Extraction column and extraction tank are common liquid-liquid extraction equipment in industrial production, and they have significant differences in structure, working principle and application scenarios. An accurate understanding of the difference between the two can help companies choose the right equipment according to their needs.

An extraction column is a longitudinal device in which liquids are separated by countercurrent or parallel flow. It is usually equipped with internal packing or tray for enhanced mass transfer efficiency.

The advantage of the extraction tower is that it can handle large flow of liquid and has high separation efficiency, which is suitable for industrial scenarios with large output, such as petrochemical, pharmaceutical and metallurgical fields. However, due to its complex structure, equipment installation and operation require high technical support.

The extraction tank is a horizontal device, usually by mechanical agitation or natural settlement to complete the extraction and separation of liquids.

The advantages of the extraction tank are simple operation, easy cleaning and maintenance, especially suitable for small and medium-sized production lines or laboratory applications. In contrast, its separation efficiency may not be as high as the extraction tower, but it is flexible and has a large footprint.

When selecting equipment, it is necessary to consider the processing capacity, separation requirements, and use environment. If the production scale is large and continuous operation is required, the extraction tower is a better choice. For experimental production or small batch applications, the extraction tank is more suitable. With precise selection, companies can maximize the efficiency of equipment use while saving operating costs.