METHOD FOR SEPARATION OF GOLD-SILVER ALLOYS BY VACUUM DISTILLATION AND DEVICE FOR ITS IMPLEMENTATION

摘要

1. A method for separating gold-silver alloys by vacuum distillation, including heating the feedstock under high vacuum to the temperature of evaporation of the volatile components from its melt surface and their solid state transition in the condensation zone of the cooled condenser, characterized in that the condensation of metals from the vapor-gas mixture occurs in a limited the area of the cooled condenser with strictly directed movement of the vapor-gas mixture flow from the crucible to the condensation zone, which increases the pressure of the vapor-gas mixture, subject to the relation: T T, where T is the condensation temperature, T is the melting temperature of the deposited metal, creating the conditions for the appearance of a significant number of nucleation centers of crystallization. 2. Installation for implementing a method for separating gold-silver alloys by vacuum distillation, including a vacuum chamber 1 in which a melting crucible 2 is placed, around the crucible there is a heating element 4 in the form of an inductor made with a rotary device and the possibility of tipping at least one capacitor 5 with several traps 6 and mold 7, characterized in that it is additionally equipped with a heat shield 8 located between the winding of the inductor and the crucible, on top of which a conical nozzle is installed 3.3. Vacuum distillation unit for separating gold-silver alloys according to claim 2, characterized in that the capacitor is made in the form of a hemisphere. 4. A vacuum distillation unit for separating gold-silver alloys according to claim 2, characterized in that the conical nozzle is made of graphite. 5. Vacuum Distillation Unit for Separating Gold-Silver Alloys