A Study on the Recovery of Zinc and Pig Iron from Byproducts after Steelmaking Dust Treatment

• Autorzy: Wang Jei-Pl

Identyfikatory

DOI

10.24425/amm.2023.141495

• Języki publikacji: EN

Abstrakty

EN

In this study, a research was conducted to recover metallic zinc and pig iron and to improve the purity and the recovery rate through a reduction process for zinc and iron in the byproducts that are generated after steelmaking dust treatment. As the result of the calcination, it was confirmed that Cl (6.06%) and K (3.37%) decreased to Cl (2.75%) and K (0.22%), respectively. For the zinc powder that was recovered with reaction temperature of 1100°C, reaction time of 4 hours, and argon gas of 1L/min as the optimal conditions. The measurement for the purity of zinc was 99.8% and the recovery rate was 92.14%. The melt reduction for recovering pig iron from the residue was reacted under reaction temperature of 1600°C, flux composition (CaO:SiO₂) of 1:1, and reducing agent infusion ratio (residue: C) of 14:1, and the pig iron was measured to have a purity of 87.7% and a recovery rate of 91.81%.

Słowa kluczowe

EN

steelmaking dust; reduction; recovery; zinc; pig iron

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2023
• Tom: Vol. 68, iss. 1
• Strony: 205--208
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr., wzory

Twórcy

autor

Wang Jei-Pl

• Pukyong National University, Department of Metallurgical Engineering, Department of Marine Convergence Design Engineering (Advanced Materials Engineering), Busan 48513, Korea

• https://orcid.org/0000-0002-8314-4098

Bibliografia

• [1] Chihyun Yoon, Reduction process technology research for the recovery crude ZnO from the EAF-dust, The Korean inst. Of Resources Recycling 23 (1), 58-63 (2014).
• [2] Korea Iron&Steel Association, 2020 Production of steel.
• [3] M. Omran, T. Fabritius, Utilization of blast furnace sludge for the removal of zinc from steelmaking dusts using microwave heating, Sep. Purif. Technol. 210, 867-884 (2019).
• [4] P. Oustadakis, P.E. Tsakiridis, A. Katsiapi, S. Agatzini-Leonardou, Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD) Part I: characterization and leaching by diluted sulphuric acid, J. Hazard. Mater. 179, 1-7 (2010).
• [5] M. Omran, T. Fabritius, Effect of steelmaking dust characteristics on suitable recycling process determining: ferrochrome converter (CRC) and electric arc furnace (EAF) dusts, Powder Technol. 308, 47-60 (2017).
• [6] J .Vereš, M. Lovás, Š. Jakabský, V. Šepelák, S. Hredzák, Characterization of blast furnace sludge and removal of zinc by microwave assisted extraction, Hydrometallurgy 129-130, 67-73 (2012).
• [7] M. Omran, T. Fabritius, E-P. Heikkinen, Selective zinc removal from electric arc furnace (EAF) dust by using microwave heating, J. Sustain. Metall. 5, 331-340 (2019).

Uwagi

1. This work supported by the Ministry of Trade, Industry & Energy (MOTIE, Korea) under Industrial Technology Innovation Program (No. 20016885).

2. Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).