METHOD OF PRODUCING TANTALUM AND NIOBIUM FROM THEIR COMPOUNDS

FIELD: methods of production of tantalum and niobium from their chemical compounds. SUBSTANCE: method includes reduction of chemical compounds by alkali metal, and subsequent leaching of residue of alkali metal from powders of tantalum and niobium obtained in elementary state. Subjected to reduction...

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Bibliographische Detailangaben
1. Verfasser:	CHERNYKH V.P
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	FIELD: methods of production of tantalum and niobium from their chemical compounds. SUBSTANCE: method includes reduction of chemical compounds by alkali metal, and subsequent leaching of residue of alkali metal from powders of tantalum and niobium obtained in elementary state. Subjected to reduction are polymer metalloorganic compounds of tantalum and niobium in autoclave, in liquid medium consisting of melt of metalloorganic compounds and alkali metal at temperature not below the temperature of decomposition of polymer compounds into separate monomers with subsequent cooling of obtained products down to room temperature, release from autoclave of excessive pressure of gaseous substances and leaching at normal conditions of metalloorganic compound of alkali metal with solution of hydrogen peroxide from powders of tantalum and niobium produced in elementary state. EFFECT: reduced cost of process. 1 dwg