Stage 1: Platinum-bearing ore is thoroughly ground and mixed with various fluxes, then poured into a rotary furnace. Lead is then added. After complete melting and absorption of platinum into the lead, the lead is drained.

Stage 2: The lead ingots are placed in cupolas and melted after heating. After draining the molten lead, platinum-bearing buttons accumulate at the bottom of the furnace. These buttons contain precious metals.

Stage 3: The silver buttons containing platinum undergo an acid leaching process. After dissolution in acids and necessary reagents, other metals precipitate. The resulting precipitate is dried, placed in a crucible, remelted with a flux, and finally, the molten platinum is poured into molds to solidify into ingots after cooling.