Process for the enrichment of europium chloride
AssigneeTh. Goldschmidt AG
InventorEkkehard Greinacher
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Abstract
This invention relates to a process for the enrichment and recovery of europium chloride in a mixture of rare earth halides which comprises adding sufficient alkali, alkaline earth, or rare earth fluoride to a melt of rare earth halides that the melt contains at least 4% by weight of fluoride, electrolyzing the mixture in the melt, separating residual salts, cooling, and washing said residual salts with water.
Claims2
A process for the enrichment of europium chloride in a mixture of rare earth halides which comprises adding sufficient alkali, alkaline earth, or rare earth fluoride to a melt of rare earth halides containing europium chloride that the melt contains at least 4% weight of fluoride,
- electrolyzing the mixture in the melt,
- separating residual salts, cooling,
- and washing said residual salts with water.
Dependencies are inferred from the claim text.