| Title |
The Behaviors of Zinc , Lead and Chlorine in the Pyrometallurgical Process for electric Arc Furnace Steel Dust |
| Authors |
이용학(Yong Hack Lee) ; 이중호(Jung Ho Lee) |
| Abstract |
This study investigated the behaviors of zinc, lead and chlorine in EAF dust for recovery of iron and zinc in the oxidation and reduction atmosphere respectively between 800 and 1300℃. The removal of chlorine was easy under oxidation atmosphere rather than reduction atmosphere, and proper temperature was 1100℃. The volatilization rate of Pb was decreased over 1000℃ under oxidation atmosphere because of formation of PbO-SiO₂ melt. The volatilization of zinc was rapidly increased between 900℃ and 1000℃ under reduction atmosphere. The residual content of zinc could be presented over 1100℃ as following equation. log(%Zn)=logM_(Zn)+logn_r+log(P_(CO₂),/P_(CO))+logP_(Zn)- log_γ_(ZnO)+96456.42/T-4.5683 |