Known as the “King of Magnets,” NdFeB magnetic materials are widely used in industries such as new energy vehicles, wind power generation, and consumer electronics. During the manufacturing process, various types of waste materials—including machining sludge and oil-containing scrap—are generated, with the total annual volume reaching approximately 20,000 tons. These wastes are rich in high-value metal elements such as neodymium, iron, and boron, with neodymium accounting for more than 90% of the rare earth content. Through efficient recovery and purification, these valuable metals can be reused in permanent magnet materials, electronic components, and other advanced applications. This not only reduces environmental pressure but also creates significant economic value.

Hydrometallurgy: The Mainstream Route for NdFeB Scrap Recycling

At present, hydrometallurgical processing is the primary method for recycling NdFeB waste materials. In this process, chemical reagents are used to dissolve valuable metal elements from the waste, followed by separation and purification steps to obtain high-purity metal products. Hydrometallurgy offers high recovery efficiency and enables precise separation of multiple metal components, making it one of the most effective approaches for maximizing the value of NdFeB scrap.

In the solvent extraction stage of hydrometallurgy, the efficiency of liquid-liquid phase separation and purification directly affects the productivity and operating costs of the entire production line.

CWL-M Series Centrifugal Extractor: An Ideal Solution for Extraction and Separation

Developed independently by Zhengzhou Tiei Extraction Technology Co., Ltd., the CWL-M Series Centrifugal Extractor is specifically designed for metal extraction applications in hydrometallurgy and demonstrates outstanding performance in NdFeB scrap recycling.

1.Short Residence Time and High Extraction Efficiency
The CWL-M Centrifugal Extractor utilizes high-speed centrifugal force to achieve rapid mixing and separation of the two liquid phases. The significantly reduced residence time inside the equipment improves processing capacity while minimizing side reactions caused by prolonged contact, ensuring a highly efficient and stable extraction process.

2.Fast Phase Separation with Excellent Separation Performance
Featuring a unique centrifugal separation structure, the CWL-M Centrifugal Extractor enables rapid and clear phase separation under high-speed rotation, with minimal entrainment between phases. For the separation of neodymium, iron, boron, and other metal elements from NdFeB waste, the equipment provides high-precision separation and delivers high-quality intermediate products for downstream purification processes.

3.Lower Investment and Reduced Operating Costs
Compared with traditional mixer-settlers or extraction olumns, the CWL-M Centrifugal Extractor occupies much less floor space and features a compact equipment layout, significantly reducing plant construction and infrastructure costs. In addition, the centrifugal extractor operates with low energy consumption and minimal solvent entrainment losses, reducing the consumption of extractants and washing agents while lowering solvent recovery and regeneration expenses.

4.Strong Adaptability and Stable Operation
The CWL-M Centrifugal Extractor is constructed from high-quality, corrosion-resistant materials and features excellent sealing performance, enabling it to accommodate a wide variety of extraction systems (such as those involving varying acidity levels or different organic solvents). Provided that adequate upstream filtration is ensured, the equipment is capable of sustained, stable, and continuous operation over extended periods, thereby offering a reliable guarantee for industrial-scale production.

With its high recovery efficiency, low operating costs, and reliable performance, the CWL-M Series Centrifugal Extractor has become the preferred choice for many hydrometallurgical enterprises worldwide. Zhengzhou Tiei Extraction Technology Co., Ltd. specializes in the R&D and manufacturing of liquid-liquid extraction equipment, providing efficient and reliable solutions for the recovery of NdFeB waste and the recycling of metal resources.
Email: sales@tieiextraction.com
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