A systematic review of sustainable gold extraction from raw ores using alternative leaching reagents

Drawing on recent experimental and commercial developments, this review reappraises potential substitute leach reagents for cyanide in the gold mining sector. In addition to extraction, the application of these reagents in the gold processing, pre-treatment and gold purification stages is explored....

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Published inThe extractive industries and society Vol. 9; p. 101018
Main Authors Sousa, Rui, Regufe, Maria João, Fiúza, António, Leite, Mário Machado, Futuro, Aurora
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2022
Subjects
Alternative leaching reagents
Cyanidation
Gold hydrometallurgy
Sustainable Mineral Processing
Gold hydrometallurgy
Sustainable Mineral Processing
Cyanidation
Alternative leaching reagents
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Summary:Drawing on recent experimental and commercial developments, this review reappraises potential substitute leach reagents for cyanide in the gold mining sector. In addition to extraction, the application of these reagents in the gold processing, pre-treatment and gold purification stages is explored. The main objective here is to discuss how the gold extraction process can be more sustainable, with a view to developing more greener leaching reagents.
ISSN:2214-790X
DOI:10.1016/j.exis.2021.101018