| 用硫酸亚铁浸出同时沉淀铁矾法处理低品位锰矿 |
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| 引用本文： | 王德全,宋庆双,彭瑞东.用硫酸亚铁浸出同时沉淀铁矾法处理低品位锰矿[J].东北大学学报(自然科学版),1998,19(2):168-170. |
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| 作者姓名： | 王德全 宋庆双 彭瑞东 |
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| 作者单位： | 东北大学材料与冶金学院,沈阳,110006 |
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| 基金项目： | 中国有色金属工业总公司资助项目，， |
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| 摘 要： | 研究了用硫酸亚铁浸出同时沉淀黄钠铁矾的方法处理低品位软锰矿的过程．在该过程中，软锰矿中的ＭｎＯ２被还原成ＭｎＳＯ４同时ＦｅＳＯ４被氧化并以黄钠铁矾的形态沉淀．沉淀产生的酸可直接用于ＭｎＯ２浸出．考察了硫酸、硫酸亚铁和硫酸钠的加入量及温度等参数对锰浸出和沉铁效率的影响．讨论了过程动力学．实验结果表明，锰浸出率和沉铁效率（质量分数）在最佳条件下可分别达到９６％和９２％．
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| 关 键 词： | 低品位锰矿 硫酸亚铁浸出 黄钠铁矾沉淀 |
Treatment of Low-Grade Manganese Ores by FeSO4 Leaching and Precipitation of Jarosite Simultaneously |
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| Wang Dequan,Song Qingshuang,Peng Ruidong.Treatment of Low-Grade Manganese Ores by FeSO4 Leaching and Precipitation of Jarosite Simultaneously[J].Journal of Northeastern University(Natural Science),1998,19(2):168-170. |
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| Authors: | Wang Dequan Song Qingshuang Peng Ruidong |
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| Abstract: | Treatment of low grade pyrolusite ores by FeSO 4 leaching and precipitation of jarosite simultaneously is studied,in which MnO 2 in the pyrolusite ore was reduced to MnSO 4 and FeSO 4 was oxidized and precipitated in the form of jarosite. In the process,acid produced during precipitation of the jarosite can directly be used for leaching of MnO 2. Efficiency of manganese extraction and iron precipitation were examinated as a function of the process parameters including amount of H 2SO 4,FeSO 4 and Na 2SO 4 and temperature. In addition,kinetics of the process was investigated. Results showed that efficiency of manganese extraction and iron precipitation are 96% and 92% respectively under the optimum conditions. |
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| Keywords: | low grade manganese ore ferrous sulphate leaching jarosite precipitation |
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