Electrowinning of antimony from model sulphide alkaline solutions
Yazarlar (2)
Åke Sandström
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Hydrometallurgy (Q1) | ||
| Makale Dili | – | Basım Tarihi | 05-2013 |
| Cilt / Sayı / Sayfa | 137 / 0 / 60–67 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0304386X13001047 | ||
| UAK Araştırma Alanları |
Dedektör Teknolojisi
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| Özet |
| The influence of initial antimony concentration, cathode current density, concentrations of Na2S and NaOH, gas sparging and electrolyte temperature on average cell voltage, specific energy and current efficiency of antimony deposition has been studied. The experiments were conducted in a nondiaphragm electrolytic cell. The anode and cathode were made in such a way that the anode current density was ten times higher than the cathode current density so that a vigorous production of oxygen is promoted at the anode with lesser amounts of polysulphide; and concurrently decreasing the propensity of producing hydrogen at the cathode. Increasing the initial concentration of antimony from 25 g/L to 45 g/L increased the current efficiency by 18%. The average cell voltage decreased from 2.78 V to 2.21 V when the electrolyte temperature was raised from 45 °C to 90 °C. The results showed that increasing the … |
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