ANOMALOUS EXTRACTION OF ZIRCONIUM, NIOBIUM, AND RUTHENIUM BY TRIBUTYL PHOSPHATE
The abnormally high extraction of Zr, Nb, and Ru by 30% tributyl phosphate, even when nearly saturated with uranyl nitrate, is attributed to the presence of an organophilic carrier that is present in the initial HNO/sub 3/ solutions of irradiated U. The carrier remains in the organic phase making the desorption of these fission products from the organic phase a very slow process. Some evidence indicated that the carrier may be hydrated silica. Extraction of Zr, Nb, and Ru by TBP was reduced greatly by adding macroamounts of Nb compounds to the feed and precipitating Nb/sub 2/O/sub 5/ prior to solvent extraction. (auth)
- Research Organization:
- Du Pont de Nemours (E.I.) & Co. Savannah River Lab., Augusta, Ga.
- DOE Contract Number:
- AT(07-2)-1
- NSA Number:
- NSA-13-011686
- OSTI ID:
- 4276020
- Report Number(s):
- DP-308
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
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