Bioleaching of a complex sulphide ore with moderate thermophilic and extreme thermophilic microorganisms
Yazarlar (2)
Åke Sandström
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Hydrometallurgy (Q2) | ||
| Makale Dili | – | Basım Tarihi | 08-1997 |
| Cilt / Sayı / Sayfa | 46 / 1 / 181–190 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0304386X97000121 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| Biooxidation of a fine-grained, complex zinc and gold-containing sulphide ore has been performed in a series of experiments at bench scale with 201 leaching volume in a series of three continuously stirred reactors. A mixed culture of moderate thermophilic bacteria was used for bioleaching at 45°C and a mixed culture of extreme thermophilic archea were used for bioleaching at 65°C. The leaching yields for zinc were in the range 80–87% with the moderate thermophilic bacteria and 96–98% with the extremely thermophilic microorganisms. It was found that, to obtain a high zinc recovery with a low degree of pyrite oxidation, a fine particle size was essential. Changes in retention time did not influence zinc solubilisation to any greater extent. Due to a high limestone content in the ore, the bioleaching was acid consuming. The acid consumption was strongly dependent on the throughput of ore in the leaching system … |
| Anahtar Kelimeler |
