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p-Cymene preparation over modified montmorillonite clays

Paper ID Volume ID Publish Year Pages File Format Full-Text
52585 46877 2007 5 PDF Available
Title
p-Cymene preparation over modified montmorillonite clays
Abstract

Toluene isopropylation is carried out over modified montmorillonite clays. Effect of ion exchange and pillaring on the catalytic activity and selectivity is noted. Elemental analysis results give the extent of metal incorporated. Enhanced porosity is evident from X-ray diffraction as well as surface area – pore volume measurements. 29Si NMR shows the resonance for T (3Si, 1Al) units which shifts proportional to the amount of pillar metal present. Among the different modifications mixed metal oxide pillaring is found to be most effective in catalytic activity, p-cymene selectivity and lowering deactivation.

Keywords
Montmorillonite clays; Modifications; Toluene isopropylation; p-Cymene
First Page Preview
p-Cymene preparation over modified montmorillonite clays
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 11, November 2007, Pages 1793–1797
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis