Valorization of zinc from the eaf dust using the hydrometallurgical process
Date
2024
Authors
Trifunović, Vanja
Milić, Snežana
Avramović, Ljiljana
Božić, Dragana
Journal Title
Journal ISSN
Volume Title
Publisher
Mining and Metallurgy Institute Bor
Source
Proceedings - 55th International October Conference on Mining and Metallurgy - IOC 2024, 15 – 17 October 2024, Kladovo, Serbia, 2024, 257-262.
Volume
Issue
Abstract
Since the dust from the electric arc furnace (EAF dust) contains a high percentage of zinc in its composition, it can be used as a secondary raw material for zinc valorization. After characterization the original sample of the EAF dust, it was treated using the hydrometallurgical process. After the applied hydrometallurgical treatment of the EAF dust, a pregnant leaching solution, rich in zinc and other impurities, was obtained. To valorize zinc, and obtain the commercial quality ZnSO4·H2O product, the impurities were removed by purification the pregnant leaching solution through the processes of neutralization and cementation. From the purified pregnant leaching solution, using the evaporation and crystallization processes, a product was obtained and its characteristics are in accordance with the characteristics of the ZnSO4·H2O product on the market. The fact that ZnSO4·H2O is the only crystalline phase in the obtained zinc product, it was confirmed by the XRD analysis.
Description
Keywords
EAF dust, treatment, zinc valorization
Citation
DOI
10.5937/IOC24257T
Scopus
ISSN
ISBN
978-86-7827-053-6
License
CC-BY-NC-ND