The recycling process of waste lithium iron phosphate batteries involves several steps, including discharge, shell breaking, disassembly, crushing, screening, leaching, grinding, calcination, ball milling, neutralization and impurity removal, freezing crystallization, evaporation and concentration, iron sinking, lithium sinking, etc. In this process, the application of the combined extraction centrifugal extractor can improve the recovery efficiency and product quality.

The first is the discharge process, that is, the waste battery is discharged to reduce the energy storage inside the battery. This is followed by a process of breaking and disassembling the used battery casing, which is broken and disassembled so that the next step can be taken on the internal battery structure.

This is followed by the crushing and screening process, and the combined extraction centrifugal extractor can be used for the crushing and screening of waste batteries to separate out useful materials. By adjusting parameters such as centrifugal force and temperature, the combined extraction centrifugal extractor can achieve efficient separation and purification of the target components.

Then there is the leach and crushing process, through the waste battery solution leach and crushing treatment, useful materials can be extracted from the waste battery.

This is followed by the calcination and ball milling process, through which the purity and activity of the recovered material can be further improved.

Then there is the neutralization and impurity removal process, which increases the purity of the recovered material by adding chemicals to neutralize and remove harmful substances.

Finally, the process of freezing crystallization, evaporation concentration, sinking iron and sinking lithium, through freezing crystallization and evaporation concentration, the target substance can be further purified and concentrated. The iron and lithium sinking processes are used to settle and separate the target material.

The recycling process of waste lithium iron phosphate battery is complicated, but the application of combined extraction centrifugal extractor can improve the recovery efficiency and product quality. By adjusting parameters such as centrifugal force and temperature, efficient separation and purification of target components are realized. Therefore, strengthening the research and application of the combined extraction centrifugal extractor in the recycling process of waste lithium iron phosphate batteries is of great significance for promoting the utilization of waste batteries.