PROCESS FOR SEPARATING CERIUM FROM TRIVALENT RARE EARTHS
Patent
·
OSTI ID:4132993
A method for separating cerium from other rare earths is described. An aqueous suspension of hydroxides, carbonates, or oxides of the materials is treated with chlorine in a quantity only slightly higher than that necessary for oxidation of the cerium contained in the mixture. Hydrochloric acid is added until most of the trivalent rare earths are dissolved, while most of the cerium remains insoluble in the form of a basic chloride of quadrivalent cerium. (M.C.G.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-003918
- Assignee:
- DTIE; NSA-18-003918
- Patent Number(s):
- US 3112990
- OSTI ID:
- 4132993
- Country of Publication:
- United States
- Language:
- English
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