In this study, removal of residue such as, chlorine, lead and cadmium was carried out via pyrometallurgical process by using collected condensed powder (Waelz oxide). In the previous study, Waelz oxide (containing 66.24 wt. % Zn, 0.18 wt. % Fe, 5.55 wt. % Pb, 0.0859 wt. % Cd, and 4.99 wt. % Cl) was collected through carbothermic reduction of EAF dusts at 1100 T for 90 minutes. In the experimental series, a temperature controlled pilot scale rotary furnace was utilized. Temperature (1000, 1100, 1150, and 1200 degrees C) and time (0-120 minutes) were selected as reaction parameters.