EXTRACTION AND SEPARATION OF ZIRCONIUM AND HAFNIUM BY MEANS OF LIQUID ANIONIC EXCHANGERS IN A HYDROCHLORIC ACID MEDIUM. II. EXTRACTION WITH TRI-N-OCTYLAMINE

Journal Article · Tue Dec 01 04:00:00 EST 1959 · Energia nuclear (Milan)

OSTI ID:4216747

Cerrai, E; Testa, C

The extraction behavior of tri-n-octylamine (TNOA) has been investigated ior zirconium and hafnium. The separation factors have also been determined in many operating conditions. The effects have been investigated of: hydrochloric acid molarity, type of amine diluent, Zr and Hf concentration, amine concentration and amount, contact time, temperature, chloride ion concentration, addition of some acid as H/sub 2/SO/sub 4/, HClO/sub 4/, CH/sub 3/COOH, and HNO/ sub 3/. A se paration experiment was made in which a mixture of 97.8% Zr and 2.2% Hf (W/W) was extracted with 0.2 M TNOAcyclohexane in 8 M HCl + 0.7 M HNO/sub 3/. With a single contact the hafnium content was brought down to 0.12 deg % with a zirconium yield of 75%. (auth)

• Research Organization: Centro Informazioni Studi Esperienze, Milan
• NSA Number: NSA-14-005267
• OSTI ID: 4216747
• Journal Information: Energia nuclear (Milan), Journal Name: Energia nuclear (Milan) Vol. Vol: 6
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETIC ACID
ALKYL RADICALS
AMINES
BEHAVIOR
CHEMISTRY
CHLORIDES
CYCLOALKANES
HAFNIUM
HEXANE
HYDROCHLORIC ACID
ION EXCHANGE MATERIALS
IONS
LIQUIDS
NITRIC ACID
PERCHLORIC ACID
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SULFURIC ACID
TEMPERATURE
USES
ZIRCONIUM