PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING
«New atomic energy technologies» federal program is being realized in Russia. This program includes experimental energy complex development and building, which contains: - a natural safety lead coolant fast reactor «BREST-300»; - a spent fuel recycle facility including fuel fabrication and re-fabric...
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| Format: | Article |
| Language: | Russian |
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MIREA - Russian Technological University
2016-12-01
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| Series: | Тонкие химические технологии |
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| Online Access: | https://www.finechem-mirea.ru/jour/article/view/63 |
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| author | M. Yu. Kalenova A. V. Dmitrieva I. V. Kuznetsov А. М. Koscheev O. E. Budin A. S. Schepin |
| author_facet | M. Yu. Kalenova A. V. Dmitrieva I. V. Kuznetsov А. М. Koscheev O. E. Budin A. S. Schepin |
| author_sort | M. Yu. Kalenova |
| collection | DOAJ |
| description | «New atomic energy technologies» federal program is being realized in Russia. This program includes experimental energy complex development and building, which contains: - a natural safety lead coolant fast reactor «BREST-300»; - a spent fuel recycle facility including fuel fabrication and re-fabrication, radioactive waste immobilization and discarding in accordance with radioactively-equivalent state. The current recycle facility preliminary design involves dry operation of spent fuel elements disassembly using steel shell dissolution by liquid zinc. Fuel element shells are made of special radiation-proof steel «EP-823» containing the following amounts of elements (%): C - 0.2; Мn - 0.8; Si - 1; S - 0.01; Р - 0.015; Сr - 12; Ni - 0.5; Мо - 0.9; V - 0.2; N - 0.05; Fe - 84.325. After dissolution zinc liquid containing steel elements is distilled. Still zinc is sent back to shells dissolution. The bottom product is destructurized particulate with the composition corresponding to original steel. Actinides steel shell and bottom product contamination was predicted using computer modeling. In accordance with the project technical specification actinide content in the disposable materials must be under 0.0001%. Thus, the bottoms product should be purified. Oxidative slag cold crucible induction melting purification was chosen and tested in laboratory scale. The following slag types were investigated: Al2O3-SiO2, B2O3-SiO2, Al2O3 - CaO. It was found that the most appropriate slag is B2O3-SiO2, and the optimal process temperature is about 1600°C. |
| format | Article |
| id | doaj-art-5380ee72cf5d4d8dafa7980b66097d5a |
| institution | Kabale University |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| publishDate | 2016-12-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj-art-5380ee72cf5d4d8dafa7980b66097d5a2025-08-20T03:56:33ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752016-12-01116839010.32362/2410-6593-2016-11-6-83-9063PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTINGM. Yu. Kalenova0A. V. Dmitrieva1I. V. Kuznetsov2А. М. Koscheev3O. E. Budin4A. S. Schepin5Joint-Stock Company «Leading Research Institute of Chemical Technology»Joint-Stock Company «Leading Research Institute of Chemical Technology»Joint-Stock Company «Leading Research Institute of Chemical Technology»Joint-Stock Company «Leading Research Institute of Chemical Technology»Joint-Stock Company «Leading Research Institute of Chemical Technology»Joint-Stock Company «Leading Research Institute of Chemical Technology»«New atomic energy technologies» federal program is being realized in Russia. This program includes experimental energy complex development and building, which contains: - a natural safety lead coolant fast reactor «BREST-300»; - a spent fuel recycle facility including fuel fabrication and re-fabrication, radioactive waste immobilization and discarding in accordance with radioactively-equivalent state. The current recycle facility preliminary design involves dry operation of spent fuel elements disassembly using steel shell dissolution by liquid zinc. Fuel element shells are made of special radiation-proof steel «EP-823» containing the following amounts of elements (%): C - 0.2; Мn - 0.8; Si - 1; S - 0.01; Р - 0.015; Сr - 12; Ni - 0.5; Мо - 0.9; V - 0.2; N - 0.05; Fe - 84.325. After dissolution zinc liquid containing steel elements is distilled. Still zinc is sent back to shells dissolution. The bottom product is destructurized particulate with the composition corresponding to original steel. Actinides steel shell and bottom product contamination was predicted using computer modeling. In accordance with the project technical specification actinide content in the disposable materials must be under 0.0001%. Thus, the bottoms product should be purified. Oxidative slag cold crucible induction melting purification was chosen and tested in laboratory scale. The following slag types were investigated: Al2O3-SiO2, B2O3-SiO2, Al2O3 - CaO. It was found that the most appropriate slag is B2O3-SiO2, and the optimal process temperature is about 1600°C.https://www.finechem-mirea.ru/jour/article/view/63cold crucible induction meltingactinidespurificationoxidationep-823brest 300slag |
| spellingShingle | M. Yu. Kalenova A. V. Dmitrieva I. V. Kuznetsov А. М. Koscheev O. E. Budin A. S. Schepin PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING Тонкие химические технологии cold crucible induction melting actinides purification oxidation ep-823 brest 300 slag |
| title | PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING |
| title_full | PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING |
| title_fullStr | PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING |
| title_full_unstemmed | PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING |
| title_short | PURIFICATION OF CONSTRUCTION MATERIALS OF SPENT FUEL ASSEMBLIES BY COLD CRUCIBLE INDUCTION MELTING |
| title_sort | purification of construction materials of spent fuel assemblies by cold crucible induction melting |
| topic | cold crucible induction melting actinides purification oxidation ep-823 brest 300 slag |
| url | https://www.finechem-mirea.ru/jour/article/view/63 |
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