Tungsten-Titanium pillared clay catalyst: Preparation, characterization and catalytic activity
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Keywords

Tungsten; Titanium; pillared clay; sulfate; n-hexane isomerisation.

How to Cite

Boudali, L. (2014). Tungsten-Titanium pillared clay catalyst: Preparation, characterization and catalytic activity. Jordan Journal of Chemistry (JJC), 9(2), 97-109. Retrieved from http://jjc.yu.edu.jo/index.php/jjc/article/view/153

Abstract

Tungsten-Titanium pillared clay and sulfated-Titanium pillared clay catalysts were
prepared and characterized by different techniques: X-ray diffraction, BET surface area - pore
volume measurements, chemical analysis, thermogravimetric and differential thermal analysis,
temperature programmed reduction by hydrogen then studied for n-hexane isomerisation
reaction. The simultaneous addition of both tungsten and titanium solutions to the clay
suspension induces an increase of the basal spacing leading to a well defined structure of the
WTi-pillared clay. Better micro porosity but lower specific surface areas at high temperature
were observed on WTi-pillared clay compared to Ti-pillared clays prepared in presence or
absence of sulfate. All the investigated materials are active in the n-hexane isomerisation
reaction. Furthermore the WTi-pillared clay catalyst displays the highest selectivity towards
mono-ramified isomers products.

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