Recovery of copper through concentration processes from ashes produced by WEEE pyrolysis

The process of recovering metals from electronic waste has become an important topic in recent years. In this work, the recovery electrolytic copper ashes produced during pyrolysis electrical and equipment (WEEE) was sought. Three gravimetric separation were used: Wilfley table, JIG screen, mechanical screen. This last method used with without previous grinding processes. initially characterized by XRD to determine phases present. initial concentration carried out physicochemical classification. results obtained show that sieve processes best performance, reaching a percentage about 87% metal present within WEEE 16 minutes. application vertical system on material samples fairly wide density difference allowed optimal for metallic ash. On other hand, screens obtains values much lower than those sieve.