CATIONIC EXCHANGE PROCESS FOR THE SEPARATION OF RARE EARTHS
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4166396
- Patent Number(s):
- 2925431
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- NSA Number:
- NSA-14-015718
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 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
Citation Formats
Choppin, G R, Thompson, S G, and Harvey, B G. CATIONIC EXCHANGE PROCESS FOR THE SEPARATION OF RARE EARTHS. United States: N. p., 1960.
Web.
Choppin, G R, Thompson, S G, & Harvey, B G. CATIONIC EXCHANGE PROCESS FOR THE SEPARATION OF RARE EARTHS. United States.
Choppin, G R, Thompson, S G, and Harvey, B G. Tue .
"CATIONIC EXCHANGE PROCESS FOR THE SEPARATION OF RARE EARTHS". United States.
@article{osti_4166396,
title = {CATIONIC EXCHANGE PROCESS FOR THE SEPARATION OF RARE EARTHS},
author = {Choppin, G R and Thompson, S G and Harvey, B G},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {2}
}
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