OBTENCION DE ISOPULEGOL SOBRE CATALIZADORES DE Ir/Nb2O5/SiO2. APROXIMACION CINETICA

kinetics of citronellal conversion to isopulegol over catalyst was performed in a range of temperature 303 - 343 k, a hydrogen pressure 0.62 - 0.20 mpa and a citronelal concentrations at 0.1m to 0.025 m. the results indicate that the catalyst of iridium supported over sio2-nb2o5 induces selectivity towards isopulegol due to high acidity and the presence of surface metal sites. to avoid mass transfer limitations were used a vigorous agitation and small amounts of catalyst ( 0.05 g). the analysis of rates reaction provided an initial order 1 with respect to concentration and zero order with respect to pressure. results are explained using a model of complex reactions of the first order.