Characteristics of an integrated cathode assembly for the electrolytic reduction of uranium oxide in a LiCl-Li2O molten salt

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

“…A reduction of the lithium ion (Eq. (4)) can take place on a cathode as well, and the reduction potential of lithium has been measured to be much more cathodic than an oxygen ionization from uranium oxide (Gourishankar et al, 2002;Herrmann et al, 2006Herrmann et al, , 2007Park et al, 2006). Once lithium metal is produced on a cathode as Eq.…”

“…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

“…In this context, closed metal fuel cycles consisting of the use of metal fuel fast breeder reactors, pyroprocessing, and fuel fabrication by means of injection casting, have been developed with the goal of maximizing the efficiency of U usage and energy generation, while simultaneously minimizing radiotoxicity and waste generation, thereby increasing safety levels and economic efficiency. Pyroprocessing based on electrolysis using high temperature molten salts as the reaction medium, involves the reduction of the spent oxide fuel to its metallic form, through an electrolytic reduction process and the recovery of the fuel components by means of an electrorefining process (Benedict and McFarlane, 1998;Goff et al, 2011;Hur et al, 2008;Iizuka et al, 2008;Jeong et al, 2006;Kitawaki et al, 2008;Koyama et al, 2009;Laidler et al, 1997;Park et al, 2006;Serp et al, 2004;Simpson and Herrmann, 2008;Willit et al, 1992;Yoo et al, 2008).…”

Corrosion behavior of Ni-based structural materials for electrolytic reduction in lithium molten salt

“…In addition, the Advanced Spent Fuel Conditioning Process (ACP) has been under development at the Korea Atomic Energy Research Institute (KAERI) since 1997. The process aims to convert the spent oxide fuel into a metallic form by electrolytic reduction [3,4]. The electrolytic reduction process for the spent oxide nuclear fuel is carried out in LiCl-Li 2 O molten salt at 650°C.…”