基于球形氧化铝的模拟溶液堆低浓铀燃料溶液中Mo的提取研究

王海军; 孙志中; 张劲松; 陈云明; 罗宁; 吴建荣; 耿自胜

doi:10.13832/j.jnpe.2024.01.0098

基于球形氧化铝的模拟溶液堆低浓铀燃料溶液中Mo的提取研究

doi: 10.13832/j.jnpe.2024.01.0098

王海军^{1, 2, 3,},
孙志中^{1, 2, 3},
张劲松^{1, 2, 3, ,},
陈云明^{1, 2, 3},
罗宁^{1, 2, 3},
吴建荣^{1, 2, 3},
耿自胜^{1, 2, 3}

1.
中国核动力研究设计院，成都，610213
2.
四川省放射性同位素工程技术研究中心，成都，610213
3.
同位素及药物国家工程研究中心，成都，610213

基金项目: 四川省科技厅重大科技专项（2020ZDZX0010）

详细信息

作者简介:
王海军（1992—），男，硕士研究生，现主要从事医用同位素研发，E-mail: 182315996@qq.com

通讯作者:
张劲松，E-mail: zjs909@sohu.com

中图分类号: TL92⁺2
计量
- 文章访问数: 68
- HTML全文浏览量: 15
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- 被引次数: 0
出版历程
- 收稿日期: 2023-03-16
- 修回日期: 2023-04-21
- 刊出日期: 2024-02-15

Research on Extraction of Mo from Simulated Low Enriched Uranium Fuel Solution of Medical Isotope Reactor Based on Spherical Alumina

Wang Haijun^{1, 2, 3
,},
Sun Zhizhong^{1, 2, 3},
Zhang Jinsong^{1, 2, 3
, ,},
Chen Yunming^{1, 2, 3},
Luo Ning^{1, 2, 3},
Wu Jianrong^{1, 2, 3},
Geng Zisheng^{1, 2, 3}

1.
Nuclear Power Institute of China, Chengdu, 610213, China
2.
Radioisotope Engineering Technology Research Center of Sichuan, Chengdu, 610213, China
3.
National Engineering Research Center of Isotope and Medicine, Chengdu, 610213, China

摘要

摘要: 为改善医用同位素试验堆在⁹⁹Mo提取时，氧化铝填料柱易堵塞的情况，进一步提高在低浓铀条件下⁹⁹Mo的吸附效果，本文采用溶胶凝胶-油柱成型的方法开展氧化铝微球的合成研究，考察其对Mo的吸附行为以及动态吸附条件；并在模拟低浓铀溶液堆燃料溶液中，进行球形氧化铝对Mo的提取研究。结果表明，制备的球形氧化铝具有更大粒径和比表面积，可有效缓解填料柱堵塞问题，并提高Mo的吸附容量。制备的球形氧化铝对Mo的吸附过程符合准二级动力学模型和Freundlich吸附等温线模型。在低浓铀燃料模拟溶液中，球形氧化铝对Mo的回收率为87.4%，杂质也符合药典要求。因此，制备的球形氧化铝有望应用于医用同位素试验堆⁹⁹Mo提取过程。
- 油柱成型法 /
- 球形氧化铝 /
- ⁹⁹Mo /
- 低浓铀 /
- 医用同位素试验堆
Abstract: In order to improve the situation that alumina column is easily blocked during the extraction of ⁹⁹Mo in Medical Isotope Test Reactor and further improve the adsorption effect of ⁹⁹Mo under low enriched uranium condition, the synthesis of spherical alumina was studied. Alumina microspheres were prepared by sol-gel-oil column molding, and their adsorption behavior and dynamic adsorption conditions were investigated. The study on the extraction of Mo by spherical alumina in simulated low enriched uranium fuel solution was carried out. The results show that the prepared spherical alumina has larger particle size and specific surface area, which can effectively alleviate the column plugging problem and improve the adsorption capacity of Mo. The adsorption process of Mo was consistent with the quasi-second-order kinetic model and the Freundlich adsorption isotherm model. In the simulated solution of low enriched uranium fuel, the recovery rate of spherical alumina to Mo is 87.4%, and the impurities also meet the requirements of pharmacopoeia. Therefore, the prepared spherical alumina is expected to be applied to the extraction process of ⁹⁹Mo in medical isotope test reactor.
- Oil column method /
- Spherical alumina /
- ⁹⁹Mo /
- Low enriched uranium /
- Medical isotope test reactor

HTML全文

图 1 球形氧化铝BET测试图

dV/dlogD表示一定孔段区间孔体积的变化率，cm³/(g·nm)

Figure 1. BET Test Diagram of Spherical Alumina

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图 2 2种氧化铝的扫描电镜对比图

Figure 2. Comparison of Scanning Electron Microscopy Images of Two Kinds of Alumina

下载: 全尺寸图片幻灯片

图 3 氧化铝对Mo吸附量与时间关系图

Figure 3. Relationship between Mo Adsorption Capacity of Alumina and Time

下载: 全尺寸图片幻灯片

图 4 氧化铝对Mo的3种动力学模型拟合曲线

Figure 4. Three Kinetic Model Fitting Curves for Alumina to Mo

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图 5 氧化铝对Mo的吸附等温线

Figure 5. Adsorption Isotherms of Mo by Alumina

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图 6 氧化铝对Mo的4种模型拟合曲线

Figure 6. Four Model Fitting Curves for Alumina to Mo

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图 7 氧化铝对Mo的动态吸附曲线

Figure 7. Dynamic Adsorption Curve of Alumina to Mo

下载: 全尺寸图片幻灯片

图 8 低浓铀条件下氧化铝柱Mo的解吸曲线

Figure 8. Desorption Curve of Mo by Alumina Column under Low Enriched Uranium Conditions

下载: 全尺寸图片幻灯片

表 1 制备球形氧化铝和市售氧化铝参数对比

Table 1. Comparison of Parameters between Prepared Spherical Alumina and Commercial Alumina

材料比表面积/(m²∙ g⁻¹) 孔容/(cm³∙ g⁻¹) 孔径/nm 粒径/μm

制备球形氧化铝 280 0.8 11.8 80~200
市售氧化铝 139 0.19 5.36 50~100

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