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Title: Method of removal of heavy metal from molten salt in IFR fuel pyroprocessing

An electrochemical method is described for separating heavy metal values from a radioactive molten salt including Li halide at temperatures of about 500 C. The method comprises positioning a solid Li--Cd alloy anode in the molten salt containing the heavy metal values, positioning a Cd-containing cathode or a solid cathode positioned above a catch crucible in the molten salt to recover the heavy metal values, establishing a voltage drop between the anode and the cathode to deposit material at the cathode to reduce the concentration of heavy metals in the salt, and controlling the deposition rate at the cathode by controlling the current between the anode and cathode. 3 figs.
Inventors:
Issue Date:
OSTI Identifier:
106694
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 050800; 210500; PA: EDB-95:133807; SN: 95001461630
Patent Number(s):
US 5,454,914/A/
Application Number:
PAN: 8-172,313
Contract Number:
W-31109-ENG-38
Resource Relation:
Other Information: PBD: 3 Oct 1995
Research Org:
Univ. of Chicago, IL (United States)
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; METALS; MATERIALS RECOVERY; ELECTRODEPOSITION; IFR REACTOR; SPENT FUELS; RADIOACTIVE MATERIALS; MOLTEN SALTS; ELECTRIC POTENTIAL; PROCESS CONTROL

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