EQUILIBRIUM DISTRIBUTION STUDIES OF DYSPROSIUM NITRATE-ERBIUM NITRATE- NITRIC ACID-TRIBUTYL PHOSPHATE SYSTEMS
Separate equilibrium data were obtained for the distribution of Dy(NO/ sub 3/)/sub 3/- HNO/sub 3/, Er(NO/sub 3/)/sub 3/- HNO/sub 3/, and Dy(NO/sub 3/)< i3>iEr(NO/sub 3/)/sub 3/-HNO/sub 3/ systems between water and tributyl phosphate. Equilibrium data for the Dy(NO/sub 3/)/sub 3/- HNO/sub 3/ and Er(NO/sub 3/)/sub 3/ -HNO/sub 3/ systems were correlated in such a manner that the total distribution of solutes and nitric acid could be found for the Dy(NO/sub 3/)/sub 3/- Er(NO/sub 3/)/sub 3/- HNO/sub 3/ system. The separation factor between Dy(NO/sub 3/)/sub 3/ and Er(NO/sub 3/)/sub 3/ is shown as a function of the total molality of the aqueous phase. A method is presented for predicting the concentrations of Dy(NO/ sub 3/)/sub 3/, Er(NO/sub 3/)/sub 3/, and HNO/sub 3/ in an organic phase of tributyl phosphate from their concentrations in the aqueous phase at equilibrium, and the results of the method are compared with experimental data. (D.L.C.)
- Research Organization:
- Ames Lab., Ames, Iowa (USA)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-7405-ENG-82
- NSA Number:
- NSA-15-032233
- OSTI ID:
- 4835129
- Report Number(s):
- IS-332
- Country of Publication:
- United States
- Language:
- English
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