冶炼废渣综合回收铀、铌、钽和锡 |
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引用本文: | 艾永亮,李伯平,曾青云,郭冬发.冶炼废渣综合回收铀、铌、钽和锡[J].国外铀金地质,2012(2):115-118. |
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作者姓名: | 艾永亮 李伯平 曾青云 郭冬发 |
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作者单位: | 核工业北京地质研究院,北京100029 |
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摘 要: | 根据某冶炼尾渣的成分和矿物特性,研究了铀、铌、钽和锡的回收工艺。开发出酸浸提铀-重选抛尾-弱磁选回收铌、钽一强磁选除铁回收锡的联合工艺流程。铀浸出率大于80%;铌、钽品位大于31%,回收率大于80%;锡精矿品位大于62%,回收率大于65%,锡精矿经放射性去污后,其放射性水平基本符合有色冶金行业标准。
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关 键 词: | 冶炼尾渣 铀 铌 钽 锡 |
Comprehensive recovery of uranium, niobium, tantalum and tin from smelter tailings |
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Authors: | AI Yong-liang LI Bo-ping ZENG Qing-yun GUO Dong-fa |
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Institution: | (Beijing Research Institute of Uranium Geology, Beijing 100029, China) |
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Abstract: | By study of the composition and minerals properties of smelter tailings, comprehensive experiments are carried out to recover uranium, niobium, tantalum and tin from the smelter tailings. A combined technique process is developed to leach out U with acid, separate tailing with gravity and recover Nb, Ta with low intensity magnet and separate Sn from iron using strong magnetic field. The U recovery rate is over 80%. Ta-Nb is over 80% while the grade is over 31%, Sn over 65% while the grade is over 62%. The radiation dose of Sn concentrate meets the demand of nonferrous industry standards by removing nuclide. |
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Keywords: | smelter tailings uranium niobium tantalum tin |
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