Simple Mass Transfer Application Model for PUREX Process Chemical Experimentation
In the chemical experimentation stage of spent fuel reprocessing,it is difficult to establish clear acceptance criteria for acid transfer balance due to the difference of equipment selection and installation accuracy.In order to improve the standardization level of chemical experimentation,acid mass transfer experiments were carried out with the actual equipment of a nuclear chemical project,and the engineering empirical equation of the distribution coefficient under the pure acid system was determined,which reached a peak value of 0.223 when the concentration of aqueous phase nitric acid was 2.09 mol/L after extraction equilibrium.Based on the empirical equation,a simple mass transfer application model for chemical experimentation of PUREX process was established.Finally,the acceptance criterion of acid mass transfer balance suitable for a nuclear chemical project was developed.
purexchemical experimentationspent fuelreprocessingmass transfer
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