Utilização de processos mecânicos e eletroquímicos para reciclagem de cobre de sucatas eletrônicas

摘要: The constant growth in the generation of solid residues world stimulates studies for most types residual recycling. In this work Printed Circuit Boards, that are part electronic scraps and found electro-electronic equipment, were studied. Boards composed polymers, ceramics metals, making their processing difficult. During first stage work, mechanical processes, such as comminution, sizing, magnetic electrostatic separation used to obtain two concentrated fractions”one with metals (mainly Cu) other polymers ceramics. second stage, metal-concentrated fraction was dissolved acids treated an electrochemical process separate metals. results there more than a 50% copper content conductive fractions also, significant Pb Sn. This demonstrated technical feasibility recovery using followed by electrometallurgical technique. solution decayed quickly all experiments obtained electrowinning above 97% tests.