Zinc Recovery from Flue Dust

Authors

  • Petr DVOŘÁK Author
  • Hong N. VU Author

DOI:

https://doi.org/10.29227/IM-2017-01-31

Keywords:

zinc recovery, flue dust, steelmaking

Abstract

Flue dust from processing of steelmaking dust in cupola furnace was processed hydrometallurgically in order to recover zinc. The flue dust contained 17.8% Zn, 8.14% Si, 4.20% Fe, 2.34% Pb and minor elements. Leaching of the dust in H2SO4 enabled achieving almost 100% Zn extraction. Iron was removed from the leach liquors by means of hydrolytic precipitation up to pH = 4.5. Zinc electrowinning was used to obtain metallic zinc of high purity from purified solutions. As an alternative process of winning zinc from the leach liquors, precipitation of basic zinc carbonate was investigated.

Author Biographies

  • Petr DVOŘÁK

    Ing., Ph.D.; Department of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic; email: dvorakp@vscht.cz

  • Hong N. VU

    Ing., Ph.D.; Department of Metallic Materials and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic; email: vun@vscht.cz

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Published

2025-10-12

Issue

Vol. 1 No. 1 (2017): Inżynieria Mineralna

Section

Articles

License

Copyright (c) 2025 Petr DVOŘÁK, Hong N. VU (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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