The invention discloses a method for recycling
lithium,
nickel,
cobalt and
manganese from a waste ternary
anode material. The method comprises the steps of with the waste ternary
anode material as theraw material, adding a carbon
reducing agent, carrying out mixing and dosing, carrying out
roasting reduction at 500-700 DEG C in a protective
atmosphere, adding the roasted product into water, carrying out water-soluble reaction, after the reaction is finished, filtering to obtain
lithium carbonate filtrate and a filter residue I, carrying out
sulfuric acid leaching on the filter residue I so asto obtain a filtrate containing
nickel,
cobalt and
manganese and a filter residue II, adding
sulfate so as to adjust the proportion of
nickel,
cobalt to
manganese in the filtrate containing nickel, cobalt and manganese, carrying out
precipitation reaction on the filtrate containing nickel, cobalt and manganese, a
sodium hydroxide solution and an
ammonia water solution in the protective
atmosphere, controlling the
reaction temperature at 50-70 DEG C and the pH value at 10-11, obtaining ternary precursor
slurry after the
precipitation reaction, filtering, washing, and
drying, so as to obtain the ternary precursor. The method has the beneficial effects that the separation condition of
lithium carbonate is simple, the costs of leaching processes of nickel, cobalt and manganese and the regeneration process of the ternary material precursor are low, and the recycling rate is high.