Conversion Reactions of Metal Chlorides into Oxides with Boric Acid Applicability to the Vitrification of Molten Salt Wastes
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概要
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Conversion reactions of metal chlorides into oxides with boric acid (H<SUB>3</SUB>BO<SUB>3</SUB>) were studied to develop the method for vitrification of radioactive molten salt wastes generated in the pyroreprocessing process. Mixtures of metal chlorides and H<SUB>3</SUB>BO<SUB>3</SUB> with appropriate compositions in Pt crucible were heated at 1, 000°C for 1h in an electric furnace, followed by rapid cooling to room temperature. The chloride compounds used were LiCl, NaCl, KCl, CsCl, SrCl<SUB>2</SUB>, BaCl<SUB>2</SUB>•2H<SUB>2</SUB>O, and CeCl<SUB>3</SUB>•6H2O. All chlorides other than CsCl were found to be transformed into oxides (borate glass) in the molar ratios of H<SUB>3</SUB>BO<SUB>3</SUB>/chlorides ?? 2. Furthermore, four-component systems, i.e., the mixtures of LiCl, KCl, NaCl (or SrCl<SUB>2</SUB>, BaCl<SUB>2</SUB>•2H<SUB>2</SUB>O, CeCl<SUB>3</SUB>•6H<SUB>2</SUB>O), and H<SUB>3</SUB>BO<SUB>3</SUB> were also examined in a similar manner. The borate glasses were found to be formed in the molar ratio of H<SUB>3</SUB>BO<SUB>3</SUB>/chlorides ?? 2.
- 社団法人 日本原子力学会の論文
- 1995-11-25
著者
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Ikeda Yasuhisa
Kashiwa Laboratory Institute Of Research And Innovation
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Igarashi Hiroshi
Nuclear Power Plant Engineering Department Hitachi Engineering Co. Ltd.
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TAKASHIMA Yoichi
Kashiwa Laboratory, Institute of Research and Innovation
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Takashima Yoichi
Kashiwa Laboratory Institute Of Research And Innovation
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KOBAYASHI Hiroaki
Power Reactor and Nuclear Fuel Development Corp.
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IGARASHI Hiroshi
Power Reactor and Nuclear Fuel Development Corp.
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