Efficient uranous nitrate production using membrane electrolysis

Yuan, Zhulin; Yan, Taihong; Zheng, Weifang; Shuang, Hongying; Liang, Xian; Bian, Xiaoyan; Zuo, Chao; Li, Chuanbo; Cao, Zhi

doi:10.1007/s10967-013-2463-5

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Various methods such as electrolytic, photocatalytic and catalytic methods have been developed for the production of U(IV) from U(VI) [14–25] . The electrochemical method is widely used on a commercial scale because of its reliability and ease of operation.…”

Section: Introductionmentioning

confidence: 99%

“…Various methods such as electrolytic, photocatalytic and catalytic methods have been developed for the production of U(IV) from U(VI). [14][15][16][17][18][19][20][21][22][23][24][25] The electrochemical method is widely used on a commercial scale because of its reliability and ease of operation. However, it has some limitations such as poor kinetics of U(VI) reduction, less efficiency (60-70 %), frequent electrode maintenance, and it is produced in a batch process.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

et al. 2022

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In PUREX process, uranous nitrate has been employed for the reduction of Pu(IV)to Pu(III).Fast generation of U(IV) with high yield is very much crucial for reprocessing of plutonium-rich fuels.In the present work, a catalytic method for the preparation of U(IV) from U(VI) using hydrazine as a reducing agent over Pt/SiO 2 catalyst surface was studied.The effect of various process variables on the efficiency of catalysis was studied and the process variables were optimized by design of experiments approach. Initial screening was carried out by Definitive Screen-ing Design (DSD) to identify the variables that influence the reaction significantly, and later, these significant variables were optimized by Central Composite Design (CCD). A second-order mathematical model was derived from response surface methodology (RSM) that relates the response (% reduction of U(VI)) as a function of significant variables. The model was validated experimentally to achieve 95 % U(IV) yield within 60 minutes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

et al. 2022

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Catalytic reduction of U(VI) with hydrazine using Pt/SiO2 catalyst in nitric acid medium—kinetics and equilibrium

Reddy

Pandey

Mondal

et al. 2020

J Radioanal Nucl Chem

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Feasibility of electro-reduction of U(VI) in oxalic acid using an electrolytic CEM-separated cell

Potgieter

Badenhorst

Westhuizen

et al. 2020

J Radioanal Nucl Chem

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Efficient uranous nitrate production using membrane electrolysis

Cited by 5 publications

References 11 publications

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

Catalytic reduction of U(VI) with hydrazine using Pt/SiO2 catalyst in nitric acid medium—kinetics and equilibrium

Feasibility of electro-reduction of U(VI) in oxalic acid using an electrolytic CEM-separated cell

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Efficient uranous nitrate production using membrane electrolysis

Cited by 5 publications

References 11 publications

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO2 using Hydrazine as Reducing Agent – Design of Experiments Approach

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO2 using Hydrazine as Reducing Agent – Design of Experiments Approach

Catalytic reduction of U(VI) with hydrazine using Pt/SiO2 catalyst in nitric acid medium—kinetics and equilibrium

Feasibility of electro-reduction of U(VI) in oxalic acid using an electrolytic CEM-separated cell

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Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach

Optimization of Process Variables for the Catalytic Reduction of U(VI) over Pt/SiO₂ using Hydrazine as Reducing Agent – Design of Experiments Approach