| 含炭难处理金矿石碘法浸出 |
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| 引用本文： | 李桂春,卢寿慈.含炭难处理金矿石碘法浸出[J].北京科技大学学报,2003,25(6):501-503,523. |
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| 作者姓名： | 李桂春 卢寿慈 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083;黑龙江科技学院资源与环境工程系,哈尔滨,150027
2. 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： | 国务院外国专家局资助项目;T000360062; |
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| 摘 要： | 用非氰试剂——碘从矿石中浸出黄金，目的是研究碘化浸金取代剧毒氰化物提金的可行性；采用了热力学方法对碘-碘化物溶金的可能性进行了简单分析，用碘-碘化物溶液对含炭难处理金矿石进行了浸出工艺条件实验及与氰化浸出的对比实验，取得了较理想的实验结果：浸出4h金浸出率达到95％，氰化法直接浸出12h金浸出率80％；碘化法浸金速度快，金浸出率高。
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| 关 键 词： | 难处理金矿 碘化物 浸出率 氰化物 热力学 |
Iodine Leaching of Gold from Lean Gold Ore with Charcoal |
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| LI Guichun,LU Shouci
Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing ,China,
Heilongjiang Science and Technology College,Harbin ,China.Iodine Leaching of Gold from Lean Gold Ore with Charcoal[J].Journal of University of Science and Technology Beijing,2003,25(6):501-503,523. |
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| Authors: | LI Guichun LU Shouci
Civil and Environmental Engineering School University of Science and Technology Beijing Beijing China Heilongjiang Science and Technology College Harbin China |
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| Institution: | LI Guichun,LU Shouci
Civil and Environmental Engineering School,University of Science and Technology Beijing,Beijing 100083,China,
Heilongjiang Science and Technology College,Harbin 150027,China |
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| Abstract: | Gold leaching from refractory Au ores using iodine and iodides was investigated. Thermodynamic analysis showed that the process is feasible. The technological parameters of iodine leaching were optimized. Comparing to the cyanidation process, iodine leaching gives better metallurgical performance, shorter leaching time and higher Au recovery. The Au recovery reached 95% after iodine leaching for 4 h, whereas the cyanidation process of 12 h gave a Au recovery of 80%. |
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| Keywords: | lean gold ore with charcoal iodine iodide leaching leaching ratio |
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