کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9781833 1511637 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deposition behavior of UO2 and noble-metal elements in oxide-electrowinning reprocessing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Deposition behavior of UO2 and noble-metal elements in oxide-electrowinning reprocessing
چکیده انگلیسی
As a candidate process for future reprocessing technology of nuclear spent fuel, oxide-electrowinning method has been studied. In this method, the uranium is collected on the cathode in the form of UO2 by electrolysis in the molten chloride. Thereby, the noble metal (NM) elements accompany the uranium deposition, because of very close redox potential between NM elements and UO2. To clarify the electrolysis behavior of the uranium and NM elements in the low-current-density electrolysis, the laboratory scale experiments were performed under various conditions of cathode current density and solutes concentration in the chloride melt, and the separation efficiency and the morphology of the deposition were investigated. It was found that the separation of Pd from uranium was more difficult than that of Rh. The presence of U4+ greatly influenced current efficiency of the electrolysis process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 66, Issues 2–4, February–April 2005, Pages 629-633
نویسندگان
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