Synthesis of dimethyl carbonate in supercritical carbon dioxide

AUTOR(ES)

Ballivet-Tkatchenko, D., Ligabue, R. A., Plasseraud, L.

FONTE

Brazilian Journal of Chemical Engineering

DATA DE PUBLICAÇÃO

2006-03

RESUMO

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.

Documentos Relacionados

• Supercritical Carbon Dioxide Effect on Lipase-Catalyzed Geranyl Acetate Synthesis
• Desorption of toluene from modified clays using supercritical carbon dioxide
• Extraction of bixin from annatto seeds using supercritical carbon dioxide
• Supercritical carbon dioxide extraction of methylxanthines from maté tea leaves
• Bacterial inactivation by using near- and supercritical carbon dioxide