TS-1分子筛催化苯乙酮氨肟化反应
章永洁[1,2] 王亚权[2] 刘腾飞[2] 米镇涛[2] 吴魏[3] 闵恩泽[3] 齐涛[1]
[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,北京100080 [2]天津大学化工学院绿色合成与转化教育部重点实验室,天津300072 [3]北京石油化工科学研究院,北京100083
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H202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%(ω)曲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.[著者文摘]
文章出处:
《过程工程学报》-2006年6卷6期 -922-925页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1009-606X(2006)06-0922-04
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. Key Lab. Green Process Eng., Inst. Process Eng., CAS, Belting 100080, China; 2. Key Lab. Green Chem. TechnoL, Sch. Chem. Eng. & TechnoL, Tianjin Univ., Tianfin 300072, China; 3. Res. lnst. Petroleum Processing, Beijing 100083, China)
Abstract:
The ammoximation of acetophenone to aeetophenone oxime with 28%(ω) 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 aeetophenone on the reaction wore 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 aeotophenone and H2O2 to acetophenone should be kept above 2.00 and 1.27, respectively.[著者文摘]
Key words:
TS-1; acetophenone; ammoximation; acetophenone oxime; hydrogen peroxide; catalysis
基金资助:
国家重点基础研究发展规划(973)基金资助项目(编号:2000048005)

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