Waste and old power battery ternary-system anode material processing method
A positive electrode material and power battery technology, which is applied in the field of waste power battery ternary positive electrode material processing, can solve the problems of complex operation of the processing method, low metal recovery rate, and environmental pollution, and achieve environmental friendliness, high metal recovery rate, and production efficiency. High benefit effect
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Embodiment 1
[0058] A method for treating a waste power battery ternary system positive electrode material, comprising the steps of:
[0059] According to the solid-liquid ratio of the ternary positive electrode material and alkali solution as 1:1, add the ternary positive electrode material into the sodium hydroxide solution with a concentration of 2mol / l, adjust the temperature to 60°C, and the pH value to 12, and react 1 hour, filter after the reaction, collect the first filtrate and the first filter residue;
[0060] According to the solid-liquid ratio of 1:5, add the first filter residue to the water, adjust the pH value to 0.5, add hydrogen peroxide, the mass ratio of the hydrogen peroxide and the first filter residue is 1:2, adjust the temperature to 50°C, and react for 2 hours , filter after the reaction, collect the second filtrate and the second filter residue;
[0061] Determine nickel ion, lithium ion, cobalt ion and manganese ion concentration in the second filtrate with atom...
Embodiment 2
[0068] A method for treating a waste power battery ternary system positive electrode material, comprising the steps of:
[0069] According to the solid-to-liquid ratio of the ternary positive electrode material and alkali solution as 1:3, add the ternary positive electrode material into the sodium hydroxide solution with a concentration of 6 mol / l, adjust the temperature to 85°C, and the pH value to 13. Reaction 3 hour, filter after the reaction, collect the first filtrate and the first filter residue;
[0070] According to the solid-liquid ratio of 1:8, add the first filter residue to water, adjust the pH value to 1.2, add potassium sulfite, the mass ratio of the potassium sulfite and the first filter residue is 1:4, and adjust the temperature to 75°C , reacted for 5 hours, filtered after the reaction, and collected the second filtrate and the second filter residue;
[0071] Determine nickel ion, lithium ion, cobalt ion and manganese ion concentration in the second filtrate ...
Embodiment 3
[0078] A method for treating a waste power battery ternary system positive electrode material, comprising the steps of:
[0079] According to the solid-liquid ratio of the ternary positive electrode material and alkali solution as 1:6, add the ternary positive electrode material into the sodium hydroxide solution with a concentration of 10mol / l, adjust the temperature to 95°C, and the pH value to 14, and react 5 hour, filter after the reaction, collect the first filtrate and the first filter residue;
[0080] The solid-liquid ratio is 1: 10, the first filter residue is added to the water, the pH value is adjusted to 2, ferrous chloride is added, the mass ratio of the ferrous chloride and the first filter residue is 1: 5, and the temperature is adjusted to 95°C, reacted for 7 hours, filtered after the reaction, and collected the second filtrate and the second filter residue;
[0081] Determine nickel ion, lithium ion, cobalt ion and manganese ion concentration in the second fi...
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