SELECTIVE PRECIPITATION OF URANIUM PHOSPHATE
Patent
·
OSTI ID:4172287
A process is given for recovering U from acid leach liquors by selective precipitation as phosphate. In an example, wet ore residue from which precious metals have been extracted by cyanide leaching was treated with H/sub 2/SO/sub 4/ and MnO/sub 2/ to leach the U out and oxidize Fe to Fe/sup 3+/ A limestone slurry was added to precipitate Fe, after which the pregnant liquor was filtered off. The solution was reduced by Fe powder and H/sub 2/SO/sub 4/ and tetrasodiumpyrophosphate added to precipitate U. The precipitate was washed with water and the wash recycled. Another example is given to describe the process as carried out on a plant scale. (T.R.H.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-14-013807
- OSTI ID:
- 4172287
- Report Number(s):
- GB 833624
- Country of Publication:
- United Kingdom
- Language:
- English
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