Nitric acid recovery from waste solutions
Abstract
The recovery of nitric acid from aqueous nitrate solutions containing fission products as impurities is described. It is desirable to subject such solutions to concentration by evaporation since nitric acid is regenerated thereby. A difficulty, however, is that the highly radioactive fission product ruthenium is volatilized together with the nitric acid. It has been found that by adding nitrous acid, ruthenium volatilization is suppressed and reduced to a negligible degree so that the distillate obtained is practically free of ruthenium.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4215794
- Patent Number(s):
- 2882129
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
- NSA Number:
- NSA-13-022046
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; CHEMICAL REACTIONS; CHEMICALS; DISTILLATION; ENRICHMENT; EVAPORATION; FISSION PRODUCTS; IMPURITIES; MINERAL ACIDS; MIXING; NITRATES; NITRIC ACID; NITROGEN COMPOUNDS; NITROUS ACID; OPERATION; OXYGEN COMPOUNDS; PATENT; PERFORMANCE; RADIATION DOSES; RADIOACTIVITY; RECOVERY; REDUCTION; RUTHENIUM COMPOUNDS; SOLUTIONS; VOLATILITY; WASTE PROCESSING; WASTE SOLUTIONS; WATER
Citation Formats
Wilson, A. S.. Nitric acid recovery from waste solutions. United States: N. p., 1959.
Web.
Wilson, A. S.. Nitric acid recovery from waste solutions. United States.
Wilson, A. S.. Tue .
"Nitric acid recovery from waste solutions". United States. https://www.osti.gov/servlets/purl/4215794.
@article{osti_4215794,
title = {Nitric acid recovery from waste solutions},
author = {Wilson, A. S.},
abstractNote = {The recovery of nitric acid from aqueous nitrate solutions containing fission products as impurities is described. It is desirable to subject such solutions to concentration by evaporation since nitric acid is regenerated thereby. A difficulty, however, is that the highly radioactive fission product ruthenium is volatilized together with the nitric acid. It has been found that by adding nitrous acid, ruthenium volatilization is suppressed and reduced to a negligible degree so that the distillate obtained is practically free of ruthenium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 14 00:00:00 EST 1959},
month = {Tue Apr 14 00:00:00 EST 1959}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.