The Distillation of Lithium Metal

Epstein, Leo F.; Howland, William H.

doi:10.1126/science.114.2965.443

Cited by 8 publications

(4 citation statements)

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“…The anodic reaction of hydrogen on platinum has been studied by a number of authors in both acid (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)16) and basic (1,6,(11)(12)(13)17) media, but some questions continue to exist as to the nature of the…”

Section: Hydrogen Oxidation On Platinummentioning

confidence: 99%

“…The purest commercially available lithium produced today approaches 99.99% purity (Table I) and is prepared chiefly by the electrolytic reduction of a fused eutectic mixture of lithium chloride and potassium chloride (1). Purification beyond this level either by zone refining (2) or by distillation (3)(4)(5)(6)(7) has not been achieved. Attempts to purify lithium by vacuum distillation have generally been ineffective because of the small differential vapor pressures between lithium and its contaminants at high temperatures.…”

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confidence: 99%

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Purification of Lithium Metal by High-Vacuum Fractional Distillation

Schmidt¹

1966

J. Electrochem. Soc.

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Section: Hydrogen Oxidation On Platinummentioning

confidence: 99%

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confidence: 99%

Purification of Lithium Metal by High-Vacuum Fractional Distillation

Schmidt¹

1966

J. Electrochem. Soc.

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“…Nowotny-Juza compounds are hygroscopic, thereby, making handling quite difficult. Also, molten lithium reacts with quartz to make lithium silicates, which also narrows available purification techniques [27]. Typical non-solution based purification methods consist of: 1) dynamic vacuum sublimation 2) static vacuum sublimation 3) vacuum distillation, and 4) zone refining.…”

Section: Introductionmentioning

confidence: 99%

Static sublimation purification process and characterization of LiZnAs semiconductor material

Montag

Reichenberger

Edwards

et al. 2016

Journal of Crystal Growth

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Refinement of the class A I B II C V materials continue as a candidate for solid-state neutron detectors. Such a device would have greater efficiency, in a compact form, than present day gasfilled 3 He and 10 BF 3 detectors. The 6 Li(n,t) 4 He reaction yields a total Q value of 4.78 MeV, larger than 10 B, and easily identified above background radiations. Hence, devices composed of either natural Li (nominally 7.5% 6 Li) or enriched 6 Li (usually 95% 6 Li) may provide a semiconductor material for compact high efficiency neutron detectors. A sub-branch of the III-V semiconductors, the filled tetrahedral compounds, A I B II C V , known as Nowotny-Juza compounds, are known for their desirable cubic crystal structure. Starting material was synthesized by equimolar portions of Li, Zn, and As sealed under vacuum (10-6 Torr) in quartz ampoules with a boron nitride lining, and reacted in a compounding furnace [1]. The synthesized material showed signs of high impurity levels from material and electrical property characterization. In the present work, a static vacuum sublimation of synthesized LiZnAs loaded in a quartz vessel was performed to help purify the synthesized material. The chemical composition of the sublimed material and remains material was confirmed by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). Lithium was not detected in the sublimed material, however, near stoichiometric amounts of each constituent element were found in the remains material for LiZnAs. X-ray diffraction phase identification scans of the remains material and sublimed material were compared, and further indicated the impurity materials were removed from the synthesized materials. The remaining powder post the sublimation process showed characteristics of a higher purity ternary compound.

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“…Nowotny-Juza compounds are hygroscopic, thereby, making handling quite difficult. Also, molten lithium reacts with quartz to make lithium silicates, which also narrows available purification techniques [25]. Typical nonsolution based purification methods consist of: 1) dynamic vacuum sublimation, 2) static vacuum sublimation, 3) vacuum distillation, and 4) zone refining.…”

mentioning

confidence: 99%