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전기로 제강더스트의 건식제강공정에서 아연, 연, 염소의 거동
이중호,이용학 대한금속재료학회(대한금속학회) 1997 대한금속·재료학회지 Vol.35 No.9
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