Alessandra Smaniotto, Angela Antunes
The pyrometallurgic process that the exhausted batteries are submitted for the recovery of metallic lead generates great amount of a by-product called slag. The slag is composed mainly of iron (≈60%) and lead (≈6%), and this residue cannot be disposed in conventional landfill due to the high lead content. This work presents a new methodology for the extraction of lead from slag, based on the complexing effect of EDTA, a chelating ligand that has the ability to solubilize several heavy metals. As the iron (Fe 2+/Fe3+) has a formation’s constant with EDTA higher than the lead and is present in high concentrations in the samples, the fluoride ion (F −) was employed to mask the iron ions. The tests were carried out in a qualitative way, confirming the lead extraction by the formation of a yellow precipitate of lead iodide.
@article{3215e8ee-0e05-4f5b-b971-1c09458a00de,
title={Qualitative lead extraction from recycle},
author={Alessandra Smaniotto and Angela Antunes},
year={2026},
language={en}
}TY - JOUR TI - Qualitative lead extraction from recycle AU - Alessandra Smaniotto AU - Angela Antunes PY - 2026 LA - en ER -
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