| 低品位铁锰型金银矿的硫脲浸出研究 |
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| 引用本文： | 曾亮,李仲英,贺周初,彭爱国,余长艳.低品位铁锰型金银矿的硫脲浸出研究[J].贵金属,2008,29(4). |
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| 作者姓名： | 曾亮 李仲英 贺周初 彭爱国 余长艳 |
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| 作者单位： | 1. 湖南大学,化学化工学院,湖南,长沙,410082
2. 湖南化工研究院,湖南,长沙,410000 |
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| 摘 要： | 对铁锰型金银矿采用预先浸锰工艺,使被二氧化锰包裹金银裸露出来,同时降低硫脲浸出金银时的氧化还原电位,有效减少了硫脲消耗量.结果表明,当矿样为200g,经浸锰预处理后,在pH =1.5,电位300mV,亚硫酸钠6g,浸出时间4h的最佳条件下,金、银的浸出率分别为98%、45%,硫脲消耗仅为6kg/t.
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| 关 键 词： | 冶金技术 低品位矿 金 银 硫脲 浸出 |
Research on the Leaching of Low-grade Fe-Mn Type Gold and Silver Ore |
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| ZENG Liang,LI Zhongying,HE Zhouchu,PENG Aiguo,YU Changyan.Research on the Leaching of Low-grade Fe-Mn Type Gold and Silver Ore[J].Precious Metals,2008,29(4). |
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| Authors: | ZENG Liang LI Zhongying HE Zhouchu PENG Aiguo YU Changyan |
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| Affiliation: | ZENG Liang1,LI Zhongying1,HE Zhouchu2,PENG Aiguo2,YU Changyan2 (1.College of Chemistry , Chemical Engineering,Hunan University,Changsha,Hunan 410082,China,2.Hunan Research Institute of Chemical Industry,Hunan 410007,China) |
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| Abstract: | Leaching was used to pretreat the Fe-Mn type gold and silver ore.During the process,gold and silver enwrapped inside manganese dioxide are exposed.Thus,the oxidation reduction potential for leaching of gold and silver by thiourea is decreased and the consumption of thiourea is reduced.The experimental results show that the optimal operating conditions for leaching of gold and silver are as follows: pH 1.5,redox potential 300mV,and when the sample quantity of ore is 200g,the amount of sodium sulfite is 6g an... |
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| Keywords: | metallurgical technology low-grade ore gold silver thiourea leaching |
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