VAPOR-PHASE BECKMANN REARRANGEMENT OF CYCLOHEXANONE OXIME OVER MEL TYPE ZEOLITES

被引：43

作者：

REDDY, JS

RAVISHANKAR, R

SIVASANKER, S

RATNASAMY, P

机构：

[1] Catalysis Division, National Chemical Laboratory, Pune

来源：

CATALYSIS LETTERS | 1993年 / 17卷 / 1-2期

关键词：

BECKMANN REARRANGEMENT; CYCLOHEXANONE OXIME; EPSILON-CAPROLACTAM; TITANIUM SILICATE; TS-2; SILICALITE-2; MEL;

D O I：

10.1007/BF00763935

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 vapour phase Beckmann rearrangement of cyclohexanone oxime to epsilon-caprolactam is reported over different MEL zeolites viz., silicalite-2, titanium silicate-2 (TS-2), ZSM-11 and alumino-titanium-silicate (Al-TS-2) and fumed silica. TS-2 exhibits 100% conversions with lactam selectivities close to 90%. The titanium containing analogs are also more resistant to deactivation than the parent zeolites. The conversion of cyclohexanone oxime and selectivity for epsilon-caprolactam increase with temperature. The selectivity for epsilon-caprolactam increases with the duration of run at all the temperatures.

引用

页码：139 / 140

页数：2

共 20 条

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