황산용액에 의한 전기로 제강분진으로부터 Zn의 침출

The sulfuric acid leaching of electric arc furnace(EAF) dust was studied in an attempt to find a suitable hydrometallurgical method for the recovery of zinc. The effect of acid concentration, reaction temperature, stirring rate and solid-to-liquid ratio on Zn and Fe extraction from the solution was...

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Published in대한금속·재료학회지, 53(11) Vol. 53; no. 11; pp. 793 - 800
Main Authors 박수지, Su Ji Park, 손인준, In Joon Son, 손호상, Ho Sang Sohn
Format Journal Article
LanguageKorean
Published 대한금속재료학회 05.11.2015
대한금속·재료학회
Subjects
EAF dust
hydrometallurgy
kinetic
leaching
sulfuric acid
zinc
재료공학
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ISSN1738-8228
2288-8241
DOI10.3365/KJMM.2015.53.11.793

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Summary:The sulfuric acid leaching of electric arc furnace(EAF) dust was studied in an attempt to find a suitable hydrometallurgical method for the recovery of zinc. The effect of acid concentration, reaction temperature, stirring rate and solid-to-liquid ratio on Zn and Fe extraction from the solution was investigated. It was found that the leaching rate of Zn and Fe increased with increasing reaction temperature and sulfuric-acid concentration. Examination of data using a shrinking core model suggest that the leaching rate is controlled by mixture kinetics. The activation energy for the leaching reaction of Zn and Fe were calculated as 44.45 kJ/mol and 65.45 kJ/mol, respectively.
Bibliography:The Korean Institute of Metals and Materials
G704-000085.2015.53.11.006
ISSN:1738-8228
2288-8241
DOI:10.3365/KJMM.2015.53.11.793