辐射防护2025，Vol.45Issue(4)：343-348,6.
CO2和O2地浸浸出液中铀浓度的快速测定方法
Rapid determination of uranium concentration in in-situ leaching uranium stock solution with CO2 and O2
东双 1刘金明 2宋静 1孙丽萍3
作者信息
- 1. 内蒙古自治区核与辐射监测中心,内蒙古包头 014000
- 2. 中核通辽铀业有限责任公司,内蒙古通辽 028000
- 3. 生态环境部核与辐射安全中心,北京 102401
- 折叠
摘要
Abstract
To establish a safe and rapid uranium concentration analysis method for CO2 and O2 in-situ leaching uranium technology.Research has shown that in an anhydrous ethanol water medium,UO22+forms a red complex with 5-Br-PADAP and F-under the mixed chelating agent CyDTA sulfosalicylic acid sodium fluoride.The optimal wavelength for measuring absorbance is 580 nm,and the suitable pH range for color development is 6.68-9.24.The amount of anhydrous ethanol used is 7.5 mL.The analysis results showed that the RSD was less than 1.0％.This method has shown good application in measuring uranium concentration in CO2 and O2 leaching solutions of uranium mining and metallurgy.The use of anhydrous ethanol instead of acetone has improved the efficiency and operational safety of uranium concentration analysis methods.关键词
地浸/铀浓度/5-Br-PADAP/分光光度法Key words
in-situ leaching/uranium concentration/5-Br-PADAP/spectrophotometry分类
化学化工引用本文复制引用
东双,刘金明,宋静,孙丽萍..CO2和O2地浸浸出液中铀浓度的快速测定方法[J].辐射防护,2025,45(4):343-348,6.
