Obtención de alúmina activada y su aplicación como soporte de catalizador

Abstract

In this work activated alumina was obtained, starting from aluminum recovered of Tetra Pak packages to use as catalyst support. For this end Tetra Pak packages were pyrolized to recovery the aluminum and after this was leached though two ways: Acidic way using hydrochloric acid 10% v/v and basic way using sodium hydroxide 1,5M. The acidic leaching was neutralized using sodium hydroxide 1,5M in acid pH: 5 – 6 and also in basic pH: 8 – 9, and the basic leaching was neutralized using hydrochloric acid 10%v/v in acid pH: 5 – 6 and also in basic pH: 8 – 9, to evaluate the pH influence and four ways of aluminum hydroxide were evaluated. The two best aluminum hydroxides were calcined to 550°C during 4 hours to heat rate of 1°C/min to obtain activated alumina. Using commercial activated alumina, three catalysts support were obtained by impregnation of copper contents of 1%, 5% and 10%, and every catalyst was tested in cyanide removal using hydrogen peroxide as oxidizing agent, this action was realized with the purpose of know the suitable copper content supported in activated alumina. And, using the best copper content in commercial activated alumina, two catalysts support were prepared using activated alumina obtained in this work and every catalyst was evaluated in cyanide removal.