Method for recycling valuable metals from lead anode slime

The invention provides a method for recycling valuable metals from lead anode slime, which comprises the following steps: preprocessing anode slime to obtain oxide anode slime, and performing chloration and leaching on 65-78 wt% of oxide anode slime, 15-20 wt% of sodium chloride and 5-20 wt% of sodium chlorate to obtain an acid leaching liquor and acid leaching residue; performing cooling crystallization on the acid leaching liquor and filtering to obtain first filter residue and a first filter liquor; hydrolyzing, insulating and filtering the first filter liquor to obtain second filter residue and a second filter liquor; recycling antimony from the second filter residue; adding iron powder into the second filter liquor and reducing and filtering to obtain a third filter liquor and third filter residue; recycling bismuth, copper and arsenic from the third residue; taking 70-95 wt% of the acid leaching residue and 5-30 wt% of a reducing agent and performing alkaline leaching to obtain alkaline leaching liquor and alkaline leaching residue; recycling tellurium from the alkaline leaching liquor; and performing pyrogenic process smelting on the alkaline leaching residue to recycle gold and silver. The method solves the technical problems that in the prior art, antimony is difficult to leach, and the recovery rate of valuable metals such as copper, bismuth, antimony, tellurium and the like is low.