Microwave Roasting Characteristics of Cuprous Chloride Residue from Zinc Hydrometallurgy

High-efficiency dechlorination processes are crucial for the clean utilization of CuCl waste residue from zinc hydrometallurgical processes. A new method oxygen-enriched microwave roasting has been proposed to improve process. The cavity perturbation was used in this paper measure permittivity a at various temperatures and apparent densities. results show that temperature had more significant effect on loss tangent when it exceeded 400 °C than degree 93% after 90 min 450 150 mL/min oxygen flow, which 12% higher conventional calcination. elemental distribution samples studied using single-point, linear, lateral scans microscale, microstructure phase changes under field were characterized by XRD SEM-EDS. This study shows microwaves can promote reaction decreasing activation energy 52.69 kJ/mol 42.36 kJ/mol.