1 results about "Ferric oxalate" patented technology

This invention provides a process and equipment for the synergistic recovery of metals from waste lithium-ion batteries through mechanical activation and photolysis extraction, relating to the field of metal material recycling technology. The process includes the following steps: Step S1, mixing ternary cathode material and lithium iron phosphate cathode material, washing and drying to remove surface dirt and residual electrolyte, obtaining a mixed cathode material; Step S2, homogenizing the mixed cathode material and ball milling to obtain a pretreated cathode material. This scheme ultimately achieves the destruction of the cathode material's crystal structure through mechanical force, increasing reactivity and metal leaching rate, reducing the amount of chemical reagents used, and utilizing the photosensitivity of ferric oxalate complexes to achieve efficient separation and recovery of iron under light conditions, avoiding the use of additional precipitants, reducing secondary pollution, and featuring advantages such as simple operation, low energy consumption, and no secondary pollution. It effectively achieves efficient separation and purification of multiple metal elements in waste lithium-ion batteries, realizing high-value recovery of valuable metals.