| Recovering germanium from coal ash by chlorination with ammonium chloride |
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| 引用本文： | ZHUGuocai SHIWenzhong 等. Recovering germanium from coal ash by chlorination with ammonium chloride[J]. 稀有金属(英文版), 2002, 21(4): 278-281 |
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| 作者姓名： | ZHUGuocai SHIWenzhong 等 |
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| 作者单位： | [1]InstituteofNuclearEnergyTechnology,TsinghuaUniversity,Beijing102201,China [2]ChemistryDepartment,ZhuMadianNormalCollege,ZhuMadian463000,China |
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| 基金项目： | This project is financially supported by the National Nature Science Foundation of China (No. 59804004) and (No.50274046) |
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| 摘 要： | A new process of enriching germanium from coal ash was developed.The process involves in mixing the coal ash and ammonium chloride and then roasting the mixture to produce germanium chloride that is then absorbed by dilute hydrochloric acid and hydrolyzed to germanium oxide.The germanium recovery reached to 80.2% at the optimum condition:mass ratio of NH4Cl/coal ash is 0.15,roasting temperature 400℃ and roasting time 90min.
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| 关 键 词： | 锗 回收锗 煤灰 氯化铵 |
Recovering germanium from coal ash by chlorination with ammonium chloride |
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| ZHU Guocai,SHI Wenzhong,TIAN Jun. Recovering germanium from coal ash by chlorination with ammonium chloride[J]. Rare Metals, 2002, 21(4): 278-281 |
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| Authors: | ZHU Guocai SHI Wenzhong TIAN Jun |
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| Abstract: | A new process of enriching germanium from coal ash was developed. The process involves in mixing the coal ash and ammonium chloride and then roasting the mixture to produce germanium chloride that is then absorbed by dilute hydrochloric acid and hydrolyzed to germanium oxide. The germanium recovery reached to 80.2% at the optimum condition: mass ratio of NH4Cl/coal ash is 0.15, roasting temperature 400℃ and roasting time 90 min. |
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| Keywords: | germanium recovery coal ash chlorination lignite |
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