NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.51A [2012] >
IJC-A Vol.51A(09-10) [September-October 2012] >


Title: Synthesis of 1,2-glycerol carbonate from carbon dioxide: The role of methanol in fluid phase equilibrium
Authors: Podila, S
Plasseraud, L
Cattey, H
Ballivet-Tkatchenko, D
Carrera, G V S M
Nunes da Ponte, M
Neuberg, S
Behr, A
Keywords: Glycerol
Glycerol carbonate
Carbon dioxide
Methanol
Fluid phase equilibrium
Vapour-liquid equilibrium
Dibutyltin glycerolate
X-ray structure
Issue Date: Sep-2012
Publisher: NISCAIR-CSIR, India
Abstract: The effect of methanol on the synthesis of 1,2-glycerol carbonate from CO2 and glycerol is studied in the presence of Bu2Sn(OCH3)2, n-Bu2SnO, and tert-Bu2SnO. At 423 K, up to 2.7 mol% yield in glycerol carbonate, based on glycerol, could be obtained in the pressure range 14-20 MPa. Addition of acetonitrile promotes notably the yield to 7 mol%. Fluid phase equilibrium experiments with the ternary mixture CO2/glycerol/methanol show that the reaction takes place in a liquid phase where methanol dissolves glycerol, CO2, and the tin complexes. Above ~0.6 mole fraction, CO2 behaves as an anti-solvent, separating methanol from glycerol, thus inhibiting the formation of 1,2-glycerol carbonate. Dimethyl carbonate is a side-product of glycerol carbonation resulting mainly from transesterification between glycerol carbonate and methanol. Glycerol coordination to tin center is evidenced by the isolation of di-tert-Bu2Sn(1,2-glycerolate) complex. Its structure determination by single-crystal X-ray diffraction shows that the remaining OH group of glycerol promotes the formation of one-dimensional polymeric chain.
Page(s): 1330-1338
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0975(Online); 0376-4710(Print)
Source:IJC-A Vol.51A(09-10) [September-October 2012]

Files in This Item:

File Description SizeFormat
IJCA 51A(9-10) 1330-1338.pdfMain article188.89 kBAdobe PDFView/Open
IJCA 51A(09-10) 1330-1338_Suppl Data.pdfSupplementary data236.55 kBAdobe PDFView/Open
 Current Page Visits: 840 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 593296 since 06-Feb-2009  Last updated on 18-Sep-2014Webmaster: nopr@niscair.res.in