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投稿时间:2018-08-31 修订日期:2018-09-06 录用日期:2018-09-07 网络发布日期:2018-12-21
投稿时间:2018-08-31 修订日期:2018-09-06 录用日期:2018-09-07 网络发布日期:2018-12-21
中文摘要: 采用氧压酸浸工艺选择性提取铌钛铀复杂多金属矿石中的铀,并对浸出过程铀、铌、钛、铁等元素的溶出行为进行了研究。结果表明,在硫酸用量240 g/kg、矿浆液固体积质量比1.5 mL/g、浸出反应温度180 ℃、氧气分压0.5 MPa、反应时间6 h条件下,铀浸出率可达到97.2%,而铌、钛、铁等则留于浸出残渣中。实现了从复杂难破解多金属矿石中高效选择性提铀的目的。
Abstract:Uranium was selective leached from complicated polymetallic ores betafite by oxygen pressure leaching. Dissolving performances of U, Nb, Ti and Fe were investigated. The results show that uranium leaching rate is 97.2%, and most of Nb, Ti and Fe remains in leaching residue under the optimum conditions including dosage of sulfuric acid of 240 g/kg, L/S of 1.5 mL/g, leaching temperature of 180 ℃, oxygen partial pressure of 0.5 MPa, and leaching time of 6 h. High efficiency selective extraction of uranium from complicated polymetallic ores is achieved.
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基金项目:中国核工业集团有限公司科技创新计划核心能力提升项目(中核科发[2016]318号)
引用文本:
刘会武,黄 永,贾秀敏,马嘉,刘忠臣,师留印,杨剑飞,向秋林.氧压酸浸法从铌钛铀矿中选择性提取铀[J].有色金属(冶炼部分),2019(1):48-52.
LIU Hui-wu,HUANG Yong,JIA Xiu-min,Ma Jia,LIU Zhong-chen,SHI Liu-Yin,YANG Jian-fei,XIANG Qiu-lin.Selective Leaching of Uranium from Betafite by Oxygen Pressure Leaching[J].Nonferrous Metals (Extractive Metallurgy),2019(1):48-52.
刘会武,黄 永,贾秀敏,马嘉,刘忠臣,师留印,杨剑飞,向秋林.氧压酸浸法从铌钛铀矿中选择性提取铀[J].有色金属(冶炼部分),2019(1):48-52.
LIU Hui-wu,HUANG Yong,JIA Xiu-min,Ma Jia,LIU Zhong-chen,SHI Liu-Yin,YANG Jian-fei,XIANG Qiu-lin.Selective Leaching of Uranium from Betafite by Oxygen Pressure Leaching[J].Nonferrous Metals (Extractive Metallurgy),2019(1):48-52.

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