Spectroelectrochemical study of molybdenum containing chloride melts

Volkovich, Vladimir A.; Vasin, B. D.; Tropin, O. A.; Danilov, D. A.; Raspopin, S.P.

doi:10.1134/s003602951002014x

Cited by 16 publications

(13 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ternary LiCl-KCl-CsCl eutectic was prepared from the individual alkali chlorides using the procedure described previously (1). Lanthanum containing chloride mixtures were obtained by reacting lanthanum oxide with hydrogen chloride in the LiCl-KCl-CsCl melt.…”

Section: Methodsmentioning

confidence: 99%

Electrochemical and Thermodynamic Properties of Lanthanum in a Chloride Melt – Liquid Metal System

et al. 2016

View full text Add to dashboard Cite

The behavior and properties of lanthanum in a “molten salt – liquid metal” system in relation to pyrochemical reprocessing of spent nuclear fuels was considered. Temperature dependencies of lanthanum formal standard electrode potential E* La/La(III) and Gibbs free energy change of lanthanum trichloride formation in LiCl–KCl–CsCl eutectic based melts were obtained between 668–976 K. Also the behavior of lanthanum was studied in Ga–Al (1.6 wt. % Al) and Ga–Zn (3.64 wt. % Zn) eutectic based metallic alloys, and activity, solubility and activity coefficients of lanthanum determined.

show abstract

Section: Methodsmentioning

confidence: 99%

Electrochemical and Thermodynamic Properties of Lanthanum in a Chloride Melt – Liquid Metal System

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The electronic absorption spectra (EAS) were recorded between 200 and 1500 nm using an original set-up based on Avantes AvaSpec-2048-2 and NIR256-1.7 fiber optic spectrometers. All experiments were performed in NaCl-KCl equimolar melt at 750 0 C. The experimental techniques of spectroscopic measurements during anodic dissolution in molten salts and design of spectroelectrochemical cells have been described previously (22). Anodic current density was set bellow 10 mA/cm 2 , and the time of dissolution was varied depending on the molar absorption coefficients of the elements studied.…”

Section: Methodsmentioning

confidence: 99%

Spectroelectrochemical Study of Stainless Steel Corrosion in NaCl-KCl Melt

Abramov¹,

Polovov

Volkovich

et al. 2010

ECS Trans.

View full text Add to dashboard Cite

High-temperature spectroelectrochemestry was applied to study corrosion of various types of stainless steel in molten salts. The electronic absorption spectra of products of anodic dissolution of stainless steel major components (iron, chromium, nickel, molybdenum, manganese, titanium) were measured in NaCl-KCl melt at 750 0 C. The effectiveness and limitations of applying spectroscopic method for studying alloys corrosion was demonstrated on example of anodic dissolution of AISI 316L, 316Ti and 321 austenitic steels. The major corrosion products of steels are iron, manganese and chromium species. Prolongation of anodic dissolution leads to increasing chromium-to-iron ratio in the melt. Titanium in steels forms very stable carbonitride species that aren't dissolved during anodic oxidation.

show abstract

“…The profile of the spectral curve then changed and a new prominent broad band appeared at around 760nm. Previous studies of chloride melts containing molybdenum showed that molybdenum(VI) chloro-species absorb in this region of the spectrum (30,31). It can therefore be concluded that oxidation of Mo(III) to 3-+ ½ Cl 2 → MoCl 6 2-+ Cl - [8] Molybdenum(IV) ions are then oxidized to MoCl 5 .…”

Section: Molybdenum(iii) Chloride In the Form Of Moclmentioning

confidence: 98%

The Effect of Fission Product Elements on the Behavior of Uranyl Species in Alkali Chloride Melts: a Contribution towards Reprocessing Spent Oxide Fuels

Volkovich¹,

Aleksandrov²,

Vasin³

et al. 2010

ECS Trans.

View full text Add to dashboard Cite

The reactions of uranyl(VI) containing chloride melts with molybdenum, niobium, zirconium and palladium were studied using high temperature electronic absorption spectroscopy. Depending on the nature of the added element uranium is reduced to uranyl(V) and uranium(IV) chloro-species and UO2. Palladium, niobium and zirconium can all be removed from a uranyl(VI)-containing melt using molybdenum metal and the melt can then be purified from Mo(III) ions by bubbling Cl2 gas. Such approach can be employed for removal a number of fission product elements from molten chloride baths during reprocessing spent oxide fuels.

show abstract

Spectroelectrochemical study of molybdenum containing chloride melts

Cited by 16 publications

References 9 publications

Electrochemical and Thermodynamic Properties of Lanthanum in a Chloride Melt – Liquid Metal System

Electrochemical and Thermodynamic Properties of Lanthanum in a Chloride Melt – Liquid Metal System

Spectroelectrochemical Study of Stainless Steel Corrosion in NaCl-KCl Melt

The Effect of Fission Product Elements on the Behavior of Uranyl Species in Alkali Chloride Melts: a Contribution towards Reprocessing Spent Oxide Fuels

Contact Info

Product

Resources

About