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https://hdl.handle.net/20.500.13091/5403
Title: | Solvent Extraction of Manganese and Zinc from Chloride Leach Solution of Spent Zn–C Batteries with DEHPA in Benzene Diluent | Authors: | Abdelraheem, M.T.O. Aras, A. Taner, H.A. Agacayak, T. |
Keywords: | DEHPA Extraction efficiency Manganese Solvent extraction Zinc Zn–C batteries Chlorine compounds Efficiency Electric batteries Leaching Manganese compounds Solvents Chloride leach Di(2-ethylhexyl)phosphoric acid Di-2-ethylhexyl phosphoric acids Extraction efficiencies Leach solutions Leachates Solvent-extraction process Zinc Zinc-carbon battery Zinc–C battery Solvent extraction |
Publisher: | Springer Science and Business Media Deutschland GmbH | Abstract: | The applicability of utilizing solvent extraction processes of manganese (Mn) and zinc (Zn) from chloride leachate of spent zinc–carbon (Zn–C) batteries has been studied by using di-2-ethylhexyl phosphoric acid (DEHPA) as an extractant agent. The effect of five factors (equilibrium pH, O/A ratio, temperature, extractant concentration, and diluent type) were investigated. According to the results gained, the appropriate solution pH level for DEHPA was found to be 6.5. With DEHPA (20%, v/v), 77.50% Mn and 100% Zn were extracted, within 15 min contact time at a 1:1 aqueous/organic ratio and 50 °C temperature. Also, a McCabe–Thiele diagram was drawn and one single-step extraction for Zn and a two-stage process for Mn were needed to achieve the highest extraction efficiency. ΔH as a thermodynamic parameter was calculated and found to be 18.39 kJ/mol for Mn and − 245.50 kJ/mol for Zn, respectively, indicating that the extraction process was endothermic for Mn and exothermic for Zn. A desirable stripping of Mn and Zn from the loaded organic phase could be obtained using a stripping solution of 6 M HCl. Graphical Abstract: (Figure presented.) © The Author(s) 2024. | URI: | https://doi.org/10.1007/s40831-024-00810-9 https://hdl.handle.net/20.500.13091/5403 |
ISSN: | 2199-3823 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections |
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