| 银离子在细菌浸出黄铜矿中的催化行为研究 |
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| 引用本文： | 王康林,韩效钊,汪模辉,王百年. 银离子在细菌浸出黄铜矿中的催化行为研究[J]. 矿冶工程, 2003, 23(5): 60-62 |
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| 作者姓名： | 王康林 韩效钊 汪模辉 王百年 |
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| 作者单位： | 1.合肥工业大学化工学院, 安徽合肥230009;2.成都理工大学, 四川成都610059 |
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| 基金项目： | 国土资源部九五重点学科生长点基金项目外国专家局国际合作项目 (993451 6) |
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| 摘 要： | 对银离子催化细菌浸出黄铜矿进行了研究。在银离子存在下, 矿粒越细, 浸出率就越高;浸出溶液pH 值在1.5～2 时浸出率较高;银离子浓度在10 mg/ L 时浸出效果最好。在实验范围内, 不论银离子初始值大小如何, 银离子在加入浸出体系后主要是以硫化银形式存在, 以离子形式存在于溶液中只占很小一部分。
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| 关 键 词： | 生物选矿 细菌浸出 黄铜矿 银离子 催化 |
| 收稿时间： | 2003-04-13 |
| 修稿时间： | 2003-04-13 |
The Study of Catalyzing Behavior of Silver Ions in Bacterial Leaching of Chalcopyrite |
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| WANG Kang-Lin,HAN Xiao-Zhao,WANG Mo-Hui,WANG Bai-Nian. The Study of Catalyzing Behavior of Silver Ions in Bacterial Leaching of Chalcopyrite[J]. Mining and Metallurgical Engineering, 2003, 23(5): 60-62 |
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| Authors: | WANG Kang-Lin HAN Xiao-Zhao WANG Mo-Hui WANG Bai-Nian |
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| Affiliation: | 1.Hefei University of Technology, Hefei 230009, Anhui, China;2.Chengdu University of science and Technology, Chengdu 610059, Sichuan, China |
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| Abstract: | An investigation is made of the catalyzing behavior of silver ions in bacterial leaching of chalcopyrite.In the presence of Ag ions, the finer the size of chalcopyrite particles is, the higher the leaching rate is.At a leaching liquor pH of 1.5 ～2.0, the bioleaching results are better, and at Ag ion concentration of 10 mg/L, the leaching rate is the highest.In the range of experiment, Ag ions, which have been added to the leaching system, occur mostly as silver sulfide and a few as Ag ion, regardless of the initial concentration of Ag ions. |
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| Keywords: | bilogical mineral processing bacterial leaching chalcopyrite silver ion catalyzing |
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