Extraction of heptafluorotantalate from fluoride-sulphuric acid solutions
Автор: Masloboeva S.M., Duboshin G.N., Arutyunyan L.G.
Журнал: Вестник Мурманского государственного технического университета @vestnik-mstu
Статья в выпуске: 2 т.12, 2009 года.
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Laboratory investigations and experiments on solvent extraction of tantalum from fluoride-sulphuric acid solutions using octanol-1 have been presented. Conditions for precipitating high-purity potassium heptafluorotantalate (PFT) from tantalum re-extracts have been determined. A flowsheet has been developed for the processing of metallic tantalum-bearing wastes with the production of PFT, with optimal regimes for individual process stages. The 500 kg of high-quality PFT accumulated during the testing have been used to produce high-capacity, high-quality tantalum powders for advanced capacitor making.
Tantalum, fluoride-sulphuric acid solutions, octanol, mixer-settler extractor, potassium heptafluorotantalate, tantalum powder, solvent extraction, cyclohexanol, scrubbing, re-extraction, re-extract, precipitation, sodium-thermal reduction
Короткий адрес: https://sciup.org/14294057
IDR: 14294057
