Separation of hafnium from zirconium and their determination: separation by anion-exchange

Journal Article · Thu Nov 01 04:00:00 EST 1962 · Journal of Research of the National Bureau of Standards, Section A: Physics and Chemistry

DOI:https://doi.org/10.6028/jres.066A.053· OSTI ID:4753100

Machlan, Lawrence A.; Hague, John L.

A procedure is described for the separatlon of Rf from Zr and for their individual determination. The sample is dissolved in sulfuric and hydrofluoric acids and the hydrofluoric acid removed by fuming. After dilution with water, the solution is tnansferred to a column containing a strong quaternary amine anion-exchange resin (Dowex-1). The Hf is eluted with diluted (3.5% by vol.) sulfuric acid solution. Zr is removed by eluti on with 10% by vol. sulfuric acid solution. The elements are precipitated with cupferron, ignited, and weighed as the oxides. For samples containing from 20 to 80% Zr, a second separation of the Hf fraction using the column is necessary.

• Research Organization: Originating Research Org. not identified
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-004633
• OSTI ID: 4753100
• Journal Information: Journal of Research of the National Bureau of Standards, Section A: Physics and Chemistry, Journal Name: Journal of Research of the National Bureau of Standards, Section A: Physics and Chemistry Journal Issue: 6 Vol. 66A; ISSN 0022-4332
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AMINES
CHEMISTRY
COMBUSTION
CUPFERRON
DOWEX
HAFNIUM
HAFNIUM OXIDES
HYDROFLUORIC ACID
ION EXCHANGE
ION EXCHANGE MATERIALS
LEACHING
PRECIPITATION
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
SULFURIC ACID
VAPORS
WATER
WEIGHT
ZIRCONIUM
ZIRCONIUM OXIDES