Methods of capturing and immobilizing radioactive nuclei with metal fluorite-based inorganic materials
| DWPI Title: Method for capturing and immobilizing radioactive nuclei, involves, removing radioactive species from gas stream by adsorbing radioactive species to metal fluorite-based inorganic material of exhaust apparatus |
| Abstract: Methods of capturing and immobilizing radioactive nuclei with metal fluorite-based inorganic materials are described. For example, a method of capturing and immobilizing radioactive nuclei includes flowing a gas stream through an exhaust apparatus. The exhaust apparatus includes a metal fluorite-based inorganic material. The gas stream includes a radioactive species. The radioactive species is removed from the gas stream by adsorbing the radioactive species to the metal fluorite-based inorganic material of the exhaust apparatus. |
| Use: Method for capturing and immobilizing radioactive nuclei with metal fluorite-based inorganic materials. |
| Advantage: The combination of both high sorption affinity and high specific surface area renders the resulting nanoporous metal fluorite materials as excellent radionuclide adsorbents. The high chemical stability of the adsorbent materials with extreme chemical and physical environments in acidic elevated temperature environments is achieved. Since the surface areas are fabricated for an aluminum-rich fluorite species and suitable for radionuclide capture, the surface area and immobilization ability is increased. |
| Novelty: The method (200) involves flowing (202) a gas stream through an exhaust apparatus comprising a metal fluorite-based inorganic material, and the gas stream comprises a radioactive species. The radioactive species is removed (204) from the gas stream by adsorbing the radioactive species, to the inorganic material of the exhaust apparatus. The radioactive species is removed (208) from the inorganic material into a medium selected from the group consisting of second gas stream, liquid extraction medium, and solid extraction medium for chemical separation or concentration. |
| Filed: 9/2/2011 |
| Application Number: US13225149A |
| Tech ID: SD 11915.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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