| 某金铁氧化矿中矿泥对氰化浸出影响的研究 |
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| 引用本文： | 宋宝旭,邱显扬,胡真,李沛伦,邹坚坚,付华.某金铁氧化矿中矿泥对氰化浸出影响的研究[J].贵金属,2017,38(1):53-59. |
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| 作者姓名： | 宋宝旭 邱显扬 胡真 李沛伦 邹坚坚 付华 |
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| 作者单位： | 广东省资源综合利用研究所 稀有金属分离与综合利用国家重点实验室,广东省矿产资源开发和综合利用重点实验室,广州,510651 |
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| 摘 要： | 考察了高岭土、绿泥石、白云石和褐铁矿4种常见易泥化矿物对氰化浸出过程的影响,发现褐铁矿和白云石在细磨时形成的次生矿泥比原生矿泥具有更强的吸附已溶金能力,使浸出率降低。研究了原矿经粗磨-磁选后易泥化矿物的分布,对云南某金铁氧化矿采用"粗磨-分类磁选-分组氰化浸出"的新工艺,有效减少了次生矿泥的生成,与"细磨-氰化浸出-磁选"的传统工艺相比,金浸出率由85.26%提高到93.05%,铁精矿回收率由41.20%提高到70.86%。
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| 关 键 词： | 有色金属冶金 矿泥 磨矿细度 氰化浸出 金 铁 回收 |
| 收稿时间： | 2016/7/27 0:00:00 |
Study on Influence of Clay Minerals in a Gold-Iron Oxides Ore on Gold Cyanidation |
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| SONG Baoxu,QIU Xianyang,HU Zhen,LI Peilun,ZOU Jianjian and FU Hua.Study on Influence of Clay Minerals in a Gold-Iron Oxides Ore on Gold Cyanidation[J].Precious Metals,2017,38(1):53-59. |
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| Authors: | SONG Baoxu QIU Xianyang HU Zhen LI Peilun ZOU Jianjian and FU Hua |
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| Affiliation: | State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651, China,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651, China,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651, China,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651, China,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651, China and State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource,Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651, China |
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| Abstract: | The influence of four common clay minerals, kaoline, chlorite, dolomite and limonite, on gold cyanidation were investigated. The results indicated that the adsorption contributed to the total loss of gold for the over-grinded limonite and dolomite clays. The distribution of the clay minerals after coarse grinding and magnetic separating process was tested. A novel combination process involving coarse grinding, classifying by magnetic separation, leaching, was proposed to eliminate the adverse effects of secondary slimes. Compared with the traditional process of fine grinding-cyanidation-magnetic separation, this new technique increased the gold extraction rate from 85.26% to 93.05% and the iron recovery rate from 41.20% to 70.86%. |
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| Keywords: | nonferrous metallurgy clay minerals grinding fineness cyanidation gold iron recovery |
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