Wet chemical synthesis of apatite-based waste forms – A novel room temperature method for the immobilization of radioactive iodine
| Autor: | Charles Cao, Lynn M. Thirion, John C. Mauro, Ashutosh Goel, Saehwa Chong, John S. McCloy |
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| Rok vydání: | 2017 |
| Předmět: |
Fission products
Volatilisation Renewable Energy Sustainability and the Environment Borosilicate glass Radiochemistry chemistry.chemical_element Scrubber 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Iodine 01 natural sciences Apatite 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium General Materials Science Vitrification 0210 nano-technology Solid solution |
| Zdroj: | Journal of Materials Chemistry A. 5:14331-14342 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c7ta00230k |
| Popis: | Iodine isotopes make up ∼0.69% of the fission products of 235U slow neutron fission, i.e. ∼360 g iodine per metric ton of 235U. The currently proposed technology for the removal of iodine from reprocessing plant off-gas is to pass it through a caustic scrubber (using ∼1–2 M NaOH) to form NaI, NaIO3 and possibly NaOI, or to pass it through Ag-containing solid sorbents to form chemisorbed AgI. Since iodine is not amenable to conventional vitrification routes because of its poor incorporation into borosilicate glass chemistry and high volatilization at temperatures >500 °C, considerable effort is being made to develop alternative waste forms for the immobilization of iodine at low temperatures ( |
| Databáze: | OpenAIRE |
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