Formation of N-methylaniline by transalkylation of aniline with N,N-dimethylaniline over zeolite Beta

被引：4

作者：

Bandyopadhyay, R ^{[1
]}

Singh, PS ^{[1
]}

Rao, BS ^{[1
]}

机构：

[1] NATL CHEM LAB,CATALYSIS DIV,PUNE 411008,MAHARASHTRA,INDIA

来源：

APPLIED CATALYSIS A-GENERAL | 1997年 / 155卷 / 01期

关键词：

transalkylation; H-beta; H-Y; H-ZSM-12; N-methylaniline; alkali cation;

D O I：

10.1016/S0926-860X(96)00380-8

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 transalkylation of aniline (A) with N,N-dimethylaniline (NNDMA) over zeolite H-Beta is described. The reaction yields N-methylaniline (NMA) as the major product with other products such as toluidine (T), N-methyltoluidine (NMT) and N,N-dimethyltoluidine (NNDMT). Conversion of NNDMA and selectivity of different products depend on reaction parameters like temperature, feed ratio, space velocity, etc. The catalytic activity of H-Beta is compared with Cs and K exchanged Beta and other two large pore zeolites H-ZSM-12 and H-Y. H-Beta shows better performance compared to the other zeolites in terms of activity, stability and selectivity. Alkali cation exchange in H-Beta results in better selectivity towards NMA with less conversion and faster deactivation.

引用

页码：27 / 39

页数：13

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