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Chloride anion exchange coprocessing for recovery of plutonium from pyrochemical residues and Cs sub 2 PuCl sub 6 filtrate [electronic resource].

Published:
Washington, D.C : United States. Dept. of Energy. Office of the Assistant Secretary for Defense Programs, 1990.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: (19 pages) : digital, PDF file
Additional Creators:
United States. Department of Energy. Office of the Assistant Secretary for Defense Programs and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Continuing studies of plutonium recovery from direct oxide reduction (DOR) and electrorefining (ER) pyrochemical process residues show that chloride anion exchange coprocessing is useful and effective. Coprocessing utilizes DOR residue salt as a reagent to supply the bulk of chloride ion needed for the chloride anion exchange process and to improve ER residue salt solubility. ER residue salt and ER scrapeout can be successfully treated, either alone or together, using coprocessing. In addition, chloride anion exchange at 2.0M acidity results in improved process performance by greatly reducing disproportionation of plutonium(IV), eliminating restrictions on oxidation time compared to operation at 1.0M acidity. Laboratory-scale experiments show that below-discard effluent plutonium losses are obtained. Resin capacity was 30 g Pu/ℓ or greater. Furthermore, it is feasible to perform chloride anion exchange recovery of plutonium from filtrate resulting from precipitation of dicesium hexachloroplutonate (Cs₂PuCl₆, an oxidant salt to be used in the molten salt extraction process) and integration of its preparation with recovery of DOR salts. 10 refs., 9 figs., 10 tabs.
Report Numbers:
E 1.99:rfp-4325
rfp-4325
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
12/07/1990.
"rfp-4325"
"DE91006612"
Muscatello, A.C.; Killion, M.E.
EG and G Rocky Flats, Inc., Golden, CO (USA)
Funding Information:
AC34-90DP62349
View MARC record | catkey: 14666092