Possibilities to use oxidic by-products for precipitation of Fe/As from leaching solutions for subsequent base metal recovery
Yazarlar (4)
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Minerals Engineering (Q2) | ||
| Makale Dili | – | Basım Tarihi | 01-2008 |
| Cilt / Sayı / Sayfa | 21 / 1 / 38–47 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0892687507002038 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| In acidic biological and chemical leaching processes for base metal recovery, iron is dissolved in addition to the desired metal values. Prior to valuable metal extraction iron has to be removed. This is usually achieved through hydroxide precipitation of ferric iron by the addition of lime or limestone to a pH of approximately 3 whereby ferric hydroxide is formed. The aim of this work has been to investigate the possibility to substitute lime or limestone with oxidic industrial by-products for neutralisation and precipitation of iron from leaching solutions. The neutralisation potential for 10 selected oxidic by-products like slags, ashes and dusts were examined and compared with slaked lime. Experiments were performed by decreasing pH to 3 by additions of H2SO4 to slurry of respective by-product at an S/L ratio of 1/10 at 25°C and continued till no changes in pH were observed during 10 days. Original samples, residues … |
| Anahtar Kelimeler |
