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

습식산화법을 이용한 제강분진 내 아연회수에 관한 연구

  • 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)
  • 문대헌 (경기대학교 환경에너지공학과) ;
  • 정재훈 (경기대학교 환경에너지공학과) ;
  • 장순웅 (경기대학교 환경에너지공학과)
  • Received : 2015.12.22
  • Accepted : 2016.02.11
  • Published : 2016.02.29


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.


Zinc recovery;EAFD;Hydrometallurgical recovery;Electrowinning


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