INVESTIGADORES
DE MIGUEL sergio Ruben
artículos
Título:
Study of the poisoning of -Al2O3 by alkali metals addition
Autor/es:
GILBERTO GARCÍA CORTEZ; SERGIO R. DE MIGUEL; OSVALDO A. SCELZA; ALBERTO A. CASTRO
Revista:
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
Editorial:
SCI
Referencias:
Año: 1992 vol. 53 p. 177 - 180
ISSN:
0268-2575
Resumen:
The effect of alkali metal addition to alumina on the acid characteristics and on the isopropanol dehydration capacity was analyzed. It was found that the incidence on the catalytic and acid properties of the alkali metal doped alumina depended on the ionic radii of the added element. Thus, K produces a higher poisoning of the acid function than Na and Li. Catalytic results can be interpreted in terms of a modification of the acid sites distribution by the alkali metal addition, the stronger acid sites being mainly affected.
