SEPARATION OF TECHNETIUM FROM MOLYBDENUM BY SOLVENT EXTRACTION

Journal Article · Sat Feb 01 04:00:00 EST 1964 · Nippon Kagaku Zasshi (Japan) Formerly Nippon Kagaku Kaishi (1921- 47) Merged with Kogyo Kagaku Zasshi to form Nippon Kagaku Kaishi

DOI:https://doi.org/10.1246/nikkashi1948.85.2_128· OSTI ID:4054334

Oka, Y; Kato, T

>The solvent extraction behavior of molybdenum and tracer amount of technetium, from aqueous hydrocflioric acid or from aqueous acidic thiocyanate solution, by diethyl ether, methyl-isobutyl ketone, and tri-n-octyl amine dissolved in cyclohexane was investigated. The procedure for the preparation of carrier-free technetium activity from neutron irradiated MoOs target was esthblished. In HCl-NH/sub 4/NCS aqueous systems, both molybdenum(VI) and technetium(VII) were reduced with excess thiocyanate and formed their thiocyanate complexes at the same time exhibiting their maximum absorbancy at 462 m mu and 505 m mu , respectively, and the complexes were extractable with the above extractants. Liquid amine was especially efficient in the distribution of the complexes. When molybdenum was extracted by diethyl ether from 1 M HCl-1 M NH/ sub 4/NCS solution of neutron irradiated MoO/sub 3/ target, radiochemically pure /sup 99m/Tc was obtained in aqueous solution with final yield of about 80%. (auth)

• Research Organization: Tohoku Univ., Sendai
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-017960
• OSTI ID: 4054334
• 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: 85; ISSN NPKZA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ABSORPTION
ACIDITY
AMINES
BUTYL RADICALS
CARRIER-FREE
CHEMISTRY
COMPLEXES
CYANIDES
CYCLOALKANES
DECONTAMINATION
EFFICIENCY
ETHERS
ETHYL RADICALS
FREQUENCY
HEXANE
HYDROCHLORIC ACID
IMPURITIES
ISOMERS
KETONES
LIGHT
LIQUIDS
METHYL RADICALS
MIXING
MOLYBDENUM
MOLYBDENUM CHLORIDES
MOLYBDENUM COMPLEXES
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NEUTRON BEAMS
ORGANIC SULFUR COMPOUNDS
PHOTOMETRY
PREPARATION
QUANTITY RATIO
RADIOCHEMISTRY
RADIOISOTOPES
REFINING
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SPECTRA
SPECTROSCOPY
STABILITY
TABLES
TARGETS
TECHNETIUM
TECHNETIUM 99
TECHNETIUM CHLORIDES
TECHNETIUM COMPLEXES