摘要
针对甲醇液相氧化羰基化法合成碳酸二甲酯（DMC）工艺，研究开发了新型铜络合催化剂，对搅拌速度、反应温度、反应压力、反应时间、催化剂浓度等影响因素进行了讨论。结果表明，在搅拌速度大于750 r／min、反应压力3．5 MPa、反应温度100—110℃、反应时间4—6 h，催化剂质量浓度在每毫升MeOH为0．15 g的条件下，生成DMC的选择性大于97％，甲醇的转化率可达24％，催化剂可回收使用。
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 underthe selected reaction conditions （stirring speed above 750 r/min, temperature of 100 -110℃, pressure of3.5 MPa, reaction time of 4 -6 hours, catalyst concentration of 0. 15 g/mL MeOH）, the conversion of methanolcould reach 24% and the selectivity of DMC exceed 97% , and the catalyst could be recycled.
出处
《南京工业大学学报（自然科学版）》
CAS
2006年第1期75-79,共5页
Journal of Nanjing Tech University(Natural Science Edition)
关键词
碳酸二甲酯
合成
甲醇羰基化
铜基催化剂
液相
dimethyl carbonate
synthesis
methanol
carbonylation
catalyst
liquid phase
