A Study of the Effects on Dissolution Constants and Activation Energy in a Stirred Tank

Monday, November 17, 2008: 4:55 PM
Franklin 5 (Marriott Philadelphia Downtown)

Gustavo Adolfo Orozco, Department of Chemical Engineering, Universidad de los Andes, Bogotá, Colombia
Fabio Enrique Fajardo, Physics, Universidad Nacional de Colombia, Bogota, Colombia
Clara Tatiana González, Physics, Universidad Nacional de Colombia, Bogota, Colombia

It is studied the effects of the agitation velocity and three different geometries of agitators on the dissolution constant and the activation energy of solids with spherical geometry in a particular solvent. Subsequently, the temperature was varied in order to determine the effect of the two variables studied. It was found that the dissolution constants follows the Hixson-Crowell model and also that the activation energy is a function of the agitator's velocity and the agitator's geometry.
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