Vapour phase isopropylation of biphenyl over modified molecular sieve catalysts

Authors
Kamalakar, G Prasad, MR Kulkarni, SJ Raghavan, KV
Citation
G. Kamalakar et al., Vapour phase isopropylation of biphenyl over modified molecular sieve catalysts, I J CHEM T, 6(2), 1999, pp. 71-74
Citations number
10
Categorie Soggetti
Chemical Engineering
Journal title
INDIAN JOURNAL OF CHEMICAL TECHNOLOGY
ISSN journal
0971457X → ACNP
Volume
6
Issue
2
Year of publication
1999
Pages
71 - 74
Database
ISI
SICI code
0971-457X(199903)6:2<71:VPIOBO>2.0.ZU;2-#
Abstract
The vapour phase isopropylation of biphenyl was carried over modified Y, SA PO and MCM-41 molecular sieves. The conversions of biphenyl were in the ran ge of 31-77% and the selectivities of dialkylated biphenyl were 35-53%. The effect of various reaction parameters like reaction temperature, weight ho urly space velocity, molar ratio were studied. The dialkylated products wer e more over MCM-41 catalysts and the ratio of Sigma monoalkylated/Sigma dia lkylated in the products varied with the catalyst and time on stream.