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SEPARATION OF THORIUM FROM RARE EARTHS BY MEANS OF PYRIDINE AND ITS NITRATE (in Russian)

Journal Article · · Zhur. Anal. Khim.
OSTI ID:4324442

Thorium is quantitatively precipltated by means of a mixture of pyridine and its nitrate at pH 4.1 to 4.2. The cosgulation and settiing of the precipitate can be speeded up by ammonium nitrate. Thorium hydroxide precipitates in a very compact state and has little absorptive capacity. Yttrium, lanthanum, trivalent cerium, neodymium, praseodymium, erbium, samarium, and ytterbium stay in the solution. The separation of thorium is complete and does not require reprecipitation. (tr-auth)

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-12-015431
OSTI ID:
4324442
Journal Information:
Zhur. Anal. Khim., Journal Name: Zhur. Anal. Khim. Vol. Vol: 13
Country of Publication:
Country unknown/Code not available
Language:
Russian