METHOD FOR SEPARATING GOLD-SILVER ALLOYS BY VACUUM DISTILLATION AND DEVICE FOR REALIZATION THEREOF

The invention relates to non-ferrous metallurgy and to the metallurgy of precious metals, in particular, to the separation technology for gold-silver alloys and mixtures using the vacuum distillation method, for producing high-purity metals. Separating gold-silver alloys is performed using an apparatus comprising a high vacuum chamber with a melting crucible arranged therein; a heating element in the form of an induction coil is arranged around the crucible, which induction coil is configured in association with a tilting device capable of tipping over; at least one condenser with a number of entrainment separators; and an ingot mould. The apparatus is further provided with a cone head mounted above the melting crucible, which creates a directed motion of a vapour-gas mixture flow from the crucible into the condensation zone, thus increasing the pressure of the vapour-gas mixture; the apparatus is further provided with a restricting screen arranged in the vapour-gas mixture condensation zone, a heat-protection screen located between the winding of the induction coil and the crucible. The apparatus is provided with three hemispherically shaped condensers. The use of the claimed inventions makes it possible to considerably increase the apparatus performance, the purity of he separated metals, and to decrease the process cycle time.