Formation of sulphur oxyanions and their influence on antimony electrowinning from sulphide electrolytes
Yazarlar (3)
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Minerals Engineering (Q1) | ||
| Makale Dili | – | Basım Tarihi | 11-2013 |
| Cilt / Sayı / Sayfa | 53 / 0 / 39–47 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0892687513002197 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| Antimony electrowinning from synthetic alkaline sulphide electrolytes has been studied in a nondiaphragm electrolytic cell. The electrodes were constructed in such a way that the anode produces ten times higher current density than the cathodic current density to promote sulphide oxidation to sulphate at the anode; and simultaneously decreasing the tendency of hydrogen evolution at the cathode. The result revealed that at an anodic current density lower than 1500 A/m2, minute amounts of sulphate ions were formed but when the anode current density increased beyond 1500 A/m2, sulphate formation was promoted. The initial molar concentration ratio between hydroxide and free sulphide ions should be ⩾10.3 to avoid thiosulphate formation at 2000 A/m2 anodic current density under the conditions used in these experiments. The highest anodic current efficiency obtained based on the amount of sulphate … |
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