Research Progress on Application of Salt-free Reagent in Purex Process

The progress of organic salt-free reagents using in Purex process in China is reviewed and summarized in this paper. The thermodynamics, kinetics between salt-free reagents and Pu(Ⅳ), Np(Ⅵ) and HNO₂ are also reviewed briefly, as well as the process application of several reagents. Furthermore, the application prospect and development direction are analyzed and discussed.