Method for separating and purifying antimony and enriching gold and silver from precious antimony alloy

The invention discloses a method for separating and purifying antimony and enriching gold and silver from a precious antimony alloy, which belongs to the technical field of metal smelting, and comprises the following steps of: putting a precious antimony raw material into a vibrating pulverizer, after pulverizing, putting a graphite crucible filled with powdery precious antimony into a vacuum furnace, opening circulating water, closing an air valve, opening a vacuum mechanical pump, and starting the vibrating pulverizer; when the pressure in the vacuum furnace is reduced to 60-100 Pa, a heating switch is turned on, and the vacuum degree, the heating temperature, the heating rate and the heat preservation time are set; and after heat preservation is finished, naturally cooling to room temperature in a vacuum environment, opening an air valve, opening a furnace cover after the pressure in the vacuum furnace is recovered to atmospheric pressure, and collecting residues and volatile matters to obtain pure antimon