The results obtained with the hydrometallurgical process show recovery rates for gold, tin, silver, lead and copper and purity grade up to
99%. The experiments carried out on personal computers plastic fraction (including PCBs and external cases) allow to conclude that pyrolysis appears to succeed to treat a heterogeneous plastics charge made up of engineered polymers, converting it into an enriched hydrocarbons mixture with yields around 95
% w/w, to be exploited as a fuel, or as possible source of chemicals after an adequate further refining treatment. The process developed for personal computers plastic components can be extended to other small household appliances that have similar plastic composition