EXTRACTION OF RARE EARTHS AND THORIUM FROM SULFURIC ACID BY DIISOBUTYLPHOSPHORIC ACID (in Russian)
Journal Article
·
· Zhur. NeorgaN. Khim.
OSTI ID:4158166
Solvent extraction of Ce(III), Er, Ho, Gd, La, Nd, Sm, Tb, Y, Yb and Th from sulfuric acid by a 0.148 molar solution of diisobutylphosphoric acid in kerosene was analyzed. It was found that each of the rare earths and thorium are fully separated at a certain concentration of sulfuric acid. Extractability of rare earth and thorium dibutylphosphates is a function of their solubility and stability in sulfuric acid. Comparisons of stability according to their equilibrium constants of the reaction indicated equilibrium constant variability from lg K/sub La/ = 17.1 to lg K/sub Yb/= 21.1. Equilibrium constant for thorium was lg K/sub Th/= 24.5. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-001829
- OSTI ID:
- 4158166
- Journal Information:
- Zhur. NeorgaN. Khim., Journal Name: Zhur. NeorgaN. Khim. Vol. Vol: 8
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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