SYNTHESIS OF ETHYLENE CARBONATE FROM ETHYLENE OXIDE AND CO2 IN THE PRESENCE OF ZINC PHENOLATES / IONIC LIQUID CATALYSTS

The synthesis of cyclic carbonates by the cycloaddition reaction CO2 with epoxy compounds is one most promising directions in utilization CO2. present work studies ethylene carbonate oxide carbon dioxide presence zinc-phenolate catalysts formula ZnY (where, Y – methylene-bis, thio-bis and dithio-bis alkyl phenols), ionic liquids RLX R H atom or C1 –C8 groups; L cations [NMP]+, [MIM]+, [Py]+ amine; X anions Br–, НСОО–, СН3СОО–), binary Zn-phenolate/ionic liquid, using selected optimal zinc phenolate liquid catalysts, synthesized R2L2X2ZnY. In these conversion 32.0–99.0%, selectivity for 81.0–100.0%, catalyst productivity 210.0–1501.0 g EC/g Cat, TOF 891.0–12000.0 mol EC/mol Cat·h. Organic have a fairly large market (about 1.8 million tons/year) are widely used as solvents, selective reagents, intermediates (for pharmaceuticals agricultural preparates), fuel additives, well monomers polymer