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Title: Process to remove rare earth from IFR electrolyte

The invention is a process for the removal of rare earths from molten chloride electrolyte salts used in the reprocessing of integrated fast reactor fuel (IFR). The process can be used either continuously during normal operation of the electrorefiner or as a batch process. The process consists of first separating the actinide values from the salt before purification by removal of the rare earths. After replacement of the actinides removed in the first step, the now-purified salt electrolyte has the same uranium and plutonium concentration and ratio as when the salt was removed from the electrorefiner.
 [1];  [2]
  1. (Downers Grove, IL)
  2. (Wheaton, IL)
Issue Date:
OSTI Identifier:
United States of America as represented by United States (Washington, DC) ANL
Patent Number(s):
US 5336450
Contract Number:
Research Org:
Argonne National Laboratory (ANL), Argonne, IL
Country of Publication:
United States
process; remove; rare; earth; ifr; electrolyte; removal; earths; molten; chloride; salts; reprocessing; integrated; fast; reactor; fuel; continuously; normal; operation; electrorefiner; batch; consists; separating; actinide; values; salt; purification; replacement; actinides; removed; step; now-purified; uranium; plutonium; concentration; ratio; actinide values; rare earths; normal operation; rare earth; reactor fuel; salt electrolyte; fast reactor; batch process; molten chloride; electrolyte salt; electrolyte salts; process consists; chloride electrolyte; /423/588/