Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (4): 40001-040001.doi: 10.11889/j.0253-3219.2018.hjs.41.040001

• REVIEW ARTICLE •     Next Articles

Low pressure distillation technology of molten salt in spent fuel pyroprocessing field

FU Haiying1,2, GENG Junxia1,2, YANG Yang1,2, LUO Yan1,2, DOU Qiang1,2, LI Wenxin1,2, LI Qingnuan1,2   

  1. 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
    2. Center for Thorium Molten Salt Reactor System, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2017-11-21 Revised:2018-01-02 Online:2018-04-10 Published:2018-04-11
  • Supported by:
    Supported by National Natural Science Foundation of China (No.NSFC21771188, No.21601201), Strategic Priority Research Program of Chinese Academy of Sciences (No.XDA02030000), the Frontier Science Key Program of Chinese Academy of Sciences (No.QYZDY-SSWJSC016)

Abstract: Low pressure distillation technology can be used to separate components of spent fuel due to their different volatility. This paper introduced the development of molten salt distillation technology briefly. First, the fluoride salts from molten salt experiment reactor (MSRE) were recovered and reused in Oak Ridge National Laboratory (ORNL) of USA. In the last decades, the distillation technology was used to purify the cathode products after the electrochemical treatment of spent fuel from pressure water reactor (PWR) or fast reactor in USA, Japan, Korea, France and so on. Then the challenges of distillation technology in both the salt recovery and cathode products purity were illustrated and development strategies were suggested. It is further pointed out that distillation separation combined with chemistry reaction may cope with the grave challenges of spent fuel pyroprocessing for thorium molten salt reactor (TMSR).

Key words: Spent fuel, Pyroprocessing, Molten salt, Low pressure distillation

CLC Number: 

  • TL24