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投稿时间:2015-07-08 修订日期:2015-07-17 录用日期:2015-07-20 网络发布日期:2015-11-18
投稿时间:2015-07-08 修订日期:2015-07-17 录用日期:2015-07-20 网络发布日期:2015-11-18
中文摘要: 在碱性条件下采用过氧化氢氧化后再用盐酸蒸馏分离的方法从低品位褐煤锗精矿中回收锗。最佳工艺条件为:氢氧化钠用量为锗精矿量的30%、过氧化氢(30%)用量为锗精矿量的25%、氧化预处理时间1.5 h、蒸馏盐酸用量为锗精矿量的9倍,在此条件下锗回收率可以提高到97.2%以上,比常规蒸馏方法提高31.5个百分点。
Abstract:Germanium was recovered from low grade lignite germanium concentrates by oxidation with hydrogen peroxide under alkaline conditions and distillation separation with hydrochloric acid. Germanium recovery is 97.2% above with 31.5 percent point higher than that of conventional distillation under the optimum conditions including dosage of sodium hydroxide of 30% of germanium concentrates, dosage of hydrogen peroxide (30%) of 25% of germanium concentrates, oxidation pretreatment duration of 1.5 h, and dosage of hydrochloric acid of 9 times of germanium concentrates.
文章编号: 中图分类号:TF843; TF813 文献标志码:
基金项目:国家自然科学基金资助项目(U1037603);云南省技术创新人才项目(2010CI086)
引用文本:
普世坤,兰尧中.碱氧化预处理蒸馏分离回收还原精矿中的锗[J].有色金属(冶炼部分),2015(12):38-41.
PU Shikun,LAN Yaozhong.Separation and Recovery of Germanium from Germanium Concentrates Pretreated by Alkali Oxidation[J].Nonferrous Metals (Extractive Metallurgy),2015(12):38-41.
普世坤,兰尧中.碱氧化预处理蒸馏分离回收还原精矿中的锗[J].有色金属(冶炼部分),2015(12):38-41.
PU Shikun,LAN Yaozhong.Separation and Recovery of Germanium from Germanium Concentrates Pretreated by Alkali Oxidation[J].Nonferrous Metals (Extractive Metallurgy),2015(12):38-41.

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