Published October 2022 | Version v1
Journal article Metadata-only

Cesium and strontium recovery from LiCl-KCl eutectic salt using electrolysis with liquid cathode

Creators

  • 1. Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)
  • 2. Changwon National University, Changwon (Korea, Republic of)

Description

Deposition behaviors of Sr and Cs in various liquid cathodes, such as Zn, Bi, Cd, and Pb, were examined to evaluate their recovery from LiCl-KCl eutectic salt. Cations in the salt were deposited on the liquid cathode, exhibiting potential of -1.8 to -2.1 V (vs. Ag/AgCl). Zn cathode had successful deposition of Sr and exhibited the highest recovery efficiency, up to 55 %. Meanwhile, the other liquid cathodes showed low current efficiencies, below 18 %, indicating LiCl-KCl salt decomposition. Sr was recovered from the Zn cathode as irregular rectangular SrZn13 particles. A negligible amount of Cs was deposited on the entire liquid cathode, indicating that Cs was hardly deposited on liquid cathodes. Based on these results, we propose that liquid Zn cathode can be used for cleaning Sr in LiCl-KCl salt

Additional details

Publishing Information

Journal Title
Nuclear Engineering and Technology
Journal Volume
54
Journal Issue
10
Journal Page Range
p. 3957-3961
ISSN
1738-5733

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
55095335
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Descriptors DEI
CATHODES; CESIUM; DECOMPOSITION; ELECTROLYSIS; EUTECTICS; LIQUIDS; LITHIUM CHLORIDES; MATERIALS RECOVERY; POTASSIUM CHLORIDES; PYROCHEMICAL REPROCESSING; SALTS; STRONTIUM
Descriptors DEC
ALKALI METAL COMPOUNDS; ALKALI METALS; ALKALINE EARTH METALS; CHEMICAL REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; ELECTRODES; ELEMENTS; FLUIDS; HALIDES; HALOGEN COMPOUNDS; LITHIUM COMPOUNDS; LITHIUM HALIDES; LYSIS; MANAGEMENT; METALS; POTASSIUM COMPOUNDS; POTASSIUM HALIDES; PROCESSING; REPROCESSING; SEPARATION PROCESSES; WASTE MANAGEMENT; WASTE PROCESSING

Optional Information

Notes
20 refs, 5 figs, 4 tabs