High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) An International Journal

ISSN for PRINT: 1093-3611

For Online Access

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2003, Volume7

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

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.

DOI: 10.1615/HighTempMatProc.v7.i4.40 Download article, 475-485 pages

Article price - $35.00

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