal the promising use of tma salts as solid acid catalysts.
Page(s): 238-243
ISSN: 0971–457X
Source:IJCT Vol.15(3) [May 2008]

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