Silver production from spent zinc-silver oxide batteries via leaching-cementation technique

Silver production from spent zinc-silver oxide batteries via leaching-cementation technique

Silver recovery from a spent submarine battery was investigated. The effect of different parameters including nitric acid concentration, temperature, solid to liquid ratio (w/v%) and time was studied and results revealed that recovery increased by increasing acid concentration, temperature (up to 55...

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Bibliographic Details
Published in:Separation science and technology Vol. 56; no. 11; pp. 1956 - 1964
Main Authors: Javanshir, Sepideh, Saei Qashoqchi, Safar, Heidari Mofrad, Zahra
Format: Journal Article
Language:English
Published: Abingdon Taylor & Francis 24-07-2021
Taylor & Francis Ltd
Subjects:
Batteries
Cementation
Copper
copper powder
Leaching
Nitric acid
Nitric acids
Recovery
Silver
silver leaching
Silver oxides
Temperature
Zinc
Zinc-silver oxide battery
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Summary:Silver recovery from a spent submarine battery was investigated. The effect of different parameters including nitric acid concentration, temperature, solid to liquid ratio (w/v%) and time was studied and results revealed that recovery increased by increasing acid concentration, temperature (up to 55°C) and solid to liquid ratio (up to 40 g/L). Recovery of silver could reach 99.99% under optimum conditions and the activation energy was found to be 22.84 KJ/mol. Moreover, the effect of Cu/Ag ratio (w %), time, pH and temperature on the precipitation of silver from PLS was studied by surface response methodology (RSM).
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2020.1797800