ROLE OF SURFACE COMPLEXES ON TITANIUM-SILICATE IN THE AMMOXIMATION OF CYCLOHEXANONE WITH HYDROGEN-PEROXIDE

被引:37
作者
TVARUZKOVA, Z [1 ]
HABERSBERGER, K [1 ]
ZILKOVA, N [1 ]
JIRU, P [1 ]
机构
[1] J HEYROVSKY INST PHYS CHEM & ELECTROCHEM, DOLEJSKOVA 3, CS-18223 PRAGUE 8, CZECHOSLOVAKIA
来源
APPLIED CATALYSIS | 1991年 / 79卷 / 01期
关键词
AMMOXIMATION; CYCLOHEXANONE; CYCLOHEXANONE OXIME; INFRARED SPECTROSCOPY; TITANIUM-SILICALITE;
D O I
10.1016/0926-860X(91)85009-M
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The mechanism of the catalytic ammoximation of cyclohexanone to its oxime with H2O2 over a Ti-silicalite catalysts was suggested on the basis of the analysis of the IR spectra of complexes of ammonia and cyclohexanone adsorbed on the catalyst. It was shown that on the surface of Ti-silicalite cyclohexylimine is formed as precursor which may be then in the following step oxidized to cyclohexanone/oxime by the action of the peroxydic bond on titanium formed after the treatment of Ti-silicalite with H2O2.
引用
收藏
页码:105 / 114
页数:10
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