In the context of the increasing importance of resource recycling, vanadium, as an important strategic metal, plays a key role in the fields of steel, new energy, aerospace, etc. More than 90% of the world's vanadium is used in the steel industry. Vanadium microalloying can significantly improve the strength, toughness and corrosion resistance of steel. However, traditional vanadium extraction processes such as sodium roasting have defects such as high energy consumption and high pollution, and there is an urgent need to develop green and efficient alternative technologies. Solvent extraction technology in hydrometallurgy has become a research hotspot due to its environmental protection and high selectivity, and the choice of vanadium extraction equipment directly determines the economy and feasibility of the process.
Limitations of Traditional Extraction Processes
Traditional mixer settler and stirred tank reactor have obvious shortcomings in vanadium extraction: the equipment occupies a large area, has low mass transfer efficiency, has a long phase separation time, and is difficult to achieve continuous production. When P507 is used as the extractant, conventional equipment requires a mixing time of more than 30 minutes, and the extraction rate is generally less than 95%. These problems have seriously restricted the efficient recovery of vanadium resources, prompting the industry to seek more advanced extraction equipment.
Application of CWL-M Centrifugal Extractor
The CWL-M centrifugal extractor developed and produced by Zhengzhou Tiei Extraction Technology Co., Ltd. solves the pain points of traditional equipment through innovative design. Its core advantages are reflected in four aspects:
- Revolutionary improvement in mass transfer efficiency: Compared with traditional equipment, the mass transfer time is shortened from hours to seconds, and the single-stage extraction efficiency is increased by more than 40%.
- Advantages of continuous production: The modular design supports 24-hour continuous operation, the equipment occupies only 1/5 of the traditional mixer settler, and can achieve countercurrent extraction through multi-stage series connection.
- Significant reduction in operating costs: The amount of liquid stored is reduced, the amount of organic phase circulation is reduced, and with the precise phase interface control technology, the entrainment loss is controlled within the required range.
- Intelligent control system: Integrated pH and flow online monitoring modules can optimize the extraction parameters in real time to adapt to the fluctuating conditions of vanadium solutions with different concentrations.
Centrifugal extraction technology will demonstrate greater value in emerging fields such as vanadium battery electrolyte purification and red mud vanadium extraction. As a key link in the upgrade of hydrometallurgical equipment, the CWL-M series centrifugal extraction equipment is redefining the industrial standard of vanadium extraction and providing core technical support for the green transformation of the global vanadium industry chain.
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