Chemical fixation of carbon dioxide to dimethyl carbonate from propylene carbonate and methanol using ionic liquid catalysts

with methanol was investigated by using imidazolium salt ionic liquid catalysts. 1-alkyl-3-methyl imidazolium saltsof different alkyl group (C2, C4, C6, C8) and anions (Cl, Br,BF4, PF6) were used for catalysts. The reaction was carriedout in an autoclave at 140-180oC under carbon dioxide pressure of 1.48-5.61 MPa. The imidazolium salts of shorteras CO2 pressure and reaction temperature increased. Kinetic studies were also performed to better understand the reac-tion mechanism. KCI Citation Count: 22