| 氰化尾渣中铁的浸出对金银浸出率的影响 |
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| 引用本文： | 张跃红,李 云,魏 晋,王 云,栾东武,刘洪晓.氰化尾渣中铁的浸出对金银浸出率的影响[J].有色金属(冶炼部分),2015(12):48-50. |
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| 作者姓名： | 张跃红 李 云 魏 晋 王 云 栾东武 刘洪晓 |
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| 作者单位： | 青海省第一地质矿产勘察院,北京矿冶研究总院,招远市招金金合科技有限公司,北京矿冶研究总院,招远市招金金合科技有限公司,新疆星塔矿业有限公司 |
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| 基金项目： | “十二五”国家支撑计划项目(2012BAB08B04)；国土资源部公益性行业科研专项(201211069-02) |
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| 摘 要： | 对难处理金精矿两段焙烧提金流程中的氰化尾渣进行强化酸浸,酸浸过程中氧化铁矿物的溶解而使其中包裹的金得到解离并裸露,在氰化浸出过程中容易被浸出。研究表明,随着焙砂中氧化铁相包裹体的逐步酸溶,其酸浸渣中的金、银的氰化浸出率也随之显著提高。该预处理方法为提高难处理金精矿中金、银的浸出回收率提供了一种有效的途径。
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| 关 键 词： | 难处理金精矿 氰化尾渣 氧化铁包裹 金 银 酸浸 |
| 收稿时间： | 2015/9/23 0:00:00 |
| 修稿时间： | 2015/9/23 0:00:00 |
Effect of Dissolving of Ferric Oxide from Calcine Cyanide Residue on Leaching of Gold and Silver |
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| Zhang Yuehong,Li Yun,Wei Jin,Wang Yun,Luan Dongwu and Liu Hongxiao.Effect of Dissolving of Ferric Oxide from Calcine Cyanide Residue on Leaching of Gold and Silver[J].Nonferrous Metals(Extractive Metallurgy),2015(12):48-50. |
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| Authors: | Zhang Yuehong Li Yun Wei Jin Wang Yun Luan Dongwu and Liu Hongxiao |
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| Affiliation: | Qing Hai First Surveying Institute of Geology and Minerals,Qing Hai Pingan County,,,,, |
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| Abstract: | Calcine cyaniding-residue produced from two-stage roasting of refractory gold concentrate was leached with sulfuric acid. Gold can be easily cyaniding leached after ferric oxide was dissociated and unlocked from the wrapped gold during acid leaching. Extraction efficiency of gold and silver raised remarkably when ferric oxide was dissociated continuously, which is proved to be an effective pretreatment for refractory gold concentrate to improve gold and silver extraction efficiency. |
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| Keywords: | refractory gold concentrate calcine cyanide residue ferric oxide-encapsulated gold silver acid leaching |
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