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Title: NITRIC ACID RECPVERY FROM WASTE COLUTIONS

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 acids ruthenium volatilization is suppressed and reduced to a negligible degree so that the distillate obtained is practically free of rutheniuim.

Inventors:
Issue Date:
OSTI Identifier:
4242077
Patent Number(s):
2882129
Assignee:
U.S. Atomic Energy Commission
NSA Number:
NSA-13-015137
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; CHEMICAL REACTIONS; DISTILLATION; ENRICHMENT; EVAPORATION; FISSION PRODUCTS; MINERAL ACIDS; MIXING; NITRATES; NITRIC ACID; OPERATION; PATENT; PERFORMANCE; RADIATION DOSES; RADIOACTIVITY; RECOVERY; REDUCTION; RUTHENIUM COMPOUNDS; SOLUTIONS; VOLATILITY; WASTE PROCESSING; WASTE SOLUTIONS; WATER

Citation Formats

Wilson, A S. NITRIC ACID RECPVERY FROM WASTE COLUTIONS. United States: N. p., 1959. Web.
Wilson, A S. NITRIC ACID RECPVERY FROM WASTE COLUTIONS. United States.
Wilson, A S. Tue . "NITRIC ACID RECPVERY FROM WASTE COLUTIONS". United States.
@article{osti_4242077,
title = {NITRIC ACID RECPVERY FROM WASTE COLUTIONS},
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 acids ruthenium volatilization is suppressed and reduced to a negligible degree so that the distillate obtained is practically free of rutheniuim.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {4}
}