@ARTICLE{Rudnik_E._Recovery_2020,
 author={Rudnik, E.},
 volume={vol. 65},
 number={No 2},
 journal={Archives of Metallurgy and Materials},
 pages={601-608},
 howpublished={online},
 year={2020},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={Industrial steelmaking (EAF) flue dust was characterized in terms of chemical and phase compositions, leaching behaviour in 20% sulphuric acid solution as well as leaching thermal effect. Waste product contained about 43% Zn, 27% Fe, 19% O, about 3% Pb and Mn and lesser amounts of other elements (Ca, Si, Mo, etc.). It consisted mainly of oxide-type compounds of iron and zinc. Dissolution of metals (Zn, Fe, Mn) from the dust was determined in a dependence of solid to liquid ratio (50-200 g/L), temperature (20-80oC) and leaching time (up to 120 min). The best result of 60% zinc recovery was obtained for 50 g dust/L and a temperature of 80oC. Leaching of the material was an exothermic process with a reaction heat of about –318 kJ/kg. Precipitation purification of the solution was realized using various ratios of H2O2 to NH3aq. A product of this stage was hydrated iron(III) oxide. Final solution was used for zinc electrowinning. Despite that pure zinc was obtained the highest cathodic current efficiency was only 40%.},
 type={Article},
 title={Recovery of Zinc from Steelmaking Flue Dust by Hydrometallurgical Route},
 URL={http://journals.pan.pl/Content/116035/PDF/AMM-2020-2-12-Rudnik.pdf},
 doi={10.24425/amm.2020.132798},
 keywords={EAF dust, leaching, electrowinning, recycling},
}