| 含砷氰化尾渣的固砷试验研究 |
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| 引用本文： | 杨永强,孙留根,杨玮娇,韦其晋.含砷氰化尾渣的固砷试验研究[J].有色金属(冶炼部分),2019(9):80-82. |
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| 作者姓名： | 杨永强 孙留根 杨玮娇 韦其晋 |
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| 作者单位： | 北京矿冶科技集团有限公司 |
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| 摘 要： | 将含砷氰化尾渣经过破氰处理后,再进行固砷。考察了硫酸亚铁用量、反应时间及矿浆初始pH对固砷效果的影响。结果表明,较优的固砷条件为:每吨尾渣硫酸亚铁用量110kg、反应时间2h、矿浆初始pH=10。在此条件下,对得到的固砷渣进行了浸出毒性试验,浸出液中总砷含量0.32mg/L,小于2.5mg/L的控制限值,可进入尾矿库处置。
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| 关 键 词： | 砷 氰化尾渣 脱氰 固砷 浸出毒性 |
| 收稿时间： | 2019/7/3 0:00:00 |
| 修稿时间： | 2019/7/3 0:00:00 |
Experimental Study on Arsenic Fixation of Cyanide Tailings |
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| YANG Yong-qiang,Sun liu gen,YANG wei jiao and WEI qi jin.Experimental Study on Arsenic Fixation of Cyanide Tailings[J].Nonferrous Metals(Extractive Metallurgy),2019(9):80-82. |
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| Authors: | YANG Yong-qiang Sun liu gen YANG wei jiao and WEI qi jin |
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| Affiliation: | Beijing General Research Institute of Mining and Metallurgy,,, |
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| Abstract: | Cyanide tailings were treated with decyanation and then arsenic fixation experiments were conducted. Effects of ferric sulfate dosage, reaction time and initial pH value of slurry on arsenic fixation were investigated. The results show that the optimum arsenic fixation conditions include ferrous sulfate dosage of 110 kg/t, reaction time of two hours, and initial pH value of slurry of 12. Leaching toxicity test of solid arsenic slag obtained under these conditions is carried out. The results show that arsenic content in leaching solution is 0.32 mg/L and can be disposed in tailings pond. |
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| Keywords: | arsenic cyanide tailings decyanation arsenic fixation leaching toxicity |
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