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| Study on Cobalt Removal with Antimony Trioxide in Zinc Hydrometallurgy |
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Received:February 17, 2013
Revised:March 29, 2013
Accepted:March 29, 2013
Published Online:August 22, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.09.002 |
| KeyWord:zinc hydrometallurgy; antimony trioxide; cobalt removal; purification |
| Author | Institution |
| Jiang Yan |
红河学院 理学院 |
| xie gang |
云南冶金集团股份有限公司技术中心 |
| Xiao Rui-min |
红河学院 理学院 |
| Li Zi-jing |
红河学院 理学院 |
| Sun Li-da |
红河学院 理学院 |
| Huang Du-shu |
红河学院 理学院 |
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| Abstract: |
| Cobalt in zinc sulfate solution from zinc hydrometallurgy was purified with antimony trioxide. The effects of dosage of zinc powder and antimony trioxide, particle size of zinc powder, stirring rate, temperature, and time on cobalt removal were examined. The results show that good cobalt removal effect can be achieved with fine-grained zinc powder by strong mixing and purification requirements can be met in appropriate temperature and time. The optimum conditions for cobalt removal include dosage of Sb2O3 of 3 mg/L, dosage of zinc powder of 2 g/L, zinc powder particle size of 0.074~0.050 mm, stirring rate of 300 r/min, temperature of 85 ℃ and time of 90 min. |
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