In the modern chemical industry, efficient and environmentally friendly material separation and purification technologies are key drivers of industrial upgrading. Especially for the recycling and reuse of important organic solvents such as benzene and xylene, the traditional batch reactor operation with manual handling can no longer meet the growing demands for production capacity and increasingly stringent environmental standards. To address this challenge, Zhengzhou Tiei Extraction has developed the innovative CWL-M Centrifugal Extractor, which has been widely welcomed by chemical enterprises for its outstanding performance and application results.
Centrifugal Extraction Process: An Efficient and Environmentally Friendly Solution
The purpose of this process is to remove organic acids and inorganic acids from benzene-containing solutions and purify the benzene for recycling and reuse. The entire process consists of two steps: caustic washing deacidification and water washing desalination.
Caustic Washing Deacidification
The CWL-M Centrifugal Extractor demonstrates unique advantages in the deacidification of benzene and xylene solutions. During the process, a metering pump precisely feeds the sodium hydroxide solution and water into the heavy-phase inlet, while the acid-containing benzene solution is pumped into the light-phase inlet. The two phases rapidly and thoroughly contact each other in the mixing zone of the extractor. Driven by the strong centrifugal force generated by the high-speed rotating rotor, the organic acids are quickly neutralized by the sodium hydroxide solution. Subsequently, the organic phase and aqueous phase are efficiently separated in the high-speed separation zone. This process not only significantly improves deacidification efficiency but also greatly reduces chemical reagent consumption and wastewater discharge, meeting the high standards of green manufacturing.
Water Washing Desalination
After the deacidification process, a two-stage counter-current water washing process is carried out using the CWL-M Centrifugal Extractor to further remove any residual salts. This step also relies on the centrifugal extractor's high-efficiency liquid-liquid separation capability, ensuring that the benzene solution achieves an extremely low residual salt content after multi-stage counter-current washing, thereby providing a solid foundation for subsequent high-quality applications.
In addition, the electrostatic discharge device integrated inside the equipment effectively eliminates potential safety hazards during operation, ensuring the stability and safety of the entire process.
Technical Highlights of the CWL-M Centrifugal Extractor
The CWL-M series Centrifugal Extractor features a compact footprint, high stage efficiency, low energy consumption, a fully enclosed design, and excellent operational flexibility, making it an ideal choice for liquid-liquid separation in the chemical industry.
The main unit is manufactured from highly corrosion-resistant composite materials, which significantly extend the equipment's service life while reducing maintenance costs. Particularly noteworthy is that the equipment has been designed with resource conservation in mind. By minimizing the residual liquid remaining inside the machine during shutdown, it substantially reduces the consumption of caustic solution and water, helping enterprises achieve considerable production cost savings.
The CWL-M centrifugal extraction technology developed by Zhengzhou Tiei Extraction has achieved remarkable results in improving production efficiency and reducing labor intensity, while also setting a new benchmark in environmental protection and resource recycling. It provides chemical enterprises with a continuous and highly efficient solution for benzene solution deacidification and purification, promoting the development of the chemical industry toward a greener and more sustainable future. With continuous technological advancement and expanding application fields, Tiei Extraction will continue to lead technological innovation in the industry and contribute to the global green transformation of the chemical industry.
Email: sales@tieiextraction.com
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