1. ** tertiary countercurrent extraction **

In this step, the essence raw material is mixed with a suitable solvent in a three-stage countercurrent extraction system. The solvent adjusts pH through the acid in the material system to promote the separation of essence and impurities. The combined extraction centrifugal extractor uses centrifugal force to accelerate the separation of essence and solvent, and improves the extraction efficiency and purity.

2. ** First level pickling system **

The extracted essence solution enters the primary pickling system, and the residual impurities are further removed by adding acid. The combined extraction centrifugal extractor continues to exert its advantages of centrifugal separation in this step to ensure the high purity of the essence solution.

3. ** three-stage washing system **

Next, the essence solution enters the three-stage washing system, which removes the acidic residue by multi-stage washing. The efficient centrifugal separation capacity of the combined extractor can quickly remove impurities and ensure the purity and quality of the final product.

4. ** Purification and storage **

After the above steps, the purified flavor solution is filtered and further purified, and finally stabilized and stored. The efficient purification system of the combined extraction centrifugal extractor ensures the high quality and purity of the essence, which meets the strict requirements of the food, beverage, cosmetics and cleaning products industries

Through the application of combined extraction centrifugal extractors in the purification process of flavor, the production enterprises can significantly improve the purity and quality of flavor, while reducing energy consumption and production costs. This efficient and economical purification solution has made the combined extraction centrifugal extractor widely used and recognized in the industry.

** Combined extraction centrifugal extractor application in citric acid production **

Citric acid is an important organic acid that is widely used in the food and beverage industry as a sour, flavoring and preservative, as well as in the chemical and cosmetic industries as an antioxidant and plasticizer. Due to its wide application, citric acid has become one of the most demanded organic acids in the world. In the production of citric acid, microbial fermentation is widely used because of its economic and yield advantages. However, the separation and purification of citric acid fermentation solution has been a major challenge in production. Although the current commonly used calcium salt process is mature, it will produce a lot of waste gas and wastewater, and the yield of citric acid is also low.

The separation and purification of citric acid from citric acid fermentation by centrifugal solvent extraction has gradually become an ideal process choice due to its high separation efficiency, continuous operation and less pollution. The combined extraction centrifugal extractor plays an important role in this process.