Integrated recovery method of waste and old rare earth capacitance battery

The present invention relates to an integrated method for recovering rare earth capacitance of used batteries, a metal belonging to the technical field of resources nonferrous metallurgy rare earth, nickel and the like. Comprising the steps of: cutting waste rare earth capacitance cell, the cell component is separated; the batteries adding NaOH ultrasonic soak, and then separating the nickel foam membrane, resulting steep liquor; filtered and residue was dissolved with sulfuric acid and H2O2; filtered, the filtrate was added to the reaction Na2SO4; the reaction mixture was filtered, the residues were composite rare earth sulfates, the filtrate impurity P204, P507 extraction separation, back-extracted to obtain battery grade nickel sulfate, cobalt sulfate. The present invention achieves the battery components and recovering the battery material was classified, to achieve a battery cell with parts separated, and the battery case, the recycling pole, but also realizes the separation of rare earth, nickel and cobalt and reuse, as rare earth, nickel and other scarce resources to establish a dynamic reserve base, and low cost, economic benefit.