CATIONIC EXCHANGE PROCESS FOR THE SEPARATION OF RARE EARTHS

Patent · Tue Feb 16 00:00:00 EST 1960

OSTI ID:4166396

Choppin, G R; Thompson, S G; Harvey, B G

A process for separating mixtures of elements in the lanthanum and actinium series of the periodic table is described. The mixture of elements is dissolved in 0.05 M HCI, wherein the elements exist as tripositive ions. The resulting solution is then transferred to a column of cationic exchange resin and the column eluted with 0.1 to 0.6 M aqueous ammonium alpha hydroxy isobutyrate solution of pH 3.8 to 5.0. The use of ammonium alpha hydroxy isobutyrate as an eluting agent results in sharper and more rapid separations than previously obtainable with eluants such as citric, tartaric, glycolic, and lactic acids.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-14-015718
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 2925431
• OSTI ID: 4166396
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-60
• Country of Publication: United States
• Language: English

Related Subjects

CHEMISTRY
ACIDITY
ACTINIUM
ALCOHOLS
AMMONIUM COMPOUNDS
BUTYRIC ACID
CITRIC ACID
HYDROCHLORIC ACID
ION EXCHANGE
LANTHANUM
ORGANIC ACIDS
ORGANIC COMPOUNDS
RARE EARTHS
RESINS
SEPARATION PROCESSES
SOLUTIONS
SOLVENTS