磷钨酸镧催化合成香料乙酸正丙酯  

Synthesis of perfume N-propyl acetate by catalysis of LaPW_(12)O_(40)

作　　者：胡震[1] 

机构地区：[1]四川理工学院材料与化学工程学院,四川自贡643000

出　　处：《中国酿造》2011年第3期111-112,共2页China Brewing

摘　　要：冰醋酸和正内醇在磷钨酸镧的催化作用下,合成香料乙酸正内酯。考察了反应温度、冰醋酸与正丙醇的摩尔比、催化剂用量及反应时间对酯收率的影响。结果表明,用磷钨酸镧催化合成乙酸正丙酯的最佳工艺条件为反应温度为100℃,冰醋酸与正丙醇的摩尔比为1.2:1.0,催化剂的质量为2.5g,反应时间为2.5h。在最佳反应条件下,酯收率为78%。N-propyl acetate was a kind of synthetic perfume which was synthesized by N-propanol alcohol and glacial acetic acid with the catalysis of LaPW12O40. The effects of reaction temperature, molar ratio of N-propanol alcohol to glacial acetic acid, the dosage of catalyst and reaction time on yield of N-propyl acetate were investigated. The optimum conditions of synthesizing propyl acetate were obtained as follows： reaction temperature 100℃, the molar ratio of N-propanol alcohol to glacial acetic acid 1.2：1.0, catalyst 2.5g and reaction time 2.5h. Under these optimum conditions, the yield of N-propyl acetate reached 78%.

关 键 词：磷钨酸镧 催化 合成 乙酸丙酯:酯收率 

分 类 号：TQ655[化学工程—精细化工]