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| Removal of Fluorine and Chlorine from High Lead-bearing Zinc Oxide Dust with Sodium Carbonate Wash |
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Received:August 01, 2014
Revised:August 06, 2014
Accepted:August 07, 2014
Published Online:December 24, 2014
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| DOI：10.3969/j.issn.1007-7545.2015.01.004 |
| KeyWord:zinc oxide dust; alkaline cleaning; defluorination; dechloridation |
| Author | Institution |
| SUN Hong-yan |
红河学院理学院 |
| KONG Xin |
红河学院理学院 |
| SEN Wei |
云南锡业股份有限公司 |
| YI Zhong-zhou |
红河学院理学院 |
| LIU Gui-yang |
红河学院理学院 |
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| Abstract: |
| Fluorine and chlorine were removed from zinc oxide dust by alkaline cleaning with sodium carbonate and mixture of sodium carbonate and sodium hydroxide respectively. The results show that fluorine and chlorine removal rates are 31.11% and 29.05% respectively under the optimum conditions including ratio of liquid to solid of 6∶1, washing time of 50 min, temperature of 60 ℃, and dosage of alkaline mixture of 9% with ratio of sodium carbonate and sodium hydroxide of 1∶1. |
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