Preliminary test for reprocessing technology development of tritium breeders

In order to develop the reprocessing technology of lithium ceramics (Li 2 TiO 3 , CaO-doped Li 2 TiO 3 , Li 4 SiO 4 and Li 2 O) as tritium breeder materials for fusion reactors, the dissolution methods of lithium ceramics to recover 6 Li resource and the purification method of their lithium solutions to remove irradiated impurities ( 60 Co) were investigated. In the present work, the dissolving rates of lithium from each lithium ceramic powder using chemical aqueous reagents such as HN0 3 , H 2 O 2 and citric acid (C 6 H 8 O 7 · H 2 O) were higher than 90%. Further the decontamination rate of 60 Co added into the solutions dissolving lithium ceramics was higher than 97% using the activated carbon impregnated with 8-hydroxyquinolinol as chelate agent.