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| Thermodynamic Behavior of Valuable Components in Antimony Oxide Reduction Smelting Process |
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Received:May 08, 2024
Revised:June 04, 2024
Accepted:June 05, 2024
Published Online:November 17, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.12.003 |
| KeyWord:antimony oxide; pyrometallurgy; reduction smelting; thermodynamic |
| Author | Institution |
| ZHANG Zhongtang |
江西理工大学 |
| LIU Lanjin |
江西理工大学 |
| JIANG Chunsheng |
江西睿达新能源科技有限公司 |
| NIE Huaping |
江西理工大学 |
| WANG Ruixiang |
江西理工大学 |
| XU Zhifeng |
江西应用技术职业学院 |
| MA Baozhong |
北京科技大学 |
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| Abstract: |
| Taking antimony oxide powder as the research objects, the thermodynamic software FactSage was used to calculate the reaction trends of various metal oxides, the dominant region diagram of Me-C-O system, and the phase equilibrium distribution rules in the reduction process. Thermodynamic analysis shows that in a certain temperature range, controlling the partial pressures of CO and O2 can promote the conversion of Sb2O3 to metallic Sb and PbO to metallic Pb. The stable existence regions of metallic Sb and Pb expand gradually with the increase of temperature. The verification test shows that the antimony oxide reduction process can be carried out smoothly under the condition of reduction temperature of 800 ℃ and reduction coal rate of 20%, the alloy grade is greater than 98% and the alloy recovery rate can reach over 90%. |
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