Synthesis of dimethyl carbonate in supercritical carbon dioxide

Brazilian Journal of Chemical Engineering

D. Ballivet-tkatchenko¹  R. A. Ligabue¹  L. Plasseraud¹ 

[1] ,Université de Bourgogne-UFR Sciences et Techniques Laboratoire de Synthèse et Electrosynthèse Organométalliques Dijon,France

关键词: Dimethyl carbonate;    Supercritical carbon dioxide;    Tin(IV) compounds;   

DOI  :  10.1590/S0104-66322006000100012

来源: SciELO

【 摘 要 】

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.

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