FIELD: metallurgy.
SUBSTANCE: invention relates to nonferrous metallurgy, namely to the extraction of copper from cupriferous waste of superconductor materials. The method of utilisation of the cupriferous waste includes copper dissolution by the immersion of a basket with scrap into a copper-calcium alloy during calcium electrolysis at the temperature of 650-715°C. Dissolution of copper is performed from briquettes obtained from copper chips by pressing with subsequent vacuum annealing at the temperature of 720-750°C.
EFFECT: high level of copper extraction from the cupriferous waste of superconductor materials, and also reduction of the time of dissolution of copper from the cupriferous waste and improvement of productivity and safety of the calcium electrolysis process is provided.
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