CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
EFFECT OF THE PREPARATION METHOD ON THE PROPERTIES OF HEMATITE-BASED CATALYSTS WITH LANTHANUM FOR STYRENE PRODUCTION.
Autor/es:
M. S. SANTOS, S.G. MARCHETTI, A. ALBORNOZ, M. DO CARMO RANGEL.
Revista:
STUDIES IN SURFACE SCIENCE AND CATALYSIS
Editorial:
Elsevier
Referencias:
Año: 2010 vol. 175 p. 819 - 822
ISSN:
0167-2991
Resumen:
Abstract
The influence
of the preparation method on the properties of lanthanum-doped hematite prepared with potassium carbonate was studied
aiming to get catalysts for styrene production from ethylbenzene
dehydrogenation. The most active catalyst was obtained by adding the reactants
on water. This solid has the highest intrinsic activity, the highest resistance
against reduction and the lowest conversion drop. These properties were related
to the presence of potassium compounds on the surface and to the presence of Fe+3
species (active phase) stabilized in lanthanum oxide lattice.