Synthesis of simulated cruds for development of decontaminating agents
2003; Elsevier BV; Volume: 223; Issue: 3 Linguagem: Inglês
10.1016/s0029-5493(03)00077-3
ISSN1872-759X
AutoresKyeongsook Kim, Hong-Joo Lee, Duk‐Won Kang, S. Inoue,
Tópico(s)Graphite, nuclear technology, radiation studies
ResumoThe Chalk River Unidentified Deposit (cruds) were classified into Types 1 and 2 based on the analyses of actual cruds from target objects such as steam generator (SG) of Korea and Japan Pressurized Water Reactor (PWR). A metal oxide or metal hydroxide was used to synthesize simulated cruds having chemical compositions and crystalline structure similar to the actual one by 12 different methods. CRUD 4 (metal oxides in the autoclave vessel) and CRUD 10 (metal oxides in a crucible after hydrazine pretreatment) were chosen as the best method for Types 1 and 2, respectively. These simulated cruds showed reasonable dissolubilities by dissolution tests using well-known decontaminating agents. As these cruds can be synthesized easily without using any specialized equipment or reagents in a short time and in large quantities, they are expected to stimulate the development of decontaminating agents and processes.
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