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Alkylene Carbonates Synthesis by the Reaction of Carbon Dioxide and Ethylene Oxide in the Presence of Zink Phenolates |
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PP: 19-25 |
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Author(s) |
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Emin Nasirli,
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Abstract |
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| The cycloaddition reaction of carbon dioxide (CO2) and ethylene oxide (EO) for the synthesis of ethylene carbonate (EC) was successfully conducted in a high-pressure reactor in the presence of synthesized thio-bis-alkyl phenolate- Zn catalysts in methylene chloride solvent, without using any co-catalysts. The optimum reaction condition was found at: [Cat]= 1.0∙10-3 mol/l; [EO]= 3.0 mol/l; PCO2= 6.0 MPa; T= 120oC; τ= 2.0 h and 350 rpm stirring speed in the presence of 2,2`-thio-bis-6-ethylaminomethyl-4-tert-octyl phenolate-Zn (TB-6-EAM-4-OPh-Zn) catalyst. In these conditions EO conversion, yield and selectivity of EC, catalyst productivity and TOF were 96.0%, 99,0%, 95.0%, 372.1g of EC/g Cat. and 1424.5mol EC/mol Cat.•h, respectively. |
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