Using centrifugal extractor to extract and recover dimethylformamide (DMF) from wastewater is an advanced technology that is efficient, fast and suitable for continuous production. The core is to use centrifugal force to accelerate the mixed mass transfer and rapid separation of liquid-liquid phases. Zhengzhou Tiei Extraction's CWL-M series centrifugal extraction system can provide a mature solution. The system adopts a multi-stage countercurrent extraction process to reduce the DMF concentration in wastewater, while the recovered DMF purity meets the standard and meets the industrial reuse standard.
The core equipment of solvent extraction is the centrifugal extractor. The new generation CWL-M centrifugal extractor independently developed by Zhengzhou Tiei Extraction has excellent performance. It can easily separate the organic phase and the aqueous phase through the effect of efficient centrifugal force, with high extraction efficiency and good extraction effect. The equipment has a significant energy consumption advantage, which is only one-tenth of the traditional model, which has a significant value in reducing the operating costs of enterprises and improving economic benefits.
DMF Wastewater Extraction Process
- Extraction: DMF wastewater and the extractant enter the CWL-M centrifugal extractor through different inlets in a certain proportion. After 2-3 levels of precision extraction, most of the DMF is separated from the main body of the wastewater, so that the wastewater is purified.
- Stripping: The extractant rich in DMF enters the stripping stage, reacts with an appropriate amount of liquid alkali in the CWL-M centrifugal extractor. After 2-3 levels of stripping and alkali washing, not only can the extractant be recycled, but the back-extracted sodium phenolate solution can also be recycled through further processing. This complete process truly achieves the reduction, harmlessness and resource disposal of DMF wastewater.
Advantages of Centrifugal Extractor
- High efficiency and speed: high mixing mass transfer efficiency, extremely fast separation speed, large processing throughput, and small footprint.
- Short residence time: particularly suitable for processing materials that are easy to decompose and emulsify.
- Small stage retention: small amount of liquid held in the equipment, reducing solvent retention and potential risks.
- Flexible operation: easy to achieve multi-stage countercurrent extraction and improve recovery rate.
- Strong adaptability: can handle systems with small density difference and easy emulsification.
- High degree of automation: easy to achieve continuous and automatic control.
Centrifugal extraction technology is an efficient, fast and continuously operated advanced means of extracting and recovering DMF from wastewater. Compared with traditional extraction column, centrifugal extractor has significant advantages in processing efficiency, speed, floor space and automation, and are an effective way to achieve DMF resource recovery and wastewater treatment that meets standards.
Zhengzhou Tiei Extraction has more than ten successful cases of similar projects and can provide customers with full-process services including process design, equipment manufacturing, installation and commissioning. Centrifugal extractor is particularly suitable for the treatment of high-concentration DMF wastewater in the pharmaceutical, chemical, electronic and other industries, which can not only meet environmental protection requirements, but also achieve resource recycling.
Email: sales@tieiextraction.com
Whatsapp: +86 19069612820
