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http://dx.doi.org/10.5322/JESI.2016.25.2.331

The Study of Hydrometallurgical Process for Recovery of Zinc from Electric Arc Furnace Dust  

Moon, Dea-Hyun (Department of Environmental Energy Engineering, Kyonggi University)
Jeung, Jae-Hoon (Department of Environmental Energy Engineering, Kyonggi University)
Chang, Soon-Woong (Department of Environmental Energy Engineering, Kyonggi University)
Publication Information
Journal of Environmental Science International / v.25, no.2, 2016 , pp. 331-336 More about this Journal
Abstract
In this study the optimum conditions for recovery of valuable metal in Electric Arc Furnace Dusts were investigated. 2M of $H_2SO_4$, 1~5 of solid/liquid ratio, 0~180 min of leaching time has been established for leaching condition, and for electrowinning, each of Pt, C, Zn, Pb anode and Zn, Cu cathode was compared respectively at pH 2, 4 and 6. The result of elemental analysis of Zn crystal, a lagre quantity of Fe and H has been observed with Zn and other heavy metal, therefore, impurities removing process would be requir for enhancing purity of Zn. As the result, about 60% of Zn has been recovered under condition of 2 M of $H_2SO_4$, 1:2 of S/L ratio at 120 min, and Pt or Pb for anode, Zn for cathode has been shown the highest efficiency of electrowinning at pH 6.
Keywords
Zinc recovery; EAFD; Hydrometallurgical recovery; Electrowinning;
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