CO2和O2地浸浸出液中铀浓度的快速测定方法

辐射防护 ›› 2025, Vol. 45 ›› Issue (4): 343-348.

CO₂和O₂地浸浸出液中铀浓度的快速测定方法

东双¹, 刘金明², 宋静¹, 孙丽萍³

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

收稿日期:2024-05-22 发布日期:2025-07-28
通讯作者: 刘金明。E-mail:978856209@qq.com
作者简介:东双(1980—),男,2006年毕业于吉林大学环境工程专业,2013年毕业于吉林大学环境科学专业,获硕士学位,高级工程师。E-mail:63662449@qq.com

Rapid determination of uranium concentration in in-situ leaching uranium stock solution with CO₂ and O₂

DONG Shuang¹, LIU Jinming², SONG Jing¹, SUN Liping³

1. Nuclear and Radiation Monitoring Center of Inner Mongolia Autonomous Region,Inner Mongolia Baotou 014000;
2. Tongliao Uranium Co. CNNC Ltd.,Inner Mongolia Tongliao 028000;
3. Nuclear and Radiation Safety Center, MEE, Beijing 102401

Received:2024-05-22 Published:2025-07-28

摘要/Abstract

摘要： 针对CO₂和O₂地浸采铀技术建立一种安全快速的铀浓度分析方法。研究表明在无水乙醇-水介质中,CyDTA-磺基水杨酸-氟化钠混合络合剂下,UO₂²⁺与5-Br-PADAP和F^-形成红色配合物,测量最佳吸光度的波长为580 nm,适宜显色酸度的pH值范围为6.68~9.24,无水乙醇用量7.5 mL,得到分析结果RSD<1.0%。该方法对铀矿冶CO₂和O₂地浸浸出液中铀浓度的测量应用效果良好,使用无水乙醇替换丙酮,提高了铀浓度分析方法的工作效率与操作安全性。

关键词: 地浸, 铀浓度, 5-Br-PADAP, 分光光度法

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.

Key words: in-situ leaching, uranium concentration, 5-Br-PADAP, spectrophotometry

中图分类号:

O657.3

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.

DONG Shuang, LIU Jinming, SONG Jing, SUN Liping. Rapid determination of uranium concentration in in-situ leaching uranium stock solution with CO₂ and O₂[J]. RADIATION PROTECTION, 2025, 45(4): 343-348.

参考文献

[1] 刘金明,张勇,汤庆四,等.CO₂和O₂地浸铀矿原液中SO₄^2-的快速测定[J].核化学与放射化学,2018,40(5):311-316.
LIU Jinming,ZHANG Yong,TANG Qingsi, et al.Rapid determination of SO₄^2- in CO₂ and O₂ in-situ leaching uranium solutionl[J]. Journal of Nuclear and Radiochemistry,2018,40(5):311-316.
[2] 江玲, 邓秀文, 颜世栋, 等. 岩石矿物中的铀的分析方法研究进展[J]. 广东化工, 2017, 44(18): 130+140.
JIANG Ling, DENG Xiuwen, YAN Shidong, et al. Advance in analytical methods for the analysis of Uranium in rock mineral[J]. Guangdong Chemical Industry, 2017, 44(18): 130+140.
[3] 郭冬发, 范光, 欧光习, 等. 与地浸砂岩型铀矿有关的分析测试技术发展趋势[J]. 国外铀金地质, 2002, 19(3): 174-181.
GUO Dongfa, FAN Guang, OU Guangxi, et al. Development trend of analysis and testing technology related to in-situ leaching sandstone type Uranium deposits[J]. Overseas Uranium and Gold Geology, 2002, 19(3): 174-181.
[4] 倪湖权. 原子荧光光谱法测定汞、银、稀土元素及铀的研究[D]. 南宁: 广西大学, 2014.
[5] 宋虎跃, 吴勇民, 郝佳瑞. 钒酸铵滴定铀的原理及实验条件讨论[J]. 化工之友, 2007(13): 33-34.
SONG Huyue, WU Yongmin, HAO Jiarui. Discussion on the principle and experimental conditions of ammonium vanadate titration of Uranium[J]. Friend of Chemical Industry, 2007(13): 33-34.
[6] 蔡金芳, 张富平, 张洁, 等. 砂岩型铀矿勘查样品中铀的野外快速测定方法研究[J]. 铀矿地质, 2005, 21(3): 177-182+168.
CAI Jinfang, ZHANG Fuping, ZHANG Jie, et al. Study of on-the-spot rapid determination method of ranium in exploration samples from sandstone-type Uranium deposits[J]. Uranium Geology, 2005, 21(3): 177-182+168.
[7] 郭冬发, 刘汉彬, 范光, 等. 核地质分析测试技术用于页岩气勘探开发检测[J]. 世界核地质科学, 2012, 29(4): 232-240.
GUO Dongfa, LIU Hanbin, FAN Guang, et al. Application of analytical techniques of nuclear geology in the test for shale gas exploration and exploitation[J]. World Nuclear Geoscience, 2012, 29(4): 232-240.
[8] 胡家宁, 林娜, 高博, 等. 有机荧光探针在铀酰离子检测方面的研究进展[J]. 核化学与放射化学, 2018, 40(6): 337-348.
HU Jianing, LIN Na, GAO Bo, et al. Progress of organic fluorescent probes in uranyl ion detection[J]. Journal of Nuclear and Radiochemistry, 2018, 40(6): 337-348.
[9] 杜浪, 李玉香, 马雪, 等. 偶氮胂Ⅲ分光光度法测定微量铀[J]. 冶金分析, 2015, 35(1): 68-71.
DU Lang, LI Yuxiang, MA Xue, et al. Determination of micro Uranium by arsenazo Ⅲ spectrophotometry[J]. Metallurgical Analysis, 2015, 35(1): 68-71.
[10] 白静, 赵梁, 范芳丽, 等. 高矿化度水样中微量铀的测定[J]. 核化学与放射化学, 2011, 33(6): 321-327.
BAI Jing, ZHAO Liang, FAN Fangli, et al. Trace Uranium determination in high salinity brine[J]. Journal of Nuclear and Radiochemistry, 2011, 33(6): 321-327.
[11] Al-Muqrin A, El-Sharkawy A, Abdellah W M. Uranium content in groundwater by laser fluorimetry; method validation and dose assessment[J]. Journal of Radiological Protection: Official Journal of the Society for Radiological Protection, 2018, 38(3): 1140-1146.
[12] 环境保护部核设施安全监管司. 环境样品中微量铀的分析方法: HJ 840—2017[S]. 北京:中国环境科学出版社, 2017.
[13] 张燮.工业分析化学[M]. 北京: 化学工业出版社, 2003: 4.
ZHANG Xie. Industrial analytical chemistry[M]. Beijing: Chemical Industry Press,2003: 4.
[14] 中国环境科学研究院. 环境监测分析方法标准制订技术导则: HJ 168—2020[S]. 北京:中国环境科学出版社, 2020.

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

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

Metrics

本文评价

推荐阅读 10