核化学与放射化学2018，Vol.40Issue(2)：132-138,7.DOI:10.7538/hhx.2018.YX.2017009
用活性碳纤维从99Mo中提取99Tcm
Extraction of 99TcmFrom 99Mo by Activated Carbon Fiber
阳国桂 1胡骥2
作者信息
- 1. 中国原子能科学研究院 同位素研究所,北京 102413
- 2. 原子高科股份有限公司,北京 102413
- 折叠
摘要
Abstract
Using chromatography for extracting medical isotope 99Tcmfrom 99Mo is a poten-tial way to deal with the current fission-based 99Mo supply crisis.The process and properties of activated carbon fiber separating 99Tcmfrom mother nuclide 99Mo were studied by static and dynamic adsorption experiments.The results show that activated carbon fiber can selec-tively adsorb pertechnetate ions in 3 mol/L NaOH solution.The equilibrium time is about 500 s,and the adsorption,with 32.47 mg/g of saturated adsorption capacity,follows the pseudo 2nd order kinetic model.In the dynamic adsorption elution experiment,the break-through volume of 1.0 g activated carbon fiber chromatographic column is 70 mL,and per-technetate is effectively eluted from activated carbon fiber chromatographic column in 40 mL water.The research results show that chromatographic column of activated carbon fiber can be used for separation of technetium from molybdenum without organic solvent.The yield of technetium is 98%,and residual concentration of molybdenum is 3.5 mg/L in eluates.关键词
活性碳纤维/吸附/锝/钼Key words
activated carbon fiber/adsorption/technetium/molybdenum分类
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阳国桂,胡骥..用活性碳纤维从99Mo中提取99Tcm[J].核化学与放射化学,2018,40(2):132-138,7.
