Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Leaching of Zinc from EAF Dust by Sulfuric Acid

황산용액에 의한 전기로 제강분진으로부터 Zn의 침출

  • Park, Su-Ji (School of Materials Science and Engineering Kyungpook National University) ;
  • Son, Injoon (School of Materials Science and Engineering Kyungpook National University) ;
  • Sohn, Ho-Sang (School of Materials Science and Engineering Kyungpook National University)
  • 박수지 (경북대학교 신소재공학부) ;
  • 손인준 (경북대학교 신소재공학부) ;
  • 손호상 (경북대학교 신소재공학부)
  • Received : 2014.12.24
  • Published : 2015.11.05
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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

Acknowledgement

Supported by : 환경부

References

  1. A. G. Guezennec, J. C. Huber, F. Patisson, P. Sessiecq, J. P. Birat, and D. Ablitzer, Powder Technology 157, 2 (2005). https://doi.org/10.1016/j.powtec.2005.05.006
  2. T. Havlik, M. Turzakova, S. Stopic, and B. Friedrich, Acta Metallurgica Slovaca 10, 96 (2004)
  3. J. Y. Hyun, and D. S. Cho, J. of Korean Inst. of Resources Recycling 7, 13 (1998).
  4. N. I. Moon, D. K. Choi, and Y. H. Lee, J. of Korean Inst. of Resources Recycling 1(1), 37 (1992).
  5. T. Nakamura, E. Shibata, T. Takasu and H. Itou, Resources Processing 55, 144 (2008). https://doi.org/10.4144/rpsj.55.144
  6. T. Havlik, B. Friedrich, S. Stopic, ERZMETALL 57, 113 (2004).
  7. J. C. Lee, K. I. Rhee and Y. S. Yu, J. of Korean Inst. of Resources Recycling 1(1), 58 (1992).
  8. A. R. E. Hollagh, E. K. Alamdari, D. Moradkhani, and A. A. Salardini, Inter. J. Nonferrous Metallurgy 2, 10 (2013). https://doi.org/10.4236/ijnm.2013.21002
  9. Y. Takashi, Metall. Trans. 44, 2489 (2003).
  10. I.S. Oh and c.J. Kim, J. of Korean Inst. of Resources Recycling 12, 30 (2003).
  11. C. Nunez and J. Vinals, Metall. Trans. B 15B, 221 (1984).
  12. F. Elgersma, G.F. Kamst, G.J. Witkamp and G.M. van Rosmalen, Hydrometallurgy 29, 173 (1992). https://doi.org/10.1016/0304-386X(92)90012-O