LOW TEMPERATURE PROCESS FOR THE REMOVAL AND RECOVERY OF CHLORIDES AND NITRATES FROM AQUEOUS NITRATE SOLUTIONS
Abstract
A method is described for reducing the chloride content of a solution derived from the dissolution of a stainless steel clad nuclear fuel element with an aqua regia dissolution medium. The solutlon is adjusted to a nitric acid concentration in the range 5 to 10 M and is countercurrently contacted at room temperature with a gaseous oxide of nitrogen selected from NO, NO/sub 2/, N/sub 2/ O/sub 3/, and N/sub 2/O/sub 4/. Chlo ride is recovered from the contacted solution as nitrosyl chloride. After reduction of the chloride content, the solution is then contacted with gaseous NO to reduce the nitric acid molarity to a desired level. (AEC)
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4737980
- Patent Number(s):
- 3075825
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
- NSA Number:
- NSA-17-008272
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; AIR; AQUA REGIA; ATOMIC MODELS; BURNUP; CHLORIDES; COMPRESSORS; COOLANT LOOPS; COUNTER CURRENT; DECOMPOSITION; DIAGRAMS; DOSEMETERS; ECONOMICS; EFFICIENCY; EL-2; FABRICATION; FUEL CANS; G1; GAMMA RADIATION; GAS COOLANT; GASES; GRAPHITE MODERATOR; HEAVY WATER MODERATOR; HYDROCHLORIC ACID; INFRARED RADIATION; LOW TEMPERATURE; MATERIALS TESTING; MEASURED VALUES; MOLECULES; NATURAL URANIUM FUEL; NITRATES; NITRIC ACID; NITROGEN OXIDES; PLUTONIUM; POLYETHYLENES; POWER; POWER PLANTS; PRESSURE; PRODUCTION; RADIATION DOSES; RECOVERY; REPROCESSING; SOLUTIONS; SPECTRA; STAINLESS STEELS; WATER
Citation Formats
Savolainen, J E. LOW TEMPERATURE PROCESS FOR THE REMOVAL AND RECOVERY OF CHLORIDES AND NITRATES FROM AQUEOUS NITRATE SOLUTIONS. United States: N. p., 1963.
Web.
Savolainen, J E. LOW TEMPERATURE PROCESS FOR THE REMOVAL AND RECOVERY OF CHLORIDES AND NITRATES FROM AQUEOUS NITRATE SOLUTIONS. United States.
Savolainen, J E. Tue .
"LOW TEMPERATURE PROCESS FOR THE REMOVAL AND RECOVERY OF CHLORIDES AND NITRATES FROM AQUEOUS NITRATE SOLUTIONS". United States.
@article{osti_4737980,
title = {LOW TEMPERATURE PROCESS FOR THE REMOVAL AND RECOVERY OF CHLORIDES AND NITRATES FROM AQUEOUS NITRATE SOLUTIONS},
author = {Savolainen, J E},
abstractNote = {A method is described for reducing the chloride content of a solution derived from the dissolution of a stainless steel clad nuclear fuel element with an aqua regia dissolution medium. The solutlon is adjusted to a nitric acid concentration in the range 5 to 10 M and is countercurrently contacted at room temperature with a gaseous oxide of nitrogen selected from NO, NO/sub 2/, N/sub 2/ O/sub 3/, and N/sub 2/O/sub 4/. Chlo ride is recovered from the contacted solution as nitrosyl chloride. After reduction of the chloride content, the solution is then contacted with gaseous NO to reduce the nitric acid molarity to a desired level. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 29 00:00:00 EST 1963},
month = {Tue Jan 29 00:00:00 EST 1963}
}
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