Synthesis of dimethyl carbonate in supercritical carbon dioxide
Open Access
- 1 March 2006
- journal article
- Published by FapUNIFESP (SciELO) in Brazilian Journal of Chemical Engineering
- Vol. 23 (1), 111-116
- https://doi.org/10.1590/s0104-66322006000100012
Abstract
The reactivity of carbon dioxide with methanol to form dimethyl carbonate was studied in the presence of the n-butylmethoxytin compounds n-Bu3SnOCH3, n-Bu2Sn(OCH3)2 , and [n-Bu2(CH3O)Sn]2 O. The reaction occurred under solventless conditions at 423 K and was produced by an increase in CO2 pressure. This beneficial effect is primarily attributed to phase behavior. The mass transfer under liquid-vapor biphasic conditions was not limiting when the system reached the supercritical state for a CO2 pressure higher than 16 MPa. Under these conditions, CO2 acted as a reactant and a solvent.Keywords
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