Síntesis y Caracterización de Zeolitas Mel y Fau Dopadas con Metales de Transición para su Aplicación a la Química Fina bajo Irradiación Microondas

Abstract

The aim of this work is to obtain zeolites doped with transition metals for their application to the synthesis of chemical compounds under microwave.
Microporous zeolites were modified with transition metals. Their crystal structures were verified by XRD. Their specific surfaces were determined by the BET method. The dielectric properties of compacted zeolites were measured using a reflection method. The temperature profiles of these compacted beds were determined under microwave irradiation. Heating phenomena in zeolites were interpreted using a modified Debye model. Lewis and Brönsted acid sites were quantified, and so their acid strength by FTIR of zeolites, after adsorption and desorption of pyridine. Finally, we evaluated the catalytic activity of zeolites in the partial oxidation of styrene, in a batch system, under classical and dielectric heating.