High temperature organic extraction of uranium, plutonium and americium fused chlorides

Borkowska, Z.; Mielcarski, M.; Taube, M.

doi:10.1016/0022-1902(64)80080-4

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…Distribution ratios of U(IV), U(III), Pu(IV), Pu(III), and Am(III) between the KCl–CuCl eutectic at 180 °C and an LP phase containing TBP, trioctylamine (TOA), or di- n -butyl phosphoric acid (HDBP) dissolved in biphenyl were determined . The amount of Cu(I) extracted into the TOA phase was comparable to the total amount of TOA, because of the formation of ion-pair complexes, e.g., [(TOA) 2 Cu][CuCl 2 ], hindering the extraction of actinides.…”

Section: Ionic Solventsmentioning

confidence: 99%

“…Distribution ratios of U(IV), U(III), Pu(IV), Pu(III), and Am(III) between the KCl−CuCl eutectic at 180 °C and an LP phase containing TBP, trioctylamine (TOA), or di-n-butyl phosphoric acid (HDBP) dissolved in biphenyl were determined. 106 The amount of Cu(I) extracted into the TOA phase was comparable to the total amount of TOA, because of the formation of ion-pair complexes, e. 107 The metal cations in the eutectic melt were in the form of negatively charged complexes, whereas they are hydrated in aqueous solutions. TOPO did not extract any metals, D2EHPA formed a third phase, and Cyanex 272 extracted metals in this order: Co(II) > Fe(II) > Cr(III) > Ni(II).…”

Section: Co(ii) In Kscn−nascn Eutectic Was Extracted By Di-ndodecylam...mentioning

confidence: 99%

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Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms

Dewulf

Binnemans

2021

Ind. Eng. Chem. Res.

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Efficient and sustainable separation of metals is gaining increasing attention, because of the essential roles of many metals in sustainable technologies for a climate-neutral society, such as rare earths in permanent magnets and cobalt, nickel, and manganese in the cathode materials of lithium-ion batteries. The separation and purification of metals by conventional solvent extraction (SX) systems, which consist of an organic phase and an aqueous phase, has limitations. By replacing the aqueous phase with other polar solvents, either polar molecular organic solvents or ionic solvents, nonaqueous solvent extraction (NASX) largely expands the scope of SX, since differences in solvation of metal ions lead to different distribution behaviors. This Review emphasizes enhanced metal extraction and remarkable metal separations observed in NASX systems and discusses the effects of polar solvents on the extraction mechanisms according to the type of polar solvents and the type of extractants. Furthermore, the considerable effects of the addition of water and complexing agents on metal separations in terms of metal ion solvation and speciation are highlighted. Efforts to integrate NASX into metallurgical flowsheets and to develop closed-loop solvometallurgical processes are also discussed. This Review aims to construct a framework of NASX on which many more studies on this topic, both fundamental and applied, can be built.

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Section: Ionic Solventsmentioning

confidence: 99%

Section: Co(ii) In Kscn−nascn Eutectic Was Extracted By Di-ndodecylam...mentioning

confidence: 99%

Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms

Dewulf

Binnemans

2021

Ind. Eng. Chem. Res.

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Vapour pressure and derived informations of The CuClKCl System

Arski

1971

Zeitschrift anorg allge chemie

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By use of the transpiration method, the partial vapour pressures of the CuClKCl system were measured at 800°C as a function of composition of the system. The Rodebush‐Dixon method has been applied for the determination of the total vapour pressure of the system. The average molecular weight obtained for copper(I) chloride indicate on the dimerized trimer structure (Cu3Cl3)2 in the vapour phase. An attempt to explain the mechanism of the dimerization is quoted. Basing on the Duhem‐Margules equation and the thermodynamic stability of the system, it was deduced that except copper(I) chloride and potassium chloride, a compound of these two must exist in the vapour phase. The vapour pressures of the components in the pseudo‐binary system are derived.

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Liquid Extraction from Molten Salts

Marcus

1971

Advances in Molten Salt Chemistry

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High temperature organic extraction of uranium, plutonium and americium fused chlorides

Cited by 10 publications

References 7 publications

Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms

Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms

Vapour pressure and derived informations of The CuClKCl System

Liquid Extraction from Molten Salts

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