【摘要】 采用浸渍法制备了酸碱双功能催化剂 ,经过高温焙烧和气流粉碎得到超细粒子催化剂。结果表明 ,该超细催化剂对于由CO2 直接合成碳酸二甲酯的反应具有优良的催化活性 ,选择性和收率都要优于常规催化剂 ;结合反应精馏设备 ,可以将碳酸二甲酯的收率由 4 0 %提高至 70 %。更多还原

【Abstract】 Bifunctional catalyst was prepared by wet impregnation, after high temperature calcination and airstream comminution treatment, Superbase ultrafine catalyst was obtained. The results show that ultrafine catalyst has excellent catalysis activity to direct synthesis of DMC from CO 2, and selectivity and yield of DMC are better than common catalyst. The yield of DMC was more than 70% connected with reaction distillation.更多还原