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| Study on Automatic Desilverization from Low Silver-Bearing Bismuth Molten by Adding Zinc |
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Received:May 16, 2013
Revised:May 17, 2013
Accepted:May 20, 2013
Published Online:October 25, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.11.004 |
| KeyWord:desilverization; low silver-bearing bismuth molten; zinc; silver |
| Author | Institution |
| GUO Wei-zhong |
中南大学 化学化工学院 |
| QIU Ke-qiang |
中南大学 化学化工学院 |
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| Abstract: |
| The silver in low silver-bearing bismuth molten was removed by being passed through zinc liquid column. The effects of height of zinc liquid column, temperature and time on desilverization were studied. The results show that the silver mass content in bismuth molten reduces from 0.06% to 10 μg/g with the removal rate of silver of 98.01% and from 0.18% to 33 μg/g with the removal rate of silver of 93.45% under the conditions including height of zinc liquid column of 12 cm, temperature of 500 ℃ and time of 120 min. The processes have the advantages of low consumption, low labor strength and environment friendliness. |
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