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Title: RECONDITIONING FUEL ELEMENTS

Abstract

A process is given for decanning fuel elements that consist of a uranium core, an intermediate section either of bronze, silicon, Al-Si, and uranium silicide layers or of lead, Al-Si, and uranium silicide layers around said core, and an aluminum can bonded to said intermediate section. The aluminum can is dissolved in a solution of sodium hydroxide (9 to 20 wt%) and sodium nitrate (35 to 12 wt %), and the layers of the intermediate section are dissolved in a boiling sodium hydroxide solution of a minimum concentration of 50 wt%. (AEC) A method of selectively reducing plutonium oxides and the rare earth oxides but not uranium oxides is described which comprises placing the oxides in a molten solvent of zinc or cadmium and then adding metallic uranium as a reducing agent. (AEC)

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4844172
Patent Number(s):
3022160
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-16-008824
NSA Number:
NSA-16-008824
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-62
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; ALUMINUM; ALUMINUM ALLOYS; BOILING; BRONZE; COPPER ALLOYS; FUEL CANS; FUEL ELEMENTS; LAYERS; LEAD; QUANTITY RATIO; REPROCESSING; SILICIDES; SILICON; SODIUM HYDROXIDES; SODIUM NITRATES; SOLUTIONS; TIN ALLOYS; URANIUM; URANIUM COMPOUNDS

Citation Formats

Brandt, H.L. RECONDITIONING FUEL ELEMENTS. United States: N. p., 1962. Web.
Brandt, H.L. RECONDITIONING FUEL ELEMENTS. United States.
Brandt, H.L. Tue . "RECONDITIONING FUEL ELEMENTS". United States.
@article{osti_4844172,
title = {RECONDITIONING FUEL ELEMENTS},
author = {Brandt, H.L.},
abstractNote = {A process is given for decanning fuel elements that consist of a uranium core, an intermediate section either of bronze, silicon, Al-Si, and uranium silicide layers or of lead, Al-Si, and uranium silicide layers around said core, and an aluminum can bonded to said intermediate section. The aluminum can is dissolved in a solution of sodium hydroxide (9 to 20 wt%) and sodium nitrate (35 to 12 wt %), and the layers of the intermediate section are dissolved in a boiling sodium hydroxide solution of a minimum concentration of 50 wt%. (AEC) A method of selectively reducing plutonium oxides and the rare earth oxides but not uranium oxides is described which comprises placing the oxides in a molten solvent of zinc or cadmium and then adding metallic uranium as a reducing agent. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {2}
}