With the rapid development of new energy vehicles and electronic products, the global demand for lithium-ion batteries continues to surge. However, due to their limited lifespan, it is estimated that by 2030, more than 11 million tons of spent lithium-ion batteries will be generated worldwide. These “urban mines” are rich in valuable metals such as lithium, cobalt, nickel, and manganese. If not properly treated, they will not only lead to severe resource waste but also pose risks of heavy metal pollution and safety hazards. Therefore, the efficient and environmentally friendly recycling of spent lithium-ion batteries has become an urgent need for the industry.
At present, hydrometallurgy has become the mainstream technology for the resource utilization of battery black mass, owing to its high recovery rates and high-purity products. Its core lies in the efficient separation and purification of metals, among which solvent extraction plays a critical role in the separation of valuable metals such as nickel, cobalt, and lithium, thanks to its advantages of strong selectivity, short process flows, and low energy consumption.
Zhengzhou Tiei Extraction has been deeply engaged in the field of liquid-liquid extraction for many years, and its CWL-M series centrifugal extractors provide efficient and stable equipment solutions for the hydrometallurgical recovery of battery black mass.
The typical process flow includes:crushing and leaching -- impurity removal -- centrifugal extraction -- washing -- stripping -- product preparation. During the extraction stage, the pretreated leach solution and extractant undergo efficient mixing and mass transfer inside the CWL-M centrifugal extractor. Target metals are selectively transferred into the organic phase, followed by rapid phase separation under strong centrifugal force, achieving efficient separation from impurities.
Advantages of the CWL-M Centrifugal Extractor in Battery Recycling
1.High efficiency & energy saving: Mass transfer is intensified under a centrifugal field, with large processing capacity and power consumption only 1/3 to 1/10 of conventional equipment.
2.Thorough separation: The overhead drum design eliminates leakage risks, ensures clear phase separation, and minimizes entrainment.
3.Flexible adaptability: Available in various materials (stainless steel, titanium, fluoropolymer, etc.), suitable for strong acid and strong alkali systems.
4.Intelligent operation: Automated control enables unattended operation, ensuring continuous and stable production.
At present, this technology has been successfully applied in multiple hazardous waste treatment and material recycling enterprises. The extraction efficiency of nickel and cobalt remains stable at over 98%, and the stripping solution demonstrates excellent quality, providing a reliable guarantee for the production of high-purity battery materials such as cobalt sulfate and nickel sulfate.
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Email: sales@tieiextraction.com
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