Development of a Sustainable Metallurgical Process to Valorize Copper Smelting Wastes with Olive Stones-Based Biochar

Flue dust waste coming from a copper (Cu) smelting company has been valorized using newly developed metallurgical process with the aim of recovering concentrated in valuable metals, such as lead (Pb) and zinc (Zn), studying feasibility replacing anthracite biochar reducing agent. Metallurgical trials different mixtures agents have performed furnace at 1400 °C. This employs high-power thermal plasma (HPTP) system energy source. Using base metal, pellets containing mixture waste, agents, binder were introduced into for their dissolution. Recovery yields range 45–85 wt.% Pb Zn obtained flue dusts. All proved effectiveness to enrich dusts including those only Further will be carried out order better control parameters involved improve its efficiency.