| 含砷金矿石细菌预氧化－氰化提金的渗滤柱浸研究 |
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| 引用本文： | 向兰,裘荣庆,李希明,柯家骏.含砷金矿石细菌预氧化－氰化提金的渗滤柱浸研究[J].黄金,1994(3). |
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| 作者姓名： | 向兰 裘荣庆 李希明 柯家骏 |
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| 作者单位： | 中国科学院化工冶金研究所 |
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| 摘 要： | 本文报道了湖南龙王江含砷金矿石的细菌预氧化─—氰化提金的渗滤柱浸的实验结果。在摇床实验基础上，模拟渗滤堆浸，进行了９ｋｇ矿石／柱的渗滤柱浸试验。考察了矿石粒度、渗滤方式及细菌活性对渗滤柱浸的影响。实验结果表明，细菌对该含砷金矿的氧化有一定选择性，当脱砷率为３８．４％时氰化浸金率可达６６．８％，脱砷率进一步提高对氰化浸金效果的影响不明显。
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| 关 键 词： | 细菌脱砷 渗滤浸出 氰化提金 |
Biooxidaton and cyanidation of arsenic-bearing gold ore in percolation columns |
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| Xiang Lan,et al..Biooxidaton and cyanidation of arsenic-bearing gold ore in percolation columns[J].Gold,1994(3). |
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| Authors: | Xiang Lan |
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| Abstract: | The biooxidation and cyanidation of Long-wang jiang arsenic-bearing gold ore in percolation columns was studied in this paper.Based on the experiments of rotary shaker,the percolation leaching of this ore in the scale of 9 kg ore/column was conducted.The influence of panical sizes,percolation ways and the activities of bacteria on the percolation leaching process were investigated.The experimental results indicated that the biooxidation of Long-wang-jiang arsenic-bearing gold ore was carried out selectively.66.8% of gold were extracted in the cyanidation process when 38.4% of arsenic were removed by bacteria,while further increase of arsenic removal had little effeet on the cyanidation pro-cess. |
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| Keywords: | removal of arsenic by bacteria percolation leaching cyaniding for gold extraction |
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