APPLICATION OF REACTIVE PLASMA TO NUCLEAR WASTE TREATMENT - POSSIBILITY OF SEPARATION PROCESS OF ZR-NB ALLOY BY REACTIVE THERMAL PLASMA TREATMENT

Masaaki Suzuki; Takeshi Ichihashi; Arata Jote; Shigeru Nishio; Shinji Kawagoe

doi:10.1615/HighTempMatProc.v7.i4.40

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Главный редакторs: Valiantsin M. Astashynski (open in a new tab) Andrey V. Gusarov (open in a new tab)

Ассоциированный редактор: Nikolai N. Cherenda (open in a new tab)

Выходит 4 номеров в год

ISSN Печать: 1093-3611

ISSN Онлайн: 1940-4360

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APPLICATION OF REACTIVE PLASMA TO NUCLEAR WASTE TREATMENT - POSSIBILITY OF SEPARATION PROCESS OF ZR-NB ALLOY BY REACTIVE THERMAL PLASMA TREATMENT

Том 7, Выпуск 4, 2003, pp. 475-485

DOI: 10.1615/HighTempMatProc.v7.i4.40

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Masaaki Suzuki
Department of Chemical Engineering, Tokyo Institute of Technology 2-12-1 0-okayama, Meguro-ku, Tokyo 152-8552, Japan

Takeshi Ichihashi
Department of Chemical Engineering, Tokyo Institute of Technology 2-12-1 0-okayama, Meguro-ku, Tokyo 152-8552, Japan

Arata Jote
Department of Chemical Engineering, Tokyo Institute of Technology 2-12-1 0-okayama, Meguro-ku, Tokyo 152-8552, Japan

Shigeru Nishio
The Wakasa Wan Energy Research Center 64-52-1, Hase, Tsuruga-shi, Hukui 914-0192, Japan

Shinji Kawagoe
Fugen Nuclear Power Station, Japan Nuclear Cycle Development Institute 3 Myojin-cho, Tsuruga-shi, Hukui 914-8510, Japan

Краткое описание

Applications of thermal plasmas in the nuclear engineering field are reviewed, and as an application example of a reactive thermal plasma treatment, the possibility of separation of zirconium-niobium alloy is reported. Some experiments, which use a thermal fluorine plasma have been carried out and the following results have been obtained. When the process takes place above the melting point of this alloy, Zr is extracted successfully in the evaporated fine particles and Nb is enriched in the bulk alloy. This phenomenon can be explained well by using Gibbs free energy of fluorine reactions. For a better separation, a higher temperature of the sample and a more effective mass transfer of Nb in the melting alloy is required. The results confirm the possibility of this separation method.

ЦИТИРОВАНО В

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Suzuki Ryujiro, Matsuoka Yuya, Hirotani Daisuke, Nezu Atsushi, Mori Shinsuke, Akatsuka Hiroshi, Spectroscopic Measurement of Arc‐Discharge Argon Plasma Plume Injected into Water , IEEJ Transactions on Electrical and Electronic Engineering, 16, 3, 2021. Crossref
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