Global retired lithium batteries will exceed 11 million tons by 2030, rich in lithium, nickel, cobalt and manganese. Hydrometallurgy dominates recycling, and centrifugal extraction is the core purification unit.
After discharging, crushing and acid leaching of batteries, valuable metals dissolve into liquid. Selective extractants (P204, P507, Cyanex272, crown ether) separate impurities, Mn, Co, Ni and Li step by step. Different from gravity settling tanks, centrifugal extractors create 500-1000G centrifugal force to complete mixing and phase separation in seconds, resisting emulsification.
It features wide phase ratio adaptability, acid-resistant fully sealed structure and automatic control. Compared with traditional tanks, it cuts reagent consumption, solvent loss and energy use. The recovery rates reach Ni＞98%, Co＞96%, Mn＞92%, Li＞85%. Final nickel/cobalt/manganese sulfate meet battery-grade standards. This technology lowers acid/alkali cost by 30%-50%, reduces wastewater COD by over 85%, becoming the mainstream choice for lithium battery recycling.
