Metallization of U₃O₈via catalytic electrochemical reduction with Li₂O in LiCl molten salt

Electrolytic reduction behavior of U3O8 in a molten LiCl–Li2O salt

“…An advanced SF conditioning process (ACP) has been developed to treat LWR SFs at the Korea Atomic Energy Research Institute (KAERI) and an electrolytic reduction process (Hur et al, 2003;Seo et al, 2006;Jeong et al, 2006a;Park et al, 2006) was adopted to transform an oxide SF into a metallic form in a LiCl--Li 2 O molten salt. The electrolytic reduction process of the ACP was developed according to a reduction mechanism similar to that of the ED method.…”

Use of a single fuel containment material during pyroprocessing tests

“…The heat, volume, and radioactivity of the spent fuel loaded in the cathode basket can be reduced by the selective dissolution of its high heat-load fission products into the molten salt (Iizuka et al, 2008;Sakamura et al, 2006). When an electrical potential is applied between the cathode and the anode in the electrolytic cell, the actinide metal oxide is reduced to the metal at the cathode, whereas the O 2À ions, which pass through the cathode, are transported through the salt and discharged at the anode in the form of O 2 gas (Chen et al, 2000;Gourishankar et al, 2002;Herrmann et al, 2006;Hur et al, 2003Hur et al, , 2010Redey and Gourishankar, 2003;Sakamura et al, 2008).…”

Characteristics of an electrochemical reduction of Ta2O5 for the preparation of metallic tantalum in a LiCl–Li2O molten salt

“…We have designed a unique cathode assembly with a porous magnesia membrane to realize a metallization from the oxides. Hur et al [5] suggested an electrochemical mechanism for the reduction of uranium oxides in our reactor system, including the concept of a closed Li 2 O recycle across a non-conductive porous membrane.…”

“…Recently, an electrochemical reduction process has been focused on to prepare a pure metallic particle [2][3][4][5][6]. Various molten salt systems have been used for a metallization of the metal oxide by an electrochemical reduction.…”

“…Korea Atomic Energy Research Institute (KAERI) has investigated the electrochemical reduction of metal oxides to prepare metallic particles in a LiCl-Li 2 O molten salt [5][6][7][8][9]. The novel concept of the electrochemical reduction process of KAERI is to reduce the metal oxides to their metallic forms by combining an electrode reaction and a chemical reaction.…”