Beckmann rearrangement of cyclohexanone oxime to ε-caprolactam using mesoporous molecular sieves ALSBA-15

被引：16

作者：

Chang, JC ^{[1
]}

Ko, AN ^{[1
]}

机构：

[1] Tunghai Univ, Dept Chem, Taichung 40704, Taiwan

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2004年 / 83卷 / 02期

关键词：

AISBA-15; beckmann rearrangement; epsilon-caprolactam; cyclohexanone oxime;

D O I：

10.1023/B:REAC.0000046088.31033.7c

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：

Vapor-phase synthesis of c-caprolactam (e-C) from cyclohexanone oxime (CHO) has been studied at 300-400degreesC and atmospheric pressure using AISBA-15(X) catalysts with different Si/Al mol ratios X in a fixed-bed, integral-flow reactor. The catalysts were characterized with ICP-AES, XRD, TEM, N-2 adsorption, Al-27 and Si-29 MAS-NMR, FT-IR and TPD of ammonia. A decrease of X value in AISBA-15(X) diminishes both the BET surface area and the unit cell length but enhances the acid amount. The catalytic activity correlates with the catalyst acidity. AISBA-15(10) exhibits excellent catalytic performance.

引用

页码：283 / 290

页数：8

共 15 条

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