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| Technical Study on Oxygen Enrichment Bath Smelting for Stibnite |
| Received:December 03, 2018 Revised:December 04, 2018 |
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| DOI：doi：10.3969/j.issn.1007-7545.2019.03.001 |
| KeyWord:stibnite; volatilization; bath smelting; high-temperature dilution |
| Author | Institution |
| ZHANG Jia-liang |
北京科技大学冶金与生态工程学院 |
| YANG Xu |
北京科技大学冶金与生态工程学院 |
| DENG Wei-hua |
锡矿山闪星锑业有限责任公司 |
| CHEN Yong-qiang |
北京科技大学冶金与生态工程学院 |
| WANG Cheng-yan |
北京科技大学冶金与生态工程学院 |
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| Abstract: |
| Volatilization behavior of stibnite was simulated by an experimental equipment of oxygen enrichment top blowing. Effects of oxygen factor, Fe/SiO2 and CaO content in initial slag on Sb content in smelting slag were studied. The results show that Sb content in smelting slag is 1.8% under the optimum conditions of oxygen factor of 1.04, Fe/SiO2=0.94, and CaO of 15%. Phase and distribution of Sb in slag were analyzed with SEM-EDS. Sb exists as micro elemental particles in the slag. Sb content in slag reduces from 2.36% to 0.86% after depletion at high temperature by adding some antimony matte as collecting agent. Stibnite can be treated by the process of oxygen enrichment bath smelting and high-temperature depletion. |
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