Reator batelada: construção de um modelo em escala laboratorial e obtenção dos parâmetros cinéticos e de Arrhenius em reações de fase líquida

Abstract

This work aims to design and build a batch reactor with controlled temperature and agitation and its mathematical validation based on obtaining the kinetic parameters of saponification reactions between ethyl acetate and sodium hydroxide under different conditions. Reactions were performed with excess sodium hydroxide and reactions with excess ethyl acetate in different conditions so that in this way the differential method was used to obtain the reaction orders and later the integrate method for its validation. Important results were obtained regarding the influence of the ionic dissociation of water and the hydroxide ion in concentrations close to the order of 10-7M in the reactions which water is the solvent of the reagents. In addition, reaction orders very close to the literature were also obtained. From these results we can conclude that in all practical work there may be data obtained that lead us to new findings that were not expected initially. The precision and efficiency of the built reactor was also validated.