Browse > Article

Purification on the Leaching Solution of the Crude Zinc Oxide Recovered from the Reduction of EAF Dust  

Youn Ki-Byoung (인천대학교 재료공학과)
Publication Information
Resources Recycling / v.13, no.1, 2004 , pp. 22-27 More about this Journal
Abstract
Purification on the leaching solution of the crude zinc oxide obtained by the reduction of EAF dust has been carried out. Pb and Cd ions in the leaching solution were precipitated and removed from the solution by the addition of zinc metal powder. The purification condition for electrowinning to obtain the high purity zinc metal was investigated by analyzing the effects of Pb and Cd ion concentrations on the contents of impurities in the recovered zinc metal. The 3 N purity zinc metal was obtained at the electrolysis condition of the concentrations of Pb less than 2 ppm and Cd less than 0.1 ppm in the purified solution. For this purification, the amounts of zinc metal powder more than 8.5 g/l should be added in the crude zinc oxide leached solution.
Keywords
Reduction of EAF Dust; Crude Zine Oxide; $NH_4CI$ Leaching; Purification on the leaching solution;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Ann, M. Hagni, Richard D. Hagni, and Christelle Demans, 1991: 'Mineralogical Characteristics of Electric Arc Furnace Dust', Review of Extrac.tive Metallurgy, April, pp. 28-30
2 Herlitz, H.G., 1982: 'The Plasma Dust Process for Recovery of Metals from Waste Oxides', Resources and Conservation, 9, pp. 191-198   DOI
3 alper, M. and Maccagni, M. 2000: 'Electrolytic Zinc Production from Crude Zinc Oxide with the EZINEX Process', Proc. of 4th Inter. Sym. on Recycling of Metals and Engineered Materials, pp. 379-396. Pittsburgh, Penn. USA, 22-25 Oct. 2000, Printed in USA
4 Page, D.G. Heanley, C.P. and Cowx, P.M., 1984: 'The Extraction of Non-ferrous Metal with the Tetromics Plasma System, with Particular Emphasis on Zn and Ph', MINTEX 50 Int. Conf. on Mineral Sci. and Tech., 2, pp. 817-825
5 Hidetoshi Tanaka, et aI., 2000: Verification of FASTMET Process Application to Dust Recycling. IS1J Int. 40 (supplement) pp. 1-36
6 Youn, K.B., 2001: 'Ammonium Chloride Solution Leaching of the Crude Zinc Oxide Volatilized from EAF Dust', The 6th Int. Sym. on East Asian Resources Recycling Tech. Proc. pp. 365-369
7 Helmut Maczek and Rolf Kola, 1980: 'Recovering of Zinc and Lead from Electric-Furnace Steelmaking Dust at Berzelius', JOM, January, pp. 53-58