| 黄铁矿-微生物体系还原浸出低品位氧化锰矿工艺过程研究 |
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| 引用本文： | 张旭,冯雅丽,张小伟.黄铁矿-微生物体系还原浸出低品位氧化锰矿工艺过程研究[J].矿冶工程,2018,38(5):100-102. |
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| 作者姓名： | 张旭 冯雅丽 张小伟 |
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| 作者单位： | 1.河北地质大学 宝石与材料工艺学院,河北 石家庄 050031;
2.北京科技大学 土木与资源工程学院,北京 100083 |
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| 基金项目： | 中国大洋矿产资源研究开发计划(DY125-25-T-08);
中央高校基础研究基金(FRT-TP-09-002B);
河北地质大学校内项目(BQ2017019) |
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| 摘 要： | 利用黄铁矿和微生物组合浸出低品位氧化锰矿,研究了pH值、矿浆浓度和接菌浓度对低品位氧化锰矿中锰元素浸出的影响。结果表明,在pH＝1.6、矿浆浓度15%和接菌浓度20%的条件下,锰浸出率达到92.3%。嗜酸氧化亚铁硫杆菌与溶液中的Fe3+能够促进黄铁矿发生氧化还原反应,进而强化氧化锰矿中锰元素的浸出。
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| 关 键 词： | 氧化锰矿 黄铁矿 微生物浸出 氧化还原反应 锰 |
| 收稿时间： | 2018-04-02 |
Reductive Leaching Process of Low-grade Manganese Oxide Ore by Pyrite-Microorganism System |
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| ZHANG Xu,FENG Ya-li,ZHANG Xiao-wei.Reductive Leaching Process of Low-grade Manganese Oxide Ore by Pyrite-Microorganism System[J].Mining and Metallurgical Engineering,2018,38(5):100-102. |
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| Authors: | ZHANG Xu FENG Ya-li ZHANG Xiao-wei |
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| Affiliation: | 1.School of Gemology and Materials Technology, Hebei GEO University, Shijiazhuang 050031, Hebei, China;
2.School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Test on leaching of low-grade manganese oxide ore by using a combination of pyrite and microbe was conducted and effects of pH value, slurry concentration and microbial inoculation concentration in the system on the leaching process of manganese from low-grade manganese oxide ore were investigated. Results showed that, the manganese leaching rate reached 92.3% after the leaching process with pH=1.6, slurry concentration at 15% and inoculation concentration at 20%. It is found that acidithiobacillus ferrooxidans and Fe3+ in the solution can promote the oxidation-reduction reaction of pyrite, which then can improve the leaching effect of manganese from manganese oxide ore. |
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| Keywords: | manganese oxide ore pyrite micro-bioleaching oxidation-reduction reaction manganese |
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