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| Optimization of Secondary Pretreatment Process of Copper Anodized Mud |
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Published Online:January 22, 2018
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| DOI： |
| KeyWord:copper anode mud; secondary pretreatment; antimony; bismuth; tellurium; dispersion |
| Author | Institution |
| JIANG Zhen-qing |
贵溪冶炼厂冶金化工研究所 |
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| Abstract: |
| Based on pretreatment experiment to remove copper and arsenic from anode mud, secondary pretreatment to remove antimony and bismuth was studied without dispersion of tellurium. The results show that leaching rate of antimony and bismuth is 96.93% and 95.79% respectively with tellurium left in pretreatment slag under the optimum conditions including temperature of 75 ℃, concentration of primary acid of 290 g/L (in sulfuric acid), initial Cl- concentration of 150 g/L, reaction time of 3 h, L/S=4︰1, and reaction potential is controlled by SO2. |
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