Thermodynamic Properties of Different Titanium Ions in Fused LiCl‐KCl Eutectic

Song, Jianxun; Wang, Qiuyu; Zhu, Xiaobo; Hou, Jungang; Jiao, Shuqiang; Zhu, Hongmin

doi:10.1002/9781118888551.ch25

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The calibration of RE electrode was determined by the potential of chlorine gas evolution. 34 Melt preparation.-The blank salt LiCl-KCl eutectic salt (>99.0%) were mixed in pyrolytic graphite crucible and placed in a vacuum drying oven at 423 K for over 24 h. Then, the blank salt was heated in a muffle furnace at 773 K for 24 h. After cooling down, the salt was placed in a container for later use. In the experiment, UCl 3 and LnCl 3 (Ln: La, Ce, Pr, Nd) were fabricated in melted blank salt by the reaction of BiCl 3 (>99.9%, Alfa Aesar) z E-mail: shiwq@ihep.ac.cn with those metals.…”

Section: Methodsmentioning

confidence: 99%

Kinetic Properties and Electrochemical Separation of Uranium on Liquid Bismuth Electrode in LiCl–KCl Melt

Yin

Jiang

Yan

et al. 2021

J. Electrochem. Soc.

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Electrochemical studies of UCl3 and LnCl3 (Ln: La, Ce, Pr, Nd) in LiCl–KCl melt were performed on inert tungsten and reactive bismuth electrodes. Galvanostatic pulse (GP) and electrochemical impedance spectroscopy (EIS) were carried out to investigate the exchange current density j0 of UCl3/U on liquid Bi electrode at the temperature range of 723–873 K. The impedance data were well fitted with the equivalent circuit. The relationship between j0 and the temperature was determined to model the electrowinning by using liquid Bi electrode. In addition, the electrochemical separation in low concentration uranium from multi-component lanthanide chlorides was demonstrated on liquid Bi electrode. Three electrochemical techniques, including coulometric titration, galvanostatic electrolysis and potentiostatic electrolysis, were applied for the separation of uranium. In which, the coulometric titration showed good separation results. The separation of uranium from lanthanides in terms of mole ratio (U/Ln) was determined, and the different values were discussed in detail. In general, the data from this work can provide theoretical reference for the separation process of various metals by electrochemistry.

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Section: Methodsmentioning

confidence: 99%

Kinetic Properties and Electrochemical Separation of Uranium on Liquid Bismuth Electrode in LiCl–KCl Melt

Yin

Jiang

Yan

et al. 2021

J. Electrochem. Soc.

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“…30 All the measured curves were tested after the calibration of the reference electrode. 32 Melt preparation.-First, 500 g LiCl-KCl mixture were weighed and placed in pyrolytic graphite crucible, and then moved into vacuum drying oven to remove residual water. After the heat process at 423 K for 24 h, the salt was moved into glove box to be melted.…”

Section: Methodsmentioning

confidence: 99%

Thermodynamics and Kinetics Properties of Lanthanides (La, Ce, Pr, Nd) on Liquid Bismuth Electrode in LiCl-KCl Molten Salt

Yin

Liu

Yang

et al. 2020

J. Electrochem. Soc.

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Electrochemical behaviors of lanthanide (i.e. La, Ce, Pr and Nd) chlorides in LiCl-KCl melt were demonstrated via cyclic voltammetry (CV) and open circuit potential (OCP) techniques at temperatures from 723 K to 873 K. An electrochemical galvanostatic intermittent titration technique (GITT) was performed to obtain the thermodynamic data of lanthanide (Ln) on liquid bismuth electrode. The relationship between activity coefficient and temperature were determined. Galvanostatic pulse (GP) and electrochemical impedance spectroscopy (EIS) as the transient measurements were performed to investigate the interfacial processes of Ln(III) on liquid Bi electrode. The exchange current densities j 0 of Ln(III)/Ln were determined by fitting and equivalent circuits, that showed the linear relationship with temperature. In addition, the electrodepositions of La and Ce on liquid Bi electrodes were discussed on the formation of alloys. The products of phase composition and microstructure were conducted by XRD and SEM-EDS, respectively.

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“…Before the use as the solvents, both MgCl 2 and LiCl were purified by bubbling HCl gas through the melts separately to remove O 2¹ dissolved in the salts, and filtrated through a quartz filter. 21) Titanium sub-chloride salts were prepared by the disproportionation of titanium tetrachloride TiCl 4 and metallic titanium in the solvent salts.…”

Section: Methodsmentioning

confidence: 99%

Equilibrium between Metallic Titanium and Titanium Ions in MgCl<sub>2</sub>–LiCl Molten Salt

Song

Zhu

et al. 2019

Mater. Trans.

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Thermodynamic Properties of Different Titanium Ions in Fused LiCl‐KCl Eutectic

Cited by 4 publications

References 10 publications

Kinetic Properties and Electrochemical Separation of Uranium on Liquid Bismuth Electrode in LiCl–KCl Melt

Kinetic Properties and Electrochemical Separation of Uranium on Liquid Bismuth Electrode in LiCl–KCl Melt

Thermodynamics and Kinetics Properties of Lanthanides (La, Ce, Pr, Nd) on Liquid Bismuth Electrode in LiCl-KCl Molten Salt

Equilibrium between Metallic Titanium and Titanium Ions in MgCl<sub>2</sub>–LiCl Molten Salt

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