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Title: IMPROVED PROCESS OF PLUTONIUM CARRIER PRECIPITATION

Abstract

This patent relates to an improvement in the bismuth phosphate process for separating and recovering plutonium from neutron irradiated uranium, resulting in improved decontamination even without the use of scavenging precipitates in the by-product precipitation step and subsequently more complete recovery of the plutonium in the product precipitation step. This improvement is achieved by addition of fluomolybdic acid, or a water soluble fluomolybdate, such as the ammonium, sodium, or potassium salt thereof, to the aqueous nitric acid solution containing tetravalent plutonium ions and contaminating fission products, so as to establish a fluomolybdate ion concentration of about 0.05 M. The solution is then treated to form the bismuth phosphate plutonium carrying precipitate.

Inventors:
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4232376
Patent Number(s):
US 2892676
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-13-022167
NSA Number:
NSA-13-022167
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; AMMONIUM COMPOUNDS; BISMUTH PHOSPHATES; CARRIERS; CHEMICAL REACTIONS; COMPOUNDS; DECONTAMINATION; FISSION PRODUCTS; FUELS; IONS; IRRADIATION; MINERAL ACIDS; MOLYBDENUM FLUORIDES; NEUTRON BEAMS; NITRIC ACID; PATENT; PERFORMANCE; PLUTONIUM; PLUTONIUM COMPOUNDS; POTASSIUM COMPOUNDS; PRECIPITATION; QUANTITY RATIO; RECOVERY; REPROCESSING; SALTS; SEPARATION PROCESSES; SODIUM COMPOUNDS; SOLUBILITY; SOLUTIONS; URANIUM; WATER

Citation Formats

Faris, B.F.. IMPROVED PROCESS OF PLUTONIUM CARRIER PRECIPITATION. United States: N. p., 1959. Web.
Faris, B.F.. IMPROVED PROCESS OF PLUTONIUM CARRIER PRECIPITATION. United States.
Faris, B.F.. Tue . "IMPROVED PROCESS OF PLUTONIUM CARRIER PRECIPITATION". United States. doi:.
@article{osti_4232376,
title = {IMPROVED PROCESS OF PLUTONIUM CARRIER PRECIPITATION},
author = {Faris, B.F.},
abstractNote = {This patent relates to an improvement in the bismuth phosphate process for separating and recovering plutonium from neutron irradiated uranium, resulting in improved decontamination even without the use of scavenging precipitates in the by-product precipitation step and subsequently more complete recovery of the plutonium in the product precipitation step. This improvement is achieved by addition of fluomolybdic acid, or a water soluble fluomolybdate, such as the ammonium, sodium, or potassium salt thereof, to the aqueous nitric acid solution containing tetravalent plutonium ions and contaminating fission products, so as to establish a fluomolybdate ion concentration of about 0.05 M. The solution is then treated to form the bismuth phosphate plutonium carrying precipitate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 30 00:00:00 EDT 1959},
month = {Tue Jun 30 00:00:00 EDT 1959}
}