SEPARATION OF RARE EARTHS BY MEANS OF SMALL COLUMNS OF KEL-F SUPPORTING DI(2-ETHYLHEXYL)ORTHOPHOSPHORIC ACID

Journal Article · Thu Aug 01 00:00:00 EDT 1963 · Journal of Inorganic and Nuclear Chemistry (England) Merged with Inorg. Nucl. Chem. Lett. to form Polyhedron

DOI:https://doi.org/10.1016/0022-1902(63)80040-8· OSTI ID:4681020

Cerrai, E; Testa, C

The tracer level separation of rare earth elements was achieved by using a small column (3 mm ID x 140 mm height) of Kel-- F powder (polytrichlorofluoroethylene) loaded with di(2-ethylhexyl)orthophosphoric acid (HDEHP). A suitable column preparation procedure was determined by investigating the Eu--Tb separation. The column was operated at 85 plus or minus 1 deg C and elution was carried out with a solution of hydrochloric acid having the proper concentration. For the resolution of mixtures containing more than two lanthanide elements the gradient elution method was used. Separations reported are: Eu-- Tb, Eu-- Gd-- Tb-- Sm, La-Ce-- Pr-- Nd-- Pm-- Sm-- Eu, La-- Pr-- Sm-- Eu-- Gd-- Tb-- Dy-Ho-- Er-- Tm-- Yb-- Lu, and Tb-- Yb. (auth)

• Research Organization: CISE, Milan
• NSA Number: NSA-17-034060
• OSTI ID: 4681020
• Journal Information: Journal of Inorganic and Nuclear Chemistry (England) Merged with Inorg. Nucl. Chem. Lett. to form Polyhedron, Vol. Vol: 25; Other Information: Orig. Receipt Date: 31-DEC-63
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
ALKYL RADICALS
CERIUM
DYSPROSIUM
ERBIUM
EUROPIUM
EXTRACTION COLUMNS
GADOLINIUM
HOLMIUM
HYDROCHLORIC ACID
LANTHANUM
LEACHING
LUTETIUM
MIXING
NEODYMIUM
ORGANIC FLUORINE COMPOUNDS
PHOSPHORIC ACID
POWDERS
PRASEODYMIUM
PROMETHIUM
RARE EARTHS
SAMARIUM
SEPARATION PROCESSES
SOLUTIONS
TERBIUM
THULIUM
TRACE AMOUNTS
YTTERBIUM