| 反应堆一回路不锈钢管道沉积物制备及去污的模拟研究 |
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| 引用本文： | 李烨,谭昭怡,龙兴贵.反应堆一回路不锈钢管道沉积物制备及去污的模拟研究[J].化学研究与应用,2021,33(3):554-561. |
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| 作者姓名： | 李烨 谭昭怡 龙兴贵 |
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| 作者单位： | 中国工程物理研究院核物理与化学研究所 四川 绵阳 621900 |
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| 摘 要： | 反应堆一回路管道通常以不锈钢为基材,长期运行中面临沉积物的产生及大量积累的问题.本文通过溶液反应模拟沉积物的产生,采用的水溶液中含有Ca2+、Mg2+,以及裂片核素137 Cs和活化核素60 Co的稳定同位素阳离子133 Cs+和59 Co2+,CO32-、SO42-等阴离子,以及基材氧化物Fe2 O3等;开展了沉积物...
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| 关 键 词： | 反应堆一回路 沉积物 去污处理 模拟研究 基片腐蚀 |
Simulation study on sediment preparation and decontamination on treatment of stainless-steel pipeline in primary circuit of reactor |
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| LI Ye,TAN Zhao-yi,LONG Xing-gui.Simulation study on sediment preparation and decontamination on treatment of stainless-steel pipeline in primary circuit of reactor[J].Chemical Research and Application,2021,33(3):554-561. |
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| Authors: | LI Ye TAN Zhao-yi LONG Xing-gui |
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| Institution: | (Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China) |
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| Abstract: | The primary pipeline of the reactor is usually made of stainless steel,which has long faced with the problem of sediments generation and accumulation in operation.In this paper,the aqueous solution contains cations such as Ca2+and Mg2+,anions such as CO32-and SO42-,substrate oxide Fe2O3,and stable isotope cations of split nuclide137Cs and activated nuclide60Co,133Cs+and59Co2+,etc.The generation of sediment is simulated by solution reaction,and the solution decontamination treatment is carried out.The results of experiment show that the sediment contains calcium,magnesium,cobalt,cesium and iron.The malic acid and citric acid two-component decontamination system,the dissolution rate of sediment can reach 98.44%.Moreover,the decontamination solution of weak acid complex system has little corrosion effect on stainless steel matrix. |
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| Keywords: | primary circuit of reactor sediment decontamination treatment simulator investigation substrate corrosion |
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