Indium Recovery from Jarosite Pb–Ag Tailings Waste (Part 1)
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Date
2023
Authors
Janošević, Miloš
Conić, Vesna
Božić, Dragana
Avramović, Ljiljana
Jovanović, Ivana
Kamberović, Željko
Marjanović, Saša
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI, Switzerland
Source
Minerals
Volume
13
Issue
4
Abstract
The processing of zinc ore using hydrometallurgical methods leads to the formation and accumulation of a by-product called jarosite, which contains concentrated precious metals. In this study, we propose the recovery of In and its separation from Cu, Zn, Fe, Pb, and Ag. This study also presents a proposal for a new technological procedure for jarosite treatment. First we roasted the jarosite, and then the calcine collected was leached in water. The leaching extraction values obtained for Cu, Zn, Fe, and In were 91.07%, 91.97%, 9.60%, and 100.0%, respectively. Following the leaching of the roasted material in water, Pb, Ag, and most of the Fe obtained remained in the solid residue. The leaching solution was treated further by a precipitation process using NaOH, where In and Fe were precipitated and consequently separated from Cu and Zn. The In (OH)3 and Fe(OH)3 precipitates were dissolved further in a diluted H2SO4 solution, and then the cementation of In with Al was performed. We used HCl acid to remove Al from the In, after which unwrought In was obtained.
Description
Keywords
hydrometallurgy, jarosite treatment, roasting, water dissolution (water leaching), precipitation, indium recovery
Citation
DOI
10.3390/min13040540
Scopus
ISSN
2075-163X
ISBN
License
CC-BY