负载Cu-Mn催化剂催化甲醇与乙醇一步合成异丁醛

Synthesis of Isobutylaldehyde from Methanol and Ethanol over CuO-MnO/Al_2O_3 and CuO-MnO/SiO_2 Catalysts

分别使用 Cu O- Mn O/Al2 O3 和 Cu O- Mn O/Si O2 催化剂 ,甲醇与乙醇在常压和 2 50、30 0和350℃条件下一步合成异丁醛 .研究了 Cu O- Mn O/Al2 O3 和 Cu O- Mn O/Si O2 两个体系催化剂的组成和反应条件等因素对催化剂催化性能的影响 .结果表明 ,催化剂中 Cu O含量对催化剂的催化活性影响较大 ,而 Mn O含量则主要影响催化剂对异丁醛的选择性 .

Isobutylaldehyde was synthesized from methanol and ethanol over CuO MnO/Al 2O 3 and CuO MnO/SiO 2 catalysts at ambient pressure and temperature range of 250℃ to 350℃.The comparative method was applied to investigate the chemical composition and the preparation conditions of catalysts.It was found that the catalytic activity and selectivity of the catalysts strongly are dependent on CuO content while MnO might play an important role in the formation of isobutylaldehyde.