| 碱氧化预处理蒸馏分离回收还原精矿中的锗 |
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| 引用本文： | 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, 0(12): 38-41 |
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| 作者姓名： | 普世坤 兰尧中 |
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| 作者单位： | 上海大学材料科学与工程学院;云南临沧鑫圆锗业股份有限公司;云南大学矿产开发与循环经济研究所,上海大学材料科学与工程学院 |
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| 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） |
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| 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1.5h、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。
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| 关 键 词： | 锗 碱氧化预处理 蒸馏 回收 |
| 收稿时间： | 2015-07-08 |
| 修稿时间： | 2015-07-17 |
Separation and Recovery of Germanium from Germanium Concentrates Pretreated by Alkali Oxidation |
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| PU Shikun and LAN Yaozhong. Separation and Recovery of Germanium from Germanium Concentrates Pretreated by Alkali Oxidation[J]. Nonferrous Metals(Extractive Metallurgy), 2015, 0(12): 38-41 |
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| Authors: | PU Shikun and LAN Yaozhong |
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| Affiliation: | Shanghai University School of Materials Science and Engineering;China;Yunnan Lincang Xin Yuan Germanium Industry Co Ltd,Lincang;China;Research Institute of Mineral Development and Recycling Economy,Yunnan University;China, |
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| 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. |
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| Keywords: | germanium alkali oxidation pretreatment distillation recovery |
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