Cu-Zn binary component salts for catalyzed liquid-phase oxidative carbonylation of methanol to dimethyl carbonate

Catalysts with highly active Cu-Zn binary component salts were developed and used in the oxidative carbonylation of methanol to dimethyl carbonate(DMC).Reaction conditions of the system were investigated by orthogonal experiments and central composite design with Statistica analysis.Under optimal reaction conditions of temperature 363-373K,pressure 2.8MPa,concentration of catalyst in methanol 0.20-0.30g/mL and reaction time 4-6h,the conversion of methanol and the selectivity to DMC could reach 53.5% and 93.0%,respectively.