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Dissolution of Low Enriched Uranium from Experimental Breeder Reactor-II Fuel

Journal Article · · Separation Science and Technology
 [1];  [1];  [1];  [1]
  1. Savannah River National Lab., Aiken, SC (United States)
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A dissolution flowsheet for the Low Enriched Uranium (LEU) ingots generated at the Idaho National Laboratory (INL) from the electrochemical processing of the EBR-II fuel was demonstrated at the laboratory scale. Dissolution experiments were performed using samples of the LEU and a carbon steel can and an integrated experiment was performed in which an Al 1100 alloy was dissolved as a surrogate for Spent Nuclear Fuel (SNF) followed by the dissolution of samples of the LEU and carbon steel can to demonstrate the complete flowsheet. The flowsheet allows the dissolution of a SNF batch in an H-Canyon dissolver using existing flowsheets followed by the dissolution of nominally 75 kg of LEU in the 6.4D dissolver or 45 kg of LEU in the 6.1D dissolver which were recovered from the Experimental Breeder Reactor-II (EBR-II) fuel. In the demonstration experiment, the rate of dissolution of the LEU metal was significantly slower than the dissolution rate of the Al 1100 alloy (4.7 versus 27 mg/min/cm2) which projects to a longer cycle time for the LEU metal (compared to a SNF charge). Here, the H2 generation rates from the dissolution of samples of the LEU metal and a carbon steel can were monitored by mass spectrometry and Raman spectroscopy and were shown to be inconsequential; therefore, the dissolution of the LEU ingots has no significant impact on the generation of H2.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States); Savannah River National Lab (SRNL), Aiken, SC (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM)
Grant/Contract Number:
AC09-08SR22470
OSTI ID:
1591773
Report Number(s):
SRNL-STI--2017-00263-M
Journal Information:
Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 12 Vol. 54; ISSN 0149-6395
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English

References (1)

The Chemistry of the Actinide and Transactinide Elements book January 2006

Figures / Tables (15)

FIG. 1(p. 24)figure FIG. 1
FIG. 2(p. 24)figure FIG. 2
FIG. 3(p. 25)figure FIG. 3
FIG. 4(p. 25)figure FIG. 4
FIG. 5(p. 26)figure FIG. 5
TABLE 1(p. 27)table TABLE 1
TABLE 2(p. 27)table TABLE 2
TABLE 3(p. 28)table TABLE 3
TABLE 4(p. 28)table TABLE 4
TABLE 5(p. 28)table TABLE 5
TABLE 6(p. 29)table TABLE 6
TABLE 7(p. 29)table TABLE 7
Table 8(p. 29)table Table 8
TABLE 10(p. 30)table TABLE 10
TABLE 9(p. 30)table TABLE 9

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Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
H-Canyon
Uranium
dissolver