DOI QR코드

DOI QR Code

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

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

References

  1. Banza, A. N., Gock, E., Kongolo, K., 2002, Base metals recovery from copper smelter slag by oxidizing leaching and solvent extraction, Hydrometallurgy, 67, 63-69. https://doi.org/10.1016/S0304-386X(02)00138-X
  2. Cole, P. M., Sole, K. C., 2003, Zinc solvent extraction in the process industries, Mineral Processing & Extractive Metallurgy Review, 24(2), 91-37. https://doi.org/10.1080/08827500306897
  3. Gurmen, S., Emre, M., 2003, A laboratory-scale investi -gation of alkaline zinc electrowinning, Minerals Engineering, 16(6), 559-562. https://doi.org/10.1016/S0892-6875(03)00081-5
  4. Hong, X. L., Zujin, S., Nanqiang, L., Zhennan, G., Qiankun, Z., 2001, Investigation of the electrochemical and electrocatalytic behavior of single-wall carbon nanotube film on a glassy carbon electrode, Analytical Chemistry, 73(5), 915-920. https://doi.org/10.1021/ac000967l
  5. Janaina, G. M. S. M., Feliciane, A. B., Carlos, A. M. M., Carlos, A. D. S., Antonio, C. F. V., Joao, B. M. C., 2006, Chemical, physical, structural and morphological characterization of the electric arc furnace dust, Journal of Hazardous Meterials, 136, 953-960. https://doi.org/10.1016/j.jhazmat.2006.01.044
  6. Oustadakis, P., Tsakiridis, P. E., Katsiapi, A., Agatzini, L. S., 2010, Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD), Part I: characterization and leaching by diluted sulphuric acid, Journal of Hazardous Materials, 179, 1-7. https://doi.org/10.1016/j.jhazmat.2010.01.059
  7. Pletcher, D., 2009, A first course in electrode processes, Royal Society of Chemistry.
  8. Recendiz, A., Gonzalez, I., Nava, J. L., 2007, Current efficiency studies of the zinc electrowinning process on aluminum rotating cylinder electrode (RCE) in sulfuric acid medium: Influence of different additives, Electrochimica Acta, 52(24), 6880-6887. https://doi.org/10.1016/j.electacta.2007.04.112
  9. Shin, D. H., 2012, A study on the generation of oxidants and its application by electrolysis, Master Dissertation, Inje University.
  10. Suetens, T., Klaasen, B., Acker, K. V., Blanpain, B., 2014, Comparison of electric arc furnace dust treatment technologies using energy efficiency, Journal of Cleaner Production, 65, 152-167. https://doi.org/10.1016/j.jclepro.2013.09.053
  11. Tahir, S., Alenka, R. M., Stefica, C. S., Vjera, N. R., Monika, J., 2004 : Characterization of steel mill electricarc furnace dust, Journal of Hazardous Materials, 109, 59-70. https://doi.org/10.1016/j.jhazmat.2004.02.032
  12. Trung, Z. H., Kukurugya, F., Takacova, Z., Orac, M., Laubertova, D., 2011, Acidic leaching both of zinc and iron from basic oxygen furnace sludge, Journal of Hazardous Materials, 192(3), 1100-1107. https://doi.org/10.1016/j.jhazmat.2011.06.016
  13. Walsh, F. C., 1992, Electrochemical cell reaction in metal finishing, Transactions of the institute of metal finishing, 69(3), 107-110.
  14. Yan, J. L., Li, Y. C., Hui, L., Xiao, B. M., Qaisar, M., Hai, J. Z., Yong, K., 2012, Hydrothermal sulfidation of zinc-containing neutralization sludge for zinc recovery and stabilization, Minerals Engineering, 25, 14-19. https://doi.org/10.1016/j.mineng.2011.09.014