Centrifugal extraction is a highly efficient liquid separation technology that utilizes centrifugal force to separate mixed liquids into different components. We apply centrifugal extraction technology across various industries. Our technology is use in lithium-ion battery recycling, petroleum, food, and pharmaceuticals. We deliver high efficiency, environmental sustainability, and economic benefits through our technology.
We use the centrifugal extractor in the extraction and decontamination step of used lithium iron phosphate battery recycling. Our goal is to improve the purity of valuable metals like lithium. We achieve this by effectively removing impurities and contaminants from the recycling process.
1. Battery dismantling and pretreatment
Dismantling: We dismantle the waste lithium iron phosphate batteries into their individual components. Separate out the battery shell, positive and negative pole pieces, diaphragm and other parts.
Crushing and screening: We crush the positive and negative electrode pieces into smaller fragments.
2. Leaching and dissolution
Leaching: We adopt a two-stage counter-current leaching process to leach the crushed materials. Obtain a leaching solution containing phosphate ions, ferrous ions and lithium ions through this process.
3. Extraction to remove impurities (centrifugal extractor application)
Extractant selection: We analyze the components in the leaching solution to determine the best extraction approach.
Centrifugal extraction: We utilize the centrifugal extractor to carry out the extraction operation on the leach solution. We operate the centrifugal extractor at a high rotational speed, generating a strong centrifugal force field. Allowing them to undergo an extraction reaction.
Multi-stage extraction and back-extraction: We improve the extraction efficiency and purity of lithium through a multi-stage continuous counter-current extraction process.
4. Preparation of high-purity products
Precipitation or crystallization: We add soluble carbonate to the lithium-rich solution to precipitate lithium ions. This process yields high-purity lithium carbonate or other lithium products.
Drying and packaging: After extraction and purification, we dry the lithium carbonate.
5. Tail gas treatment and environmental protection measures
Tail gas treatment: We treat the waste gas with purification processes. Use methods like secondary combustion and water washing to meet discharge standards.
Environmental protection measures: We follow strict environmental regulations throughout the recycling process. Minimize waste generation and discharge through effective measures.
Advantages of centrifugal extractor in the recycling process
High efficiency: Centrifugal extractors have large processing capacities and high extraction efficiencies.
Environmental protection: We use the centrifugal extractor to perform precise extraction and back-extraction operations. This helps us reduce the generation and discharge of wastewater, slag, and other pollutants.
Economy: We design centrifugal extractor equipment to be simple and cost-effective. This reduces maintenance and treatment costs.
We use centrifugal extractors to play a crucial role in recycling waste lithium iron phosphate batteries. They improve the effectiveness of recycling treatment through their high efficiency and environmental protection advantages.
