6533b7d3fe1ef96bd1260c8b

RESEARCH PRODUCT

Synthesis of dimethyl carbonate in supercritical carbon dioxide

Rosane Angélica LigabueRosane Angélica LigabueLaurent PlasseraudDanielle Ballivet-tkatchenko

subject

General Chemical EngineeringInorganic chemistry[CHIM.INOR]Chemical Sciences/Inorganic chemistry010402 general chemistry01 natural scienceschemistry.chemical_compoundSupercritical carbon dioxidesupercritical carbon dioxide[ CHIM.OTHE ] Chemical Sciences/OtherTin(IV) compoundsdimethyl carbonateReactivity (chemistry)lcsh:Chemical engineeringComputingMilieux_MISCELLANEOUSElectrochemical reduction of carbon dioxideSupercritical water oxidationSupercritical carbon dioxide010405 organic chemistrylcsh:TP155-156[ CHIM.INOR ] Chemical Sciences/Inorganic chemistrySupercritical fluid0104 chemical scienceschemistry13. Climate actionDimethyl carbonateCarbon dioxidetin(IV) compoundsMethanolDimethyl carbonate[CHIM.OTHE]Chemical Sciences/Other

description

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.

https://doi.org/10.1590/s0104-66322006000100012