FIELD: metallurgy.
SUBSTANCE: charge consists of raw material containing noble metals, slag forming substances for slag production with base of 0.2-0.35 of flux forming elements and silicon as solvent. The method consists in preparing charge, in melting and conditioning the most heat resistant noble material in charge at temperature 50-100°C above temperature of melting. Further charge is cooled and metal phase is separated from slag and flux.
EFFECT: increased extraction of noble metals into metal phase.
2 cl, 2 tbl, 3 ex
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