Mo/P-SiO_2催化合成丙酮酸乙酯的研究  

Synthesis of ethyl pyruvate utilizing Mo/P-SiO_2 as catalyst

作　　者：冷一欣[1] 单凯[1] 韶晖[1] 黄春香[1] 袁野[1] 

机构地区：[1]常州大学石油化工学院江苏省绿色催化材料与技术重点实验室,江苏常州213164

出　　处：《现代化工》2015年第1期76-79,共4页Modern Chemical Industry

摘　　要：用浸渍法制备Mo/P-Si O2固体酸催化剂,用X射线衍射、红外光谱、NH3程序升温脱附等方法对催化剂进行表征。结果表明,催化剂具有较好的稳定性和酸性,活性组分能较好的分布于载体Si O2上。在催化合成丙酮酸乙酯的反应中具有较高的活性。当n(Mo)∶n(P)=2∶1,焙烧温度为450℃时,催化剂活性较好。当反应温度为25℃,反应时间为4 h,催化剂的质量分数为3.6%时,丙酮酸乙酯收率达72%。Solid acid catalyst Mo/P-SiO2 is prepared by impregnation method. XRD, FTIR and NH3-TPD are used to characterize the obtained Mo/P-SiO2 catalyst. The results indicate that the catalyst has good stability and acidity. The active component can be better distributed onto the SiO2 carrier. This Mo/P-SiO2 catalyst has higher catalytic reactivity when it is used in the synthesis of ethyl pyruvate under the following conditions ：2：1 molar ratio of Mo/P and 450℃ of calcined temperature. When the reaction temperature, reaction time and the amount of catalyst are 50℃, 4 hours and 3.6%, the yield of ethyl pyruvate is up to 72%.

关 键 词：固体酸催化剂 浸渍法 催化氧化 丙酮酸乙酯 

分 类 号：TQ426.8[化学工程]