合成苹果酯的催化剂研究

Study on the Catalytic Synthesis of Fructone

本文综述了铌酸、硫酸铝、无水AlCl3 、FeCl3 、CuCl2 、ZnCl2 、SnCl4/C、酸性树脂、固载型三氯化铁离子交换树脂、三氯化铁漆酚树脂的复合物、柠檬酸、1%饱和脂肪酸、固体超强酸SO2 -4/ZrO2 、SO2 -4/TiO2 、PO2 -4/TiO2 、SO2 -4/TiO2 /La3 + 和SO2 -4/Fe2 O3 、磷钼酸、固载杂多酸、TiSiW12 O40 /TiO2 以及WN - 1等二十余种不同催化剂催化合成苹果酯的实验结果。结果表明 :硫酸铝、酸性树脂、三氯化铁漆酚树酯、纳米级固体超强酸SO2 -4/TiO2 和活性炭固载的杂多酸 (HPA /C)五种催化剂对合成苹果酯的酯收率较高 ,具有实际应用价值。

In the presence of catalyst of noibic acid,Al 2(SO 4) 3,AlCl 3,FeCl 3,CuCl 2,ZnCl 2,SnCl 4/C,acidic resin,ion exchange resin-supported FeCl 3,urushiol resin-supported FeCl 3,citric acid,1% saturated fatty acid,solid super-acid SO 2- 4/ZrO 2,SO 2- 4/TiO 2,PO 3- 4/TiO 2,SO 2- 4/TiO 2/La 3+ ,SO 2- 4/Fe 2O 3,H 3PMo 12 O 40 ,active carbon supported he^teropoly acids,TiSiW 12 O 40 /TiO 2 and WN-1,fructone has been synthesized by the esterification of ethyl acetoacetate with ethylene glycol.The optimum amount of catalyst and water carrying agent,reaction time,ratio between ester and alcohol were studied. It showes that Al 2(SO 4) 3,acidic resin,urushiol resin-supported FeCl 3,solid super-acid SO 2- 4/TiO 2 and active carbon supported heteropoly acids are excellent catalysts for the synthesis of fructone