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›› 2006, Vol. 6 ›› Issue (6): 922-925.

• 过程与工艺 • 上一篇    下一篇

TS-1分子筛催化苯乙酮氨肟化反应

章永洁,王亚权,刘腾飞,米镇涛,吴魏,闵恩泽,齐涛   

  1. 中国科学院过程工程研究所 绿色过程与工程重点实验室
  • 出版日期:2006-12-20 发布日期:2006-12-20

Ammoximation of Acetophenone Catalyzed by TS-1 Molecular Sieve

ZHANG Yong-jie,WANG Ya-quan,LIU Teng-fei,MI Zhen-tao,WU Wei,MIN En-ze,QI Tao   

  1. (1. Key lab. Green Proc. Eng., Institute of Process Engineering, Chinese Academy of Sciences
  • Online:2006-12-20 Published:2006-12-20

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被引次数

7

摘要： 研究了钛硅分子筛(TS-1)催化苯乙酮氨肟化反应中溶剂、反应温度、助催化剂(氧化铝和乙酸铵)、氨水及H2O2用量对反应的影响. 结果表明，适宜的溶剂为乙醇，最佳反应温度为80℃，助催化剂乙酸铵在溶液中的浓度不低于0.43%(w)时能显著提高苯乙酮氨肟反应的转化率，而Al2O3的作用不明显. 为了获得较高的转化率，物料中NH3/苯乙酮以及H2O2/苯乙酮的摩尔比应分别控制在2.00和1.27以上.

关键词: 钛硅分子筛, 苯乙酮, 氨肟化, 苯乙酮肟, H2O2, 催化

Abstract: The ammoximation of acetophenone to acetophenone oxime with 28%(w) H2O2 over TS-1 molecular sieve catalyst was studied. The influences of various parameters such as solvent, temperature, auxiliary catalyst (alumina and ammonium acetate), molar ratios of NH3 to acetophenone and H2O2 to acetophenone on the reaction were investigated. The results show that the best solvent is ethanol and the optimal reaction temperature 80℃, and ammonium acetate can promote the formation of acetophenone oxime. In order to achieve the high yield, the molar ratios of NH3 to acetophenone and H2O2 to acetophenone should be kept above 2.00 and 1.27, respectively.

Key words: TS-1 molecular sieve, acetophenone, ammoximation, acetophenone oxime, hydrogen peroxide, catalysis