Aniline alkylation with ethanol over zeolites and vanadium modified zeolites prepared by solid state exchange method

被引：19
|
作者：
Narayanan, S [1 ]
Sultana, A [1 ]
机构：
[1] Indian Inst Chem Technol, Catalysis Sect, Hyderabad 500007, Andhra Pradesh, India
来源：
APPLIED CATALYSIS A-GENERAL | 1998年 / 167卷 / 01期
关键词：
aniline alkylation; zeolite; V2O5; solid state ion exchange; acidity by STPD of ammonia; mechanism of alkylation;
D O I：
10.1016/S0926-860X(97)00304-9
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：
Vapour phase aniline alkylation was carried out over HX, HY, HZSM-5, H-mordenite and over zeolites solid state ion-exchanged with vanadium. Calcination of V2O5-zeolite mixture in nitrogen reduced V2O5 to VO2+ ion and these species migrated into the cationic positions in the zeolite channels. Three-dimensional and mildly acidic zeolites (ZSM-5, Y and X) showed higher catalytic activities for aniline alkylation than did unidimensional and strongly acidic mordenite. Addition of vanadia enhanced the alkylation activity of all the four zeolites studied. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：103 / 111
页数：9
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