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<p class="BATitle">Efficient soluble and polymer cross linked insoluble poly-4-vinyl pyridine metal(V) chloride catalysts for esterification of butanol with acetic acid</p>

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Title Statement <p class="BATitle">Efficient soluble and polymer cross linked insoluble poly-4-vinyl pyridine metal(V) chloride catalysts for esterification of butanol with acetic acid</p>
 
Added Entry - Uncontrolled Name Murugan, Eagambaram ; Department of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Guindy, Chennai 600 025, Tamil Nadu, India
Arunachalam, Palaniappan ; Department of Physical Chemistry, School of Chemical Sciences, University of Madras, Maraimalai Campus, Guindy, Chennai 600 025, Tamil Nadu, India
Jebaranjitham, J Nimita; PG Department of Chemistry, Women’s Christian College (An Autonomous Institution affiliated to University of Madras), College Road, Chennai-600 006, Tamil Nadu, India
 
Uncontrolled Index Term Esterification; Polymer supported metal complex catalyst
 
Summary, etc. <p style="text-align: justify;">New soluble and insoluble Ta, Mo and Sb pentachloride complex catalysts have been prepared using pyridine and polymer supported cross-linked (poly-4-vinyl pyridine) beads (PSCPVP), respectively. The prepared catalysts are characterized with FTIR, SEM, EDAX, CHN and TGA. The catalytic activities of these catalysts have been examined for esterification of acetic acid with butanol through gas chromatographic technique. The soluble complex catalyst show better activity than the insoluble catalyst, but it suffers from recovery and recyclability. The insoluble catalysts maintain stability up to three recycle times. From the k<sub>obs</sub> values, it is found that all the soluble catalysts of Py-MCl<sub>5</sub>, M=Ta, Mo &amp; Sb (k<sub>obs</sub>=7.26, 5.48 &amp; 1.47×10<sup>3</sup> min<sup>-1</sup>) showed higher catalytic activity than the insoluble PSCPVP-MCl<sub>5</sub> (k<sub>obs</sub>=5.18, 2.24 &amp; 0.87 x10<sup>3</sup> min<sup>-1</sup>)<sub>, </sub>but the latter catalysts are superior to the former in terms of recyclability. The catalytic activity of soluble Py-TaCl<sub>5</sub>, Py-MoCl<sub>5</sub>, Py-SbCl<sub>5 </sub>catalyst is found to be 1.40, 2.44 and 1.68 times higher than PSCPVP-TaCl<sub>5</sub>, PSCPVP-MoCl<sub>5</sub> and PSCPVP-SbCl<sub>5</sub>, respectively. PSCPVP-TaCl<sub>5</sub> catalyst is found to be the superior most catalyst among the three catalysts. Further, these catalysts can be used in column batch reactors to conduct the reaction in continuous mode.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-10-06 15:05:21
 
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http://op.niscair.res.in/index.php/IJCA/article/view/41278
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 59, ##issue.no## 9 (2020): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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