Silver production from spent zinc-silver oxide batteries via leaching-cementation technique
- 24 July 2021
- journal article
- research article
- Published by Informa UK Limited in Separation Science and Technology
- Vol. 56 (11), 1956-1964
- https://doi.org/10.1080/01496395.2020.1797800
Abstract
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 degrees 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).Keywords
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