STUDIES ON SEPARATION OF ZIRCONIUM AND HAFNIUM AND THEIR MICRODETERMINATION. VI. MUTUAL SPEARATION OF ZIRCONIUM AND HAFNIUM BY SOLVENT EXTRACTION WITH CYCLOHEXANONE

Journal Article · Sat Oct 01 04:00:00 EDT 1960 · Nippon Kagaku Zasshi (Japan) Formerly Nippon Kagaku Kaishi (1921- 47) Merged with Kogyo Kagaku Zasshi to form Nippon Kagaku Kaishi

OSTI ID:4082929

Hoshino, Y

Cyclohexanone was found to be a very excellent extraction solvent for the mutual separation of zircorium and hafnium. The distribution ratio (D: the ratio of the concentration of zirconium or hafnium in orgaric phase to that in aqueous phase) and the separation factor (the ratio of D/sub Hf//D/sub Zr/) in this extraction were measured chiefly at 30 deg C. Results: Cy clohexanone as an extraction solvent is superior to methyl isobutyl ketone or diethyl ether in the following points: (1) It has high values of separation factor (maximum, about 120) and high distribution ratio (approximately 10 times the value of methyl isobutyl ketone); (2) the influence of ammonium sulfate concentration in aqueous phase on the separation factor is comparatively small; (3) the separation factor increases at lower temperatures; and (4) thiocyanic acid dissolved in cyclohexanone is relatively stable. (auth)

• Research Organization: Tokyo InsT. of Tech.
• NSA Number: NSA-15-010896
• OSTI ID: 4082929
• Journal Information: Nippon Kagaku Zasshi (Japan) Formerly Nippon Kagaku Kaishi (1921- 47) Merged with Kogyo Kagaku Zasshi to form Nippon Kagaku Kaishi, Journal Name: Nippon Kagaku Zasshi (Japan) Formerly Nippon Kagaku Kaishi (1921- 47) Merged with Kogyo Kagaku Zasshi to form Nippon Kagaku Kaishi Vol. Vol: 81; ISSN NPKZA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ACIDS
AMMONIUM COMPOUNDS
BUTYL RADICALS
CHEMISTRY
CYANIDES
CYCLOALKANES
DISTRIBUTION
ETHERS
HAFNIUM
HEXANE
KETONES
MEASURED VALUES
METHYL RADICALS
ORGANIC SULFUR COMPOUNDS
QUANTITATIVE ANALYSIS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SULFATES
TEMPERATURE
THIOCYANIC ACID
THIOCYANIDES
ZIRCONIUM