No abstract

This work presents the procedure to improve the aluminum extracted from a hazardous waste from the recycling of aluminum, aluminum that could be used in the production of value-added materials, as well as with the generation of nonhazardous waste. The aluminum waste was treated under reflux and stirring with NaOH aqueous solutions taking into account two concentrations (1 and 2 mol/dm 3 ), various times of extraction (1, 2 and 4 h) and 4 th consecutive steps of extraction in order to obtain solutions with Al 3+ . The activation of the waste by milling is also analyzed. After extraction, the solution is filtered to separate an aqueous solution that contain the extracted Al 3+ and a residual waste. A maximum of 7.54 g/dm 3 of aluminum was extracted in the first step, for a total accumulated of 9,59 g/dm 3 of aluminum. The extracted aluminum can be used to synthesize added-value products applied as adsorbents and catalysts. Finally, the residual waste generated was characterized by N2 adsorption at -196 °C, X-ray diffraction, X-ray fluorescence, energy-dispersive X-ray and scanning electron microscopy in order to apply it as in future works adsorbent or catalyst.

No abstract