발간논문

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Vol.35, No.9, 1190 ~ 1195, 1997
Title
The Behaviors of Zinc , Lead and Chlorine in the Pyrometallurgical Process for electric Arc Furnace Steel Dust
이용학 , 이중호 Yong Hack Lee , 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
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