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In the framework of Agreement #280204 (first year) it was necessary to review methods of apatite synthesis; identify optimal procedure of precursor preparation; obtain and study first fluorapatite samples. Although, some apatite-based ceramics were successfully synthesized using co-precipitated precursors and sintering method, there are still a lot of uncertainties related to optimal apatite doping with different radionuclides and non-radioactive elements. It is necessary to provide complete incorporation of waste elements into apatite crystalline structure avoiding formation of separate phases of radionuclides. Also, it is important to note that real waste streams might contain radionuclides with essentially different chemical features such as Cs, Sr, rare earth elements and actinides. Therefore, study of apatite loading capacity to different individual elements and their various combinations was a main goal of present research.
In the framework of current Agreement #280204-1 (second year) new samples of apatite based ceramic doped with Cs, Sr and rare earth elements were obtained and studied at KRI.
Apatite – Properties; Ceramic materials; Fluorides; Phosphates; Radioactive wastes – Purification; Separation (Technology); Strontium compounds; Zirconium compounds
Apatite; Radioactive wastes--Purification; Separation (Technology)
Analytical Chemistry | Chemistry | Oil, Gas, and Energy | Physical Chemistry
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Burakov, B. E.
Development of Fluorapatite as a Waste Form: Final Report #280204-1.
Available at: https://digitalscholarship.unlv.edu/hrc_trp_separations/67