Method for enriching and recovering tellurium from high-bismuth precious lead

The invention relates to a method for enriching and recovering tellurium from high-bismuth precious lead, which is characterized by comprising the following steps: (1) antimony removal: putting the high-bismuth precious lead into a silver separation furnace, controlling the temperature and reaction time in the furnace, oxidizing most of antimony in precious lead alloy into Sb2O3 and volatilizing into flue gas, and oxidizing lead into PbO, forming lead-antimony oxidizing slag with non-volatile high-valence antimony-containing oxide, wherein the lead-antimony oxidizing slag floats on the surface of the precious lead alloy liquid, and valuable metals such as Bi, Cu, Au, Ag and the like continue to be remained in the precious lead alloy liquid; and (2) preparing tellurium slag: adding caustic soda flakes into the precious lead alloy liquid in proportion, and controlling the temperature and the reaction time at the same time, so that most tellurium in the precious lead is enriched in the tellurium slag after being