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| Study on Removal of Arsenic and Sulfur from Refractory Gold Ore |
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Received:October 10, 2013
Revised:October 12, 2013
Accepted:October 14, 2013
Published Online:April 22, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.05.004 |
| KeyWord:refractory gold ore; dearsenization; desulfurization; argon gas; oxygen |
| Author | Institution |
| Zhang Jiantao |
北京科技大学 |
| Cheng Yao |
北京科技大学 |
| Chen Shuai |
北京科技大学 |
| Gao Wei |
北京科技大学 |
| Hu Xin |
北京科技大学 |
| Shen Shaobo |
北京科技大学 |
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| Abstract: |
| One refractory gold ore was first treated in the atmosphere with argon gas at a high temperature to remove arsenic and sulfur was removed from the residue obtained. The effects of technological parameters on dearsenization and desulfurization were investigated. The results show that 98% of arsenic from the ore is removed in the form of As2O3 and 26% of sulfur is removed under the optimum conditions including temperature of 600 ℃, time of 2 h, and argon flow rate of 200 mL/min. The sulfur removal rate is 97% under the optimum conditions including temperature of 650 ℃, time of 2 h, and oxygen flow rate of 200 mL/min. |
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