Separation of thorium, rare earth elements and scandium by thiocyanate-tributylphosphate extraction system

Journal Article · Mon Dec 31 23:00:00 EST 1962 · Bunseki Kagaku (Japan Analyst)

DOI:https://doi.org/10.2116/bunsekikagaku.12.169· OSTI ID:4153775

YOSHIDA, Hiroyuki

Using the system of thiocyanate-TBP-diluent, thorium, rare earth elements, and scandium can be easily separated by selecting suitable diluents. For example, thorium (lg) can be separated from small amounts of rare earth elements (10 μg) in the system of 15% TBP-carbon tetrachloride/2M ammonium thiocyanate. Scandium ( approximates 100 mu g) can be separated from thorium ( approximates 400 mg) using the extraction system of 10% TBP-chloroform/1M ammonium thiocyanate. The back extraction of the elements extracted into the organic phase is accomplished by 1 approximates 3N hydrochloric or nitric acid.

• Research Organization: Japan Atomic Energy Research Inst., Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-001807
• OSTI ID: 4153775
• Journal Information: Bunseki Kagaku (Japan Analyst), Journal Name: Bunseki Kagaku (Japan Analyst) Journal Issue: 2 Vol. 12; ISSN 0525-1931
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AMMONIUM COMPOUNDS
BUTYL PHOSPHATES
CARBON TETRACHLORIDE
CHLOROFORM
CYANIDES
HYDROCHLORIC ACID
NITRIC ACID
ORGANIC CHLORINE COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RARE EARTHS
SCANDIUM
SEPARATION PROCESSES
SOLVENT EXTRACTION
THORIUM