EXTRACTION OF THORIUM AND LANTHANONS FROM MONAZITE
Patent
·
OSTI ID:4039488
A process for separating thorium and the rare earths from a filtered acidic extract of monazite is described. The process consists of adding sodium chloride or potassium chloride and hydrochloric acid to the filtered acidic extract to precipitate the thorium and rare earths in the form of sulfate, and removing the resulting precipitate containing thorium and rare earths. The sulfuric acid concen- tration in the filtrate should be from 4.5 to 5.5 N. The alkali metal chloride should be added in an amount such that the filtrate contains from 200 to 400 g/l of chloride. (N.W.R.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-023584
- OSTI ID:
- 4039488
- Report Number(s):
- GB 871107
- Country of Publication:
- United Kingdom
- Language:
- English
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