Process for extracting technetium from alkaline solutions
Abstract
A process for extracting technetium values from an aqueous alkaline solution containing at least one alkali metal hydroxide and at least one alkali metal nitrate, the at least one alkali metal nitrate having a concentration of from about 0.1 to 6 molar. The solution is contacted with a solvent consisting of a crown ether in a diluent for a period of time sufficient to selectively extract the technetium values from the aqueous alkaline solution. The solvent containing the technetium values is separated from the aqueous alkaline solution and the technetium values are stripped from the solvent.
- Inventors:
-
- Oak Ridge, TN
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 870037
- Patent Number(s):
- 5443731
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; extracting; technetium; alkaline; solutions; values; aqueous; solution; containing; alkali; metal; hydroxide; nitrate; concentration; molar; contacted; solvent; consisting; crown; diluent; period; time; sufficient; selectively; extract; separated; stripped; aqueous alkaline; alkaline solutions; aqueous alkali; technetium values; solvent containing; time sufficient; solution containing; alkali metal; metal hydroxide; alkaline solution; metal nitrate; selectively extract; extracting technetium; /210/423/
Citation Formats
Moyer, Bruce A, Sachleben, Richard A, and Bonnesen, Peter V. Process for extracting technetium from alkaline solutions. United States: N. p., 1995.
Web.
Moyer, Bruce A, Sachleben, Richard A, & Bonnesen, Peter V. Process for extracting technetium from alkaline solutions. United States.
Moyer, Bruce A, Sachleben, Richard A, and Bonnesen, Peter V. Sun .
"Process for extracting technetium from alkaline solutions". United States. https://www.osti.gov/servlets/purl/870037.
@article{osti_870037,
title = {Process for extracting technetium from alkaline solutions},
author = {Moyer, Bruce A and Sachleben, Richard A and Bonnesen, Peter V},
abstractNote = {A process for extracting technetium values from an aqueous alkaline solution containing at least one alkali metal hydroxide and at least one alkali metal nitrate, the at least one alkali metal nitrate having a concentration of from about 0.1 to 6 molar. The solution is contacted with a solvent consisting of a crown ether in a diluent for a period of time sufficient to selectively extract the technetium values from the aqueous alkaline solution. The solvent containing the technetium values is separated from the aqueous alkaline solution and the technetium values are stripped from the solvent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}
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Works referenced in this record:
Srex: a Newprocess for the Extraction and Recovery of Strontium from Acidic Nuclear Waste Streams
journal, February 1991
- Horwitz, E. Philip; Dietz, Mark L.; Fisher, Dan E.
- Solvent Extraction and Ion Exchange, Vol. 9, Issue 1
Extraction of technetium by crown ethers and cryptands
journal, March 1986
- Jalhoom, M. G.
- Journal of Radioanalytical and Nuclear Chemistry Letters, Vol. 104, Issue 3