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| Thermodynamic Simulation on Elements Distribution of Lead Concentrate Oxidative Smelting in Oxygen-Rich Bottom-Blow Smelting Process |
| Received:April 24, 2018 Revised:May 02, 2018 |
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| DOI：doi：10.3969/j.issn.1007-7545.2018.09.001 |
| KeyWord:lead; oxygen-rich bottom-blow process; oxidation smelting; element distribution; thermodynamic simulation |
| Author | Institution |
| CHEN Lin |
中南大学 冶金与环境学院;湖南金旺铋业股份有限公司 |
| WANG Zhenhu |
中南大学 冶金与环境学院 |
| CHEN Wei |
中南大学 冶金与环境学院 |
| XIAO Hui |
中南大学 冶金与环境学院 |
| LIU Weifeng |
中南大学 冶金与环境学院 |
| ZHAN Duchao |
中南大学 冶金与环境学院 |
| YANG Tianzu |
中南大学 冶金与环境学院 |
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| Abstract: |
| Based on minimal Gibbs free energy principle, element distributions in lead concentrate oxygen-rich bottom-blow smelting process were simulated and calculated, and compared with pilot experiment data. Under the typical technical parameters of oxygen-rich bottom-blow smelting process, influence of oxygen to feed ratio (OFR) on distribution behavior of Pb, Cu, As, Sb and Bi was investigated. The results indicate that distribution ratios of Pb, Cu, As, Sb and Bi in slag rise with increase of OFR. When OFR is 175 kg/t, distribution ratios of Pb, Cu, Sb and Bi in metal, slag and gas phases coincide with statistics data of pilot experiment. However, distribution ratio of As is not in line with the data due to lack of accurate activity coefficients. |
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