METHOD OF FABRICATION OF TANTALUM POWDER Russian patent published in 2008 - IPC B22F9/18 C22B34/24 

Abstract RU 2338628 C2

FIELD: metallurgy.

SUBSTANCE: method includes reduction of fluorine tantalite of potassium with liquid sodium in medium of melted saline bath of halogenides of alkali metals by means of alternate portioned dozing of sodium, and further - of fluorine tantalite of potassium. Fluorine tantalite of potassium is introduced into mixtures with part of the charge of halogenides of alkali metals, used for making of a saline bath. Amount of halogenides of alkali metals in the mixture introduced into melt with fluorine tantalite of potassium constitutes from 60 to 125% (wt) from weight of fluorine tantalite of potassium.

EFFECT: dimension in size of powder particles, reduction of duration of reduction process, decreasing of power consumption for melting of saline charge and forced cooling of reaction vessel.

1 tbl, 1 ex

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RU 2 338 628 C2

Authors

Berezko Vladimir Vasil'Evich

Dobrusin Sergej Jur'Evich

Obgol'Ts Oleg Jakovlevich

Angilevko Valerij Nikolaevich

Frolova Larisa Mikhajlovna

Shevljakov Valerij Vladimirovich

Dates

2008-11-20Published

2005-10-05Filed