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Article

Title

Removal of Zn(II) and Mn(II) by Ion Flotation from Aqueous Solutions Derived from Zn-C and Zn-Mn(II) Batteries Leaching

Authors

[ 1 ] Instytut Zarządzania, Wydział Zarządzania i Dowodzenia, Akademia Sztuki Wojennej | [ P ] employee

Scientific discipline (Law 2.0)

[5.3] Safety studies

Year of publication

2021

Published in

Energies

Journal year: 2021 | Journal volume: vol. 14 | Journal number: issue 5

Article type

scholarly article

Publication language

english

Keywords
PL
  • Bezpieczeństwo ekologiczne
  • Flotacja
  • Technologia chemiczna
  • Odzysk
  • Mangan (pierwiastek)
  • Cynk
EN
  • Ecological safety
  • Ion flotation
  • Recovery
  • Waste batteries
  • Mn(II)
  • Zn(II)
Abstract

EN The Zn(II) and Mn(II) removal by an ion flotation process from model and real dilute aqueous solutions derived from waste batteries was studied in this work. The research aimed to determine optimal conditions for the removal of Zn(II) and Mn(II) from aqueous solutions after acidic leaching of Zn-C and Zn-Mn waste batteries. The ion flotation process was carried out at ambient temperature and atmospheric pressure. Two organic compounds used as collectors were applied, i.e., m-dodecylphosphoric acid 32 and m-tetradecylphosphoric 33 acid in the presence of a non-ionic foaming agent (Triton X-100, 29). It was found that both compounds can be used as collectors in the ion flotation for Zn(II) and Mn(II) removal process. Process parameters for Zn(II) and Mn(II) flotation have been established for collective or selective removal metals, e.g., good selectivity coefficients equal to 29.2 for Zn(II) over Mn(II) was achieved for a 10 min process using collector 32 in the presence of foaming agent 29 at pH = 9.0.

Pages (from - to)

1335 (nr art.)

DOI

https://doi.org/10.3390/en14051335

URL

https://www.mdpi.com/1996-1073/14/5/1335

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

moment of the publication

Points of MNiSW / journal

140

Impact Factor

2.702 [List 2019]