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Title: CONCENTRATION OF Pu USING AN IODATE PRECIPITATE

Abstract

A method is given for separating plutonium from lanthanum in a lanthanum fluoride carrier precipitation process for the recovery of plutonium values from an aqueous solution. The carrier precipitation process includes the steps of forming a lanthanum fluoride precipi- . tate, thereby carrying plutonium out of solution, metathesizing the fluoride precipitate to a hydroxide precipitate, and then dissolving the hydroxide precipitate in nitric acid. In accordance with the invention, the nitric acid solution, which contains plutonium and lanthanum, is made 0.05 to 0.15 molar in potassium iodate. thereby precipitating plutonium as plutonous iodate and the plutonous iodate is separated from the lanthanum- containing supernatant solution.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4184455
Patent Number(s):
2926067
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-015719
NSA Number:
NSA-14-015719
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; HYDROXIDES; IODATES; IODIC ACID; LANTHANUM; LANTHANUM FLUORIDES; MINERAL ACIDS; NITRIC ACID; PLUTONIUM; PLUTONIUM COMPOUNDS; POTASSIUM COMPOUNDS; PRECIPITATION; SEPARATION PROCESSES; SOLUTIONS; USES; WATER

Citation Formats

Fries, B.A. CONCENTRATION OF Pu USING AN IODATE PRECIPITATE. United States: N. p., 1960. Web.
Fries, B.A. CONCENTRATION OF Pu USING AN IODATE PRECIPITATE. United States.
Fries, B.A. Tue . "CONCENTRATION OF Pu USING AN IODATE PRECIPITATE". United States.
@article{osti_4184455,
title = {CONCENTRATION OF Pu USING AN IODATE PRECIPITATE},
author = {Fries, B.A.},
abstractNote = {A method is given for separating plutonium from lanthanum in a lanthanum fluoride carrier precipitation process for the recovery of plutonium values from an aqueous solution. The carrier precipitation process includes the steps of forming a lanthanum fluoride precipi- . tate, thereby carrying plutonium out of solution, metathesizing the fluoride precipitate to a hydroxide precipitate, and then dissolving the hydroxide precipitate in nitric acid. In accordance with the invention, the nitric acid solution, which contains plutonium and lanthanum, is made 0.05 to 0.15 molar in potassium iodate. thereby precipitating plutonium as plutonous iodate and the plutonous iodate is separated from the lanthanum- containing supernatant solution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {2}
}