کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6605387 1424100 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Extraction of neodymium by direct reduction of NdOCl in molten calcium chloride
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Extraction of neodymium by direct reduction of NdOCl in molten calcium chloride
چکیده انگلیسی
The direct electrochemical extraction of neodymium using a modified (Fray-Farthing-Chen) FFC process is proposed in this article. In this modified FFC process, NdOCl, prepared from the reaction of Nd2O3 and CaCl2 was used as the cathode and an yttria stabilized zirconia (YSZ) tube loaded with tin was used to separate the anode from the molten electrolyte. NdOCl reduction occurs in two steps: NdOCl to NdO and NdO to Nd, as determined by cyclic voltammetry. The diffusion coefficients of NdO+ and oxygen ions were also calculated for each step. A cell voltage of 3.6 V was found to be sufficient to have a reduction of NdOCl to Nd metal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 257, 10 December 2017, Pages 465-472
نویسندگان
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