The Mechanism of Tantalum Extraction in Tantalum-Hydrofluoric Acid-Tributyl Phosphate System
نویسندگان
چکیده
منابع مشابه
Tantalizing tantalum.
Element 73 was first extracted from mineral samples and described in 1802 by the Swedish chemist Anders Ekeberg. He chose the name tantalum because “when placed in the midst of acids it is incapable of taking any of them up and saturating itself with them”, in a manner reminiscent of the Greek mythological king Tantalus (pictured) who couldn’t eat or drink anything despite being surrounded by f...
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For centuries, inflammatory/foreign body reactions have plagued the attempts of clinicians to use metals for tissue and bone reconstructions. Since corrosion contributes to the rejection of metal by the body, an extremely bioinert metal - tantalum - has been successfully used in medicine. The outstanding biocompatibility and flexibility of tantalum established the basis for a growing cadre of c...
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An evaluation of the partial thermodynamic functions of the tantalum-oxygen system (up to O/Ta = 2.5) over the temperature range from 873 K to 3120 K is presented. The pressure-composition-temperature (p-C-T) relationship in the single-phase region of solid Ta has been investigated. The relationships for other phases where no data were available from the literature have been proposed by using t...
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Despite its growing technological importance and potential, the tantalum nitride system is suprisingly still relatively unexplored. Using density functional theory and the all-electron total energy full-potential linearized augmented plane-wave method, we investigate the relative stability of a host of structural phases and their associated electronic properties. Through consideration of the ef...
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Solid-electrolyte tantalum capacitors were first developed and commercially produced in the 1950s. They represented a quantum leap forward in miniaturization and reliability over existing wound-foil wet electrolytic capacitors. While the solid tantalum capacitor has dramatically improved electrical performance versus wet-electrolyte capacitors, especially at low temperatures, today’s electronic...
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ژورنال
عنوان ژورنال: Journal of the Japan Institute of Metals and Materials
سال: 1962
ISSN: 0021-4876,1880-6880
DOI: 10.2320/jinstmet1952.26.1_60