| abstract |
The invention discloses a method for recovering valuable metals in anode materials of waste lithium batteries. The method comprises: adding ammonia water to a solution containing lithium manganese cobalt nickel elements, obtaining manganese hydroxide and a solution containing lithium cobalt nickel elements, and realizing Separation of manganese element; use LMO to synthesize the lithium chloride solution produced by HMO, synthesize lithium hydroxide, use HMO to adsorb Li ions in the mixed solution, realize the separation of Li ions, and perform an acidic manganese ion sieve on the mixed solution to complete the separation of lithium and manganese. Separation; adjusting the pH of the solution, adding ammonia water and sodium carbonate to the solution, and precipitating cobalt ions into cobalt carbonate to achieve the separation of cobalt elements; adjusting the pH of the solution, adding ammonia water and sodium carbonate to the solution, and precipitating nickel ions into basic carbonic acid Nickel, realize the extraction of nickel element. |