The electrical conductivity of model melts based on LiCl-KCl, used for the processing of spent nuclear fuel

Salyulev, A. B.; Potapov, Alexei; Хохлов, В. А.; Shishkin, Vladimir

doi:10.1016/j.electacta.2017.09.154

Cited by 16 publications

(17 citation statements)

References 22 publications

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“…This work is a direct continuation of our previous work , on the creation of a database of such melts. We have measured the electrical conductivity of (LiCl–KCl) eut.…”

Section: Introductionmentioning

confidence: 72%

Electrical Conductivity of (LiCl–KCl)_eut.–SrCl₂ Molten Mixtures

Salyulev

Potapov

2021

J. Chem. Eng. Data

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The electrical conductivity of molten (LiCl−KCl) eut. −SrCl 2 mixtures has been measured from the liquidus temperature up to 1150− 1220 K over the entire concentration range. The density is estimated and the molar conductivity of these mixtures is calculated. For all molten mixtures, the ln Λ vs 1/T dependence has a nonlinear form. Both the specific and molar conductivities have negative deviations from the additive values. This indicates the presence of complexation in the system. Using breakpoints of the electrical conductivity polytherms, the liquidus line of this system is built. The conductivity activation energy is calculated. The activation energy increases as the temperature decreases and the SrCl 2 concentration increases. The results are discussed considering the available data on the structure of the melts.

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“…This work is a direct continuation of our previous work , on the creation of a database of such melts. We have measured the electrical conductivity of (LiCl–KCl) eut.…”

Section: Introductionmentioning

confidence: 72%

Electrical Conductivity of (LiCl–KCl)_eut.–SrCl₂ Molten Mixtures

Salyulev

Potapov

2021

J. Chem. Eng. Data

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“…Lithium and its compounds are widely used in batteries, alloy manufacturing, ceramics, and new energy [1][2][3][4]. Accordingly, the market demand for lithium has increased dramatically in recent years.…”

Section: Introductionmentioning

confidence: 99%

Amorphous TiO₂‐Derived Large‐Capacity Lithium Ion Sieve for Lithium Recovery

Chen

Chao

et al. 2020

Chem Eng & Technol

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The lithium titanium oxide ion sieve with good structural stability and high adsorption capacity is generally considered to be a promising adsorbent for lithium recovery. Herein, the lithium ion sieve precursor Li2TiO3 was prepared based on amorphous TiO2, and then Li+ was acid‐eluted to obtain the lithium adsorbent H2TiO3, denoted as HTO‐Am. The structure and adsorption properties of HTO‐Am were investigated, and the results demonstrated that the HTO‐Am prepared at the optimum temperature had excellent adsorption properties for Li+. The adsorption process follows pseudo‐second‐order kinetic and Langmuir isotherm equations, indicating that lithium is adsorbed chemically and monolayer on HTO‐Am. HTO‐Am ion sieves were prepared successfully for the first time and exhibited high selectivity, favorable adsorption rate, and cycle performance for Li+.

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“…[14][15][16][17][18][19] The pyrochemical methods have the following advantages: 1) the use of simple inorganic reagents with high thermal and radiation stability, 2) their permit for shorter fuel cooling time before reprocessing, 3) more compact fuel cycle technology. [20][21][22][23] Electrolysis [24][25][26][27] and liquid-liquid metal reduction extraction [26,28] are the most advanced thermochemical techniques for the extraction of lanthanides from molten products in molten salt media. In the process, molten salts such as LiCl-KCl are used as electrolytes for an electrochemical reaction system.…”

Section: Introductionmentioning

confidence: 99%

“…Pyrochemical process is regarded as a promising technique for future spent nuclear fuel management, and it is under development worldwide . The pyrochemical methods have the following advantages: 1) the use of simple inorganic reagents with high thermal and radiation stability, 2) their permit for shorter fuel cooling time before reprocessing, 3) more compact fuel cycle technology . Electrolysis and liquid–liquid metal reduction extraction are the most advanced thermochemical techniques for the extraction of lanthanides from molten products in molten salt media.…”

Section: Introductionmentioning

confidence: 99%

Extraction of neodymium from other fission products by co‐reduction of Sn and Nd

Zhang

Yan

et al. 2019

Applied Organom Chemis

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High temperature processing is an important method for recovering long‐lived elements from spent nuclear fuel. Electrolysis is the key technology for high temperature processing. The electrochemical behaviors of Sn2+, Nd3+ and the mechanisms of Sn‐Nd alloy formation were investigated on a Mo electrode at 873 K by conducting a series of electrochemical techniques. The results showed the deposition of Nd on inert electrode is a two‐step process in LiCl‐KCl‐SnCl2 (2.0 wt.%) melt system. Subsequently, the electrochemical extraction of Nd from molten chlorides were carried out on the Mo electrode at temperature of 873 K by the potentiostatic electrolysis at −1.2 V for 40 hr. Besides, the extraction efficiency is 97.6%. A series of potentiostatic electrolysis were carried out at potential range between −1.0 and − 1.4 V. The NdSn3 alloy was obtained by electrolysis at −1.2 V. This deposition potential is consistent with the predicted results of the mathematical model. The micro‐chemical analysis and morphology analysis of the deposits was characterized by energy dispersive spectrometry (EDS) with scanning electron microscopy (SEM) equipped. The composition of the deposits was analyzed by X‐ray diffraction (XRD) and inductive coupled plasma atomic emission spectrometer (ICP‐AES).

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The electrical conductivity of model melts based on LiCl-KCl, used for the processing of spent nuclear fuel

Cited by 16 publications

References 22 publications

Electrical Conductivity of (LiCl–KCl)_eut.–SrCl₂ Molten Mixtures

Electrical Conductivity of (LiCl–KCl)_eut.–SrCl₂ Molten Mixtures

Amorphous TiO₂‐Derived Large‐Capacity Lithium Ion Sieve for Lithium Recovery

Extraction of neodymium from other fission products by co‐reduction of Sn and Nd

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The electrical conductivity of model melts based on LiCl-KCl, used for the processing of spent nuclear fuel

Cited by 16 publications

References 22 publications

Electrical Conductivity of (LiCl–KCl)eut.–SrCl2 Molten Mixtures

Electrical Conductivity of (LiCl–KCl)eut.–SrCl2 Molten Mixtures

Amorphous TiO2‐Derived Large‐Capacity Lithium Ion Sieve for Lithium Recovery

Extraction of neodymium from other fission products by co‐reduction of Sn and Nd

Contact Info

Product

Resources

About

Electrical Conductivity of (LiCl–KCl)_eut.–SrCl₂ Molten Mixtures

Electrical Conductivity of (LiCl–KCl)_eut.–SrCl₂ Molten Mixtures

Amorphous TiO₂‐Derived Large‐Capacity Lithium Ion Sieve for Lithium Recovery