N-ethylation of aniline with ethanol or diethyl carbonate over alkali and alkaline zeolites Y and beta

Authors
Yuvaraj, S Balasubramanian, VV Palanichamy, S
Citation
S. Yuvaraj et al., N-ethylation of aniline with ethanol or diethyl carbonate over alkali and alkaline zeolites Y and beta, APP CATAL A, 176(1), 1999, pp. 111-117
Citations number
27
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
APPLIED CATALYSIS A-GENERAL
ISSN journal
0926860X → ACNP
Volume
176
Issue
1
Year of publication
1999
Pages
111 - 117
Database
ISI
SICI code
0926-860X(19990111)176:1<111:NOAWEO>2.0.ZU;2-S
Abstract
Vapour phase ethylation of aniline was carried out over alkali and alkaline earth exchanged zeolites Y and beta. Reaction conditions were optimised fo r N-alkylation by varying reaction parameters like temperature, WHSV, mole ratio and time on stream. Over all zeolites, N-alkylation is much higher th an C-alkylation. Diethyl carbonate is a better N-alkylating agent than etha nol. Among the catalysts studied, K beta is a good N-monoalkylating catalys t with 41% aniline conversion and 100% selectivity at 473 K, WHSV 19.8 h(-1 ) and diethyl carbonate/aniline ratio 2. (C) 1999 Elsevier Science B.V All rights reserved.