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| Optimization of sulfated roasting steamed Se from low As, Sb and Bi in copper anode slime by response surface methodology |
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Received:September 11, 2021
Revised:October 03, 2021
Accepted:October 20, 2021
Published Online:April 27, 2022
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| DOI： |
| KeyWord:Response surface method;Sulfated roasting;Se;Copper anode slime |
| Author | Institution |
| Liao Chunfa |
Faculty of materials metallurgy and chemistry，Jiangxi University of Science and Technology |
| Xiao Jie |
Faculty of materials metallurgy and chemistry，Jiangxi University of Science and Technology |
| Zou JIanbo |
Jiangxi Copper lead & zinc metals Co.,Ltd |
| Zeng Yanliang |
Faculty of materials metallurgy and chemistry，Jiangxi University of Science and Technology |
| Liu Fupeng |
Faculty of materials metallurgy and chemistry，Jiangxi University of Science and Technology |
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| Abstract: |
| In order to accurately determine the optimal process conditions for sulphated roasting steamed Se of low arsenic, antimony, bismuth, copper anode slime, Optimization via response surface methodology, The effects of roasting temperature, holding time and sulfuric acid dosage on the Se steaming rate were explored. Established the quadratic regression equation of the selenium-steaming process by sulfation roasting. The results show that the roasting temperature and holding time have a significant effect on the selenium evaporation rate. Under the optimal conditions that the roasting temperature is 522℃, the holding time is 22.34 min, and the amount of sulfuric acid is 0.333mL/g, the model predicts that the Se steaming rate is 99.48%. However, the experimental selenium distillation rate is 99.12%, which is 0.36% different from the predicted value. The matching is good and the response surface method model of the sulphating roasting process is reliable. |
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