Volatile oil extraction and separation has long been a major problem constraining the production of Chinese herbal medicine because often no or only a very small amount of volatile oil is collected in the course of production in factories. This project successfully developed a volatile oil extraction and separation unit adopting spiral separation technology to solve the volatile oil extraction and separation problems.
Financed by the National Natural Science Foundation, "863", National Science and Technology Support Program and Special Research Found for TCM supported by State Administration of Traditional Chinese Medicine of China, this project has the following innovations:
1.It can extract , collect and separate both light oil and heavy oil simultaneously.
2.The rate of volatile oil extraction is high. It has been proven that the new unit increases the rate of volatile oil extraction by more than 10 times than the existing equipment, which takes the lead at home.
3. To fully preserve aromatic odor of plants.
4. The high-purity volatile oil can be used for the production of essential oils meeting international standards.
5. multi-batch production demonstrates small differences between batches, output stability, composition stability of essential oil.
6.The distillation and condensing temperature can be adjusted for the extraction of volatile oil of different nature.