| 电镍钴渣氧化除铁的试验研究 |
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| 引用本文： | 程来星,康立武. 电镍钴渣氧化除铁的试验研究[J]. 矿冶工程, 2014, 34(2): 94-96. DOI: 10.3969/j.issn.0253-6099.2014.02.025 |
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| 作者姓名： | 程来星 康立武 |
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| 作者单位： | 黄石职业技术学院, 湖北 黄石 435000 |
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| 基金项目： | 湖北省黄石市科技局资助项目(201220237338.5) |
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| 摘 要： | 研究了钴渣溶出液中添加氧化剂Na2S2O8, H2O2 和KMnO4氧化沉铁的效果, 重点探讨了影响KMnO4氧化沉铁的因素。结果表明: 3种氧化剂中KMnO4沉铁效果最好; 采用KMnO4作氧化剂时, 在n(KMnO4)/n(Fe2+)=1∶5, 氧化温度为85 ℃, 反应时间120 min, 氧化后液pH值为4.5的条件下, KMnO4氧化沉铁率为96.79%, 满足深度除铁要求。
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| 关 键 词： | 含铁钴渣 氧化剂 氧化除铁 沉铁率 |
| 收稿时间： | 2013-11-05 |
Experimental Study on Iron Removal from Cobalt Residue Generated in Nickel Electrolysis Process |
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| CHENG Lai-xing,KANG Li-wu. Experimental Study on Iron Removal from Cobalt Residue Generated in Nickel Electrolysis Process[J]. Mining and Metallurgical Engineering, 2014, 34(2): 94-96. DOI: 10.3969/j.issn.0253-6099.2014.02.025 |
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| Authors: | CHENG Lai-xing KANG Li-wu |
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| Affiliation: | Huangshi Polytechnic College, Huangshi 435000, Hubei, China |
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| Abstract: | The effect of iron precipitation from cobalt residue solution by oxidation with oxidants Na2S2O8, H2O2 and KMnO4 was investigated with an emphasis on the factors influencing iron oxidation precipitation by KMnO4. The experiment results indicated that among three oxidants KMnO4 brought the best results. When KMnO4 was used as oxidizing agent, the iron precipitation rate was 96.79% under the conditions of n(KMnO4)/n(Fe2+) at 1∶5, oxidation temperature of 85 ℃, reaction time of 120 min and post-oxidation solution at pH of 4.5. Therefore, it meets the requirement of deep removal of iron. |
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| Keywords: | Fe-containing cobalt residue oxidant oxidation removal of iron rate of iron precipitation |
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