Potential of Metal Recovery from Coal Combustion Products. Part II. Leaching of Selected Elements

Authors

  • Dariusz BRADŁO Author
  • Witold ŻUKOWSKI Author
  • Piotr CZUPRYŃSKI Author
  • Karol WITKOWSKI Author

DOI:

https://doi.org/10.29227/IM-2015-01-23

Keywords:

coal combustion products, acidic and basic leaching, rare earth elements, heavy metals, fly ash, slag, slurry from wet flue gas desulphurization

Abstract

The paper presents leaching results of coal combustion products: fly ashes from the three stages of dust collecting system, slag and slurry from wet flue gas desulphurization. The static leaching method was used at room temperature, at a pH value of 1, 4, 7, 10 and 13 for 10 days. H 2 SO 4 and NaOH were added as extraction media and L/S ratio was set to the value of 10. The highest recovery ratio was attained during leaching at a pH value of 1 for fly ash from the third stage of dust collecting system and slurry.

Author Biographies

  • Dariusz BRADŁO

    Ing., Ph.D.; Cracow University of Technology, Faculty of Chemical Engineering and Technology, Warszawska 24, 31-155 Krakow, Poland; email: dbradlo@chemia.pk.edu.pl

  • Witold ŻUKOWSKI

    Dr hab. Ing. Prof.; Cracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Krakow, Poland; email: witold.zukowski@pk.edu.pl

  • Piotr CZUPRYŃSKI

    EDF Polska CUW Ltd; R&D Department, Ciepłownicza 1, 31-587 Krakow, Poland

  • Karol WITKOWSKI

    EDF Polska CUW Ltd; R&D Department, Ciepłownicza 1, 31-587 Krakow, Poland

Downloads

Published

2015-06-02

Issue

Vol. 1 No. 1 (2015): Inżynieria Mineralna

Section

Articles

License

Copyright (c) 2015 Dariusz BRADŁO, Witold ŻUKOWSKI, Piotr CZUPRYŃSKI, Karol WITKOWSKI (Author)

Creative Commons License

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

Most read articles by the same author(s)