FIELD: process engineering.
SUBSTANCE: invention relates to reclamation of barrier metal powders, namely those of niobium, tantalum or alloys thereof. For this, metal is heated to temperature that exceeds melting point of reclaiming material. The latter is most frequently represented by lanthanum, yttrium or cerium. In using lanthanum, reclamation is performed at 940-1150°C. Besides reclamation is carried out in two stage. Note that barrier metal powder is reclaimed that has been produced in reclaiming barrier metal oxide by gaseous lanthanum, yttrium or cerium.
EFFECT: powder with low content of sodium, potassium and magnesium, production of capacitors with high specific capacitance.
6 cl, 5 ex
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