Estimation of optimum experimental parameters in chlorination of UO2 with Cl2 gas and carbon for UCl4

Yang, Yeong-Seok; Kang, Youngho; Lee, Hong-Ki

doi:10.1016/s0254-0584(97)01943-3

Cited by 14 publications

(2 citation statements)

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“…Although the DPP process has made significant progress in the reprocessing of oxide spent fuel, it still faces some critical challenges, such as the side reactions that generate UCl 6 and thus cause loss of uranium and the strong corrosiveness of chlorine gas. 6,7 These issues still need to be further addressed.…”

Section: Introductionmentioning

confidence: 99%

“…UO 2 2+ is then reduced to UO 2 on the cathode through molten salt electrolysis, and the fission elements are finally removed using precipitation methods such as phosphates. Although the DPP process has made significant progress in the reprocessing of oxide spent fuel, it still faces some critical challenges, such as the side reactions that generate UCl 6 and thus cause loss of uranium and the strong corrosiveness of chlorine gas. , These issues still need to be further addressed.…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

confidence: 99%