Conversion of UO2 to UCl3 using AlCl3 in LiCl–KCl eutectic melt in presence of lanthanide (Nd, Pr, Ce, La) oxides: a spectroscopic study

Samanta, Nibedita; Maji, S.; Kumar, Satendra; Venkatesh, P.; Chandra, Manish; Jain, Ashish

doi:10.1007/s10967-022-08664-9

Cited by 2 publications

(1 citation statement)

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“…Liu et al 11 used NH 4 Cl to chlorinate U 3 O 8 to generate UO 2 Cl 2 in an air atmosphere. Samanta et al 12 introduced AlCl 3 into the LiCl−KCl melt to chlorinate UO 2 to UCl 3 . Liu et al 13 used AlCl 3 to chlorinate U 3 O 8 and UO 2 under an argon atmosphere, successfully preparing UCl 4 with different initial products.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Electrochemical Dissolution of a Soluble Uranium Oxycarbide Anode

Yang¹,

Yang

Shen

et al. 2023

Inorg. Chem.

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A soluble uranium oxycarbide (UC0.4O0.6) anode was synthesized by a carbothermal reduction process, using U3O8, UO2, and graphite as raw materials, in a vacuum environment of 0.1 MPa at 1750 °C. The sintered UC0.4O0.6 exhibited excellent conductivity and stability in LiCl–KCl molten salt. The dissolution process of UC0.4O0.6 in molten salt was analyzed by linear sweep voltammetry (LSV), and the initial dissolution potential, rapid dissolution potential, and passivation potential were determined. The oxidation/reduction process of dissolved uranium ions in LiCl–KCl molten salt was studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). The experimental results showed that the addition of Li2O significantly reduced the volatilization of U(VI) and increased the concentration of UO2 2+ in molten salt. Finally, the product was conducted by electrolysis at 1.0 V and was confirmed to be UO2 by XRD and SEM-EDS analysis.

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Section: Introductionmentioning

confidence: 99%