| 磁黄铁矿和黄铁矿的生物浸出研究 |
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| 引用本文： | 刘晓荣,姜圣才.磁黄铁矿和黄铁矿的生物浸出研究[J].矿冶工程,2006,26(6):39-42. |
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| 作者姓名： | 刘晓荣 姜圣才 |
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| 作者单位： | 上海应用技术学院,材料系,上海,200233;北京科技大学,土木与环境工程学院,北京,100083 |
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| 基金项目： | 上海市重点学科建设基金资助项目（P1502） |
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| 摘 要： | 研究了磁黄铁矿和黄铁矿的细菌浸出脱硫。研究表明, 酸性溶液中磁黄铁矿比黄铁矿更容易溶解, 其浸出脱硫率比黄铁矿的高。细菌的氧化作用使磁黄铁矿和黄铁矿的脱硫率明显升高, 且随浸出时间的增长,脱硫速度也明显加快。磁黄铁矿细菌浸出的最大脱硫率达65.65%, 比无菌浸出时提高了23.57个百分点; 而黄铁矿细菌浸出的脱硫率最高达50.49%, 比无菌浸出时提高了17.29个百分点。生物浸出磁黄铁矿的过程中存在细菌的直接作用。
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| 关 键 词： | 生物浸出 磁黄铁矿 黄铁矿 氧化亚铁硫杆菌 脱硫 |
| 文章编号： | 0253-6099(2006)06-0039-04 |
| 收稿时间： | 2006-03-02 |
| 修稿时间： | 2006年3月2日 |
Bioleaching of Pyrrhotite and Pyrite Using Thiobacillus Ferrooxidans |
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| LIU Xiao-rong,JIANG Sheng-cai.Bioleaching of Pyrrhotite and Pyrite Using Thiobacillus Ferrooxidans[J].Mining and Metallurgical Engineering,2006,26(6):39-42. |
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| Authors: | LIU Xiao-rong JIANG Sheng-cai |
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| Affiliation: | 1. Department of Materials Engineering, Shanghai Institute of Technology, Shanghai 200233, China;
2. College of Civil and Environmental Engineering, Beijing University of Science and Technology, Beijing 100083, China |
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| Abstract: | Thiobacillus ferrooxidans were introduced in the bioleaching process of pyrrhotite and pyrite for desulfurization. The results show that pyrrhotite can be more easily dissolved, leached and desulfurized in acidic solution than pyrite. Because of the enhanced oxidation of pyrrhotite and pyrite in the presence of thiobacillus ferrooxidans, their desulfurization speed and rate were increased markedly. The highest desulfurization rate of pyrrhotite reached 65.65%, 23.57% more than that of chemical leaching, while the highest rate of pyrite was 50.49%, as well 17.29% higher. It was proved there existed the direct effect when pyrrhotite was leached by thiobacillus ferrooxidans. |
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| Keywords: | bioleaching pyrrhotite pyrite thiobacillus ferrooxidans desulfurization |
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