Dimethyl carbonate synthesis by oxidative carbonylation with a new Cu-based complex catalyst

A new type of Cu-based complex catalyst for dimethyl carbonate(DMC) synthesis by oxidative carbonylation of methanol in liquid-phase was reported.The influence factors,such as stir speed,reaction temperature, reaction pressure,reaction time and concentration of catalyst etc.,had been discussed.Results indicated that under the selected reaction conditions(stirring speed above(750r/min),temperature of 100～110 ℃,pressure of(3.5MPa),reaction time of 4～6 hours,catalyst concentration of(0.15g/mL) MeOH),the conversion of methanol could reach 24% and the selectivity of DMC exceed 97%,and the catalyst could be recycled.