p-Cymene preparation over modified montmorillonite clays

被引：15

作者：

Binitha, N. N. ^{[1
]}

Sugunan, S. ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Appl Chem, Cochin 682022, Kerala, India

来源：

CATALYSIS COMMUNICATIONS | 2007年 / 8卷 / 11期

关键词：

D O I：

10.1016/j.catcom.2007.02.010

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：

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. Si-29 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. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1793 / 1797

页数：5

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