ELETRORRECUPERAÇÃO DE COBRE UTILIZANDO REATOR ELETROQUÍMICO DE LEITO DE JORRO

In this work, copper electrowinning using a three-dimensional spouted-bed electrode (SBE) was studied in order to investigate the effects of current density (i), concentration of supporting electrolyte (Cs), pH, electrolyte temperature, and bed thickness on the process current efficiency (EC), energy consumption (CE) and space-time yield (Y). The results indicated that the SBE may be successfully used for the electrowinning of copper when the copper ion concentration is high and the pH is between 1 and 2. In this case, 100% CE, 2.7 kWh kg^-1 EC and 118 kg L^-1 h^{-1 Texto completo}