Leaching of Zinc from EAF dust by sulfuric acid

Su Ji Parti; Injoon Son; Ho Sang Sohn

doi:10.3365/KJMM.2015.53.11.793

Leaching of Zinc from EAF dust by sulfuric acid

Su Ji Parti, Injoon Son, Ho Sang Sohn

Kyungpook National University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	793-800
Number of pages	8
Journal	Journal of Korean Institute of Metals and Materials
Volume	53
Issue number	11
DOIs	https://doi.org/10.3365/KJMM.2015.53.11.793
State	Published - 2015

Keywords

Eaf dust
Hydrometallurgy
Kinetic
Leaching
Sulfuric acid
Zinc

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10.3365/KJMM.2015.53.11.793

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title = "Leaching of Zinc from EAF dust by sulfuric acid",

abstract = "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.",

keywords = "Eaf dust, Hydrometallurgy, Kinetic, Leaching, Sulfuric acid, Zinc",

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AU - Parti, Su Ji

AU - Son, Injoon

AU - Sohn, Ho Sang

PY - 2015

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N2 - 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.

AB - 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.

KW - Eaf dust

KW - Hydrometallurgy

KW - Kinetic

KW - Leaching

KW - Sulfuric acid

KW - Zinc

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JO - Journal of Korean Institute of Metals and Materials

JF - Journal of Korean Institute of Metals and Materials

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Leaching of Zinc from EAF dust by sulfuric acid

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