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| Simulation Calculation on Recovery of Au, Ag and Cu from Complex Gold Concentrate by Oxidation Roasting - Sulfuric Acid Leaching - Cyanidation Process |
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Received:April 14, 2020
Revised:April 29, 2020
Accepted:April 30, 2020
Published Online:June 20, 2020
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| DOI：doi：10.3969/j.issn.1007-7545.2020.07.014 |
| KeyWord:complex gold minerals; whole process; metallurgical process calculation platform; simulation |
| Author | Institution |
| Wang Ruixiang |
江西理工大学 |
| Liu Chaxiang |
江西理工大学 |
| Yang yudong |
江西理工大学 |
| Yuan Yuanliang |
江西理工大学 |
| Zhou Jie |
江西理工大学 |
| Wang Yanyang |
江西理工大学 |
| Xu Zhifeng |
江西理工大学 |
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| Abstract: |
| Based on principles of mass conservation, chemical equilibrium, element allocation constraints, heat conservation and index constraints, a multi-constraint control model of material balance and thermal balance for process of caustic soda oxidation roasting, sulfuric acid leaching, and cyanidation to treat complex gold mineral was constructed. Whole process simulation system was exploited for complex gold mineral roasting-acid leaching-cyanidation process. Material distribution and energy conservation in typical working conditions of the whole process was calculated and validated with production data. The results show that relative errors of Cu, S, Fe, and SiO2 contents compared with real values are -14.95%, -0.37%, 1.77% and -6.54%, respectively, and relative errors of Pb, Zn, and As contents are 6.15%, 4.94%, and 4.84%, respectively. Relative errors of Cu, S, Fe and SiO2 contents in acid leaching copper slag are -12.90%, 3.48%, 5.23% and 4.74%, respectively, and relative errors of Pb, Zn, and As contents are -10.75%, 0 and -1.27%, respectively. Relative errors of Cu, S, Zn, Fe, and As contents in cyanide slag are -3.57%, 3.48%, 5.88%, 3.71%, and -1.27% respectively. |
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