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Title: Process for recovery of palladium from nuclear fuel reprocessing wastes

Abstract

Palladium is selectively removed from spent nuclear fuel reprocessing waste by adding sugar to a strong nitric acid solution of the waste to partially denitrate the solution and cause formation of an insoluble palladium compound. The process includes the steps of: (a) adjusting the nitric acid content of the starting solution to about 10 M, (b) adding 50% sucrose solution in an amount sufficient to effect the precipitation of the palladium compound, (c) heating the solution at reflux temperature until precipitation is complete, and (d) centrifuging the solution to separate the precipitated palladium compound from the supernatant liquid.

Inventors:
 [1];  [2]
  1. Oak Ridge, TN
  2. Wartburg, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863993
Patent Number(s):
4290967
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07H - SUGARS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; recovery; palladium; nuclear; fuel; reprocessing; wastes; selectively; removed; spent; waste; adding; sugar; strong; nitric; acid; solution; partially; denitrate; formation; insoluble; compound; steps; adjusting; content; starting; 10; 50; sucrose; amount; sufficient; effect; precipitation; heating; reflux; temperature; complete; centrifuging; separate; precipitated; supernatant; liquid; reprocessing waste; supernatant liquid; acid solution; nitric acid; nuclear fuel; spent nuclear; amount sufficient; selectively removed; fuel reprocessing; selectively remove; strong nitric; reprocessing wastes; processing waste; /999/423/976/

Citation Formats

Campbell, David O, and Buxton, Samuel R. Process for recovery of palladium from nuclear fuel reprocessing wastes. United States: N. p., 1981. Web.
Campbell, David O, & Buxton, Samuel R. Process for recovery of palladium from nuclear fuel reprocessing wastes. United States.
Campbell, David O, and Buxton, Samuel R. Thu . "Process for recovery of palladium from nuclear fuel reprocessing wastes". United States. https://www.osti.gov/servlets/purl/863993.
@article{osti_863993,
title = {Process for recovery of palladium from nuclear fuel reprocessing wastes},
author = {Campbell, David O and Buxton, Samuel R},
abstractNote = {Palladium is selectively removed from spent nuclear fuel reprocessing waste by adding sugar to a strong nitric acid solution of the waste to partially denitrate the solution and cause formation of an insoluble palladium compound. The process includes the steps of: (a) adjusting the nitric acid content of the starting solution to about 10 M, (b) adding 50% sucrose solution in an amount sufficient to effect the precipitation of the palladium compound, (c) heating the solution at reflux temperature until precipitation is complete, and (d) centrifuging the solution to separate the precipitated palladium compound from the supernatant liquid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}