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Title: SEPARATING HAFNIUM FROM ZIRCONIUM

Patent ·
OSTI ID:4314218

Substantially complete separation of zirconium from hafnium may be obtained by elution of ion exchange material, on which compounds of the elements are adsorbed, with an approximately normal solution of sulfuric acid. Preferably the acid concentration is between 0.8 N amd 1.2 N, amd should not exceed 1.5 N;. Increasing the concentration of sulfate ion in the eluting solution by addition of a soluble sulfate, such as sodium sulfate, has been found to be advantageous. The preferred ion exchange materials are sulfonated polystyrene resins such as Dowex 50,'' and are preferably arranged in a column through which the solutions are passed.

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-12-004584
Assignee:
U.S. Atomic Energy Commission
Patent Number(s):
US 2759792
OSTI ID:
4314218
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English