| 回收铜阳极泥预处理上清液中银的工艺研究 |
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| 引用本文： | 张玲玲.回收铜阳极泥预处理上清液中银的工艺研究[J].稀有金属与硬质合金,2009,37(4). |
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| 作者姓名： | 张玲玲 |
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| 作者单位： | 江西铜业集团公司贵溪冶炼厂,江西,贵溪,335424 |
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| 摘 要： | 采用碘化钠沉银-硫化钠转型-硝酸转型工艺回收铜阳极泥预处理上清液中的银,确定了最佳工艺条件.沉银率最高可达96.56%,沉银后液银含量降至4 mg/L;粗银粉纯度达95%以上.
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| 关 键 词： | 银 回收 铜阳极泥 上清液 碘化钠 硫化钠 |
Silver Recovery from the Supernatant Produced during Copper Anode Slime Pretreatment |
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| ZHANG Ling-ling.Silver Recovery from the Supernatant Produced during Copper Anode Slime Pretreatment[J].Rare Metals and Cemented Carbides,2009,37(4). |
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| Authors: | ZHANG Ling-ling |
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| Abstract: | The silver in the supernatant,produced from copper anode slime pretreatment is recovered by silver precipitation with NaI-transformation with Na_2S and then HNO_3.And the optimal process conditions are determined.The results show that the silver recovery canreach 96.56%,the silver content in the precipitated Ag solution is reduced down to 4 mg/L and the purity of crude silver is above 95%. |
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| Keywords: | silver recovery copper anode slime supernatant NaI Na_2S |
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