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U.S. Department of Energy
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SEPARATION OF PLUTONIUM FROM LANTHANUM BY CHELATION-EXTRACTION

Patent ·
OSTI ID:4282085

Plutonium can be separated from a mixture of plutonlum and lanthanum in which the lanthanum to plutonium molal ratio ls at least five by adding the ammonium salt of N-nitrosoarylhydroxylamine to an aqueous solution having a pH between about 3 and 0.2 and containing the plutonium in a valence state of at least +3, to form a plutonium chelate compound of N-nitrosoarylhydroxylamine. The plutonium chelate compound may be recovered from the solution by extracting with an immiscible organic solvent such as chloroform.

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-13-008429
Assignee:
U.S. Atomic Energy Commission
Patent Number(s):
US 2863892
OSTI ID:
4282085
Country of Publication:
United States
Language:
English