Electrochemical evaluation of manganese reducers - recovery of Mn from Zn-Mn and Zn-C battery waste
PBN-AR
Instytucja
Wydział Chemiczny (Politechnika Wrocławska)
Informacje podstawowe
Główny język publikacji
eng
Czasopismo
JOURNAL OF POWER SOURCES
ISSN
0378-7753
EISSN
Wydawca
DOI
URL
Rok publikacji
2014
Numer zeszytu
Strony od-do
668-674
Numer tomu
vol. 270
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 3)
Pozostali autorzy
+ 2
Słowa kluczowe
pol
zużyta bateria
recykling
redukcyjne ługowanie
mangan
Streszczenia
Język
eng
Treść
Extraction of manganese from ores or battery waste involves the use of reductive reagents for transformation of MnO2 to Mn2+ ions. There are many reducers, both organic and inorganic, described in the literature. A series of 18 reducers has been discussed in the paper and they were classified according to standard redox potential (pE = -log ae- where pE is used to express formal electron activity and ae- is formal electron activity). The experiments of manganese extraction from paramagnetic fraction of Zn–C and Zn–Mn battery waste in the laboratory scale have been described for 3 reducers of different origin. The best result was achieved with oxalic acid (75%, with the lowest redox potential) and urea (with typical redox potential) appeared inactive. Extraction supported by hydrogen peroxide resulted in moderate yield (50%). It shows that formal thermodynamic scale is only preliminary information useful for selection of possible reducers for manganese extraction resources.
Inne
System-identifier
000194291
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