| 环保型金、银提纯工艺试验研究 |
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| 引用本文： | 薛光,王俊杰,于永江,张培生. 环保型金、银提纯工艺试验研究[J]. 黄金, 2009, 30(8): 44-45 |
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| 作者姓名： | 薛光 王俊杰 于永江 张培生 |
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| 作者单位： | 中国人民武装警察部队黄金第七支队;河南省地矿局第一地质调查队;山东烟台金慧矿冶技术研究有限公司 |
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| 摘 要： | 提出一项环保型金、银提纯工艺：采用HCl，NaClO3混合试剂对金泥进行预处理，用HCl，NaClO4，KMnO4混合试剂浸金，浸金贵液用Na2SO3还原金；浸金渣中的银用Na2SO3溶液浸取，然后在盐酸介质中用铁粉还原出金属银。试验结果表明：该工艺获得的金纯度可达99．9％，银的纯度可达99％以上，金、银回收率均在99．5％以上。
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| 关 键 词： | 金泥 提纯 环保 金 银 |
Experimental research on environment-friendly technology for gold and silver purification |
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| Xue Guang,Wang Junjie,Yu Yongjiang,Zhang Peisheng. Experimental research on environment-friendly technology for gold and silver purification[J]. Gold, 2009, 30(8): 44-45 |
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| Authors: | Xue Guang Wang Junjie Yu Yongjiang Zhang Peisheng |
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| Affiliation: | Xue Guang, Wang Junjie, Yu Yongjiang , Zhang Peisheng( 1. The 7th Gold Detachment of Chinese People＇s Armed Police Force ;2. The First Geological Prospecting Team, Henan Provincial Geological Bureau;3. Shandong Yantai Jinhui Mining and Metallurgy Technology Research Co. , Ltd. ) |
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| Abstract: | An environment-friendly technology for gold and silver purification is put forward. A mixed reagent of HCl, NaClO3 and KMnO4 is used to leach gold, and the precious liquid is reduced by Na2SO3. Silver in the leaching residues is leached by Na2SO3 solution. Consequently, silver is reduced by iron powder in HCl media. The experiment results show that the gold purity with the method is up to 99.9 % and silver purity is up to 99 %. Both gold and silver recovery is more than 99.5 %. |
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| Keywords: | gold slime purification environment protection gold silver |
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