1.Extraction method:
1.1 Impregnation method.
1.2. Seep German law.
1.3 Reflux method.
1.4. Decoction method.
1.5. Steam distillation.
1.6 Sublimation Method.
1.7. Countercurrent extraction.
1.8 Ultrasonic extraction.
1.9. Wave withdrawal extraction.
1.10 Semi-biomimetic extraction.
1.11 Supercritical fluid extraction.
2.Concentration method
2.1 According to the system pressure.
2.1.1. Evaporation and concentration.
2.1.2. Concentration under reduced pressure.
2.2.2.1. Single-effect decompression concentration.
2.2.2.2 Multi-effect decompression concentration.
2.3. Film concentration.
2.3.1 liter of film concentration.
2.3.2. Falling film concentration.
2.3.3. Centrifugal film concentration.
2.3.4. Scraper film concentration.
2.4 molecular distillation.
2.5. Reverse osmosis membrane concentration.
3.Separation method
3.1 Filtering.
3.1.1. Filter press.
3.1.2 leaf filters.
3.1.3. Simplified vacuum continuous filtration.
3.1.4. Ultrafiltration.
3.2 centrifugation.
3.2.Filtered.
3.2.2. Detached.
3.2.2.1 tube separation.
3.2.2.2. Butterfly separation.
3.2.4. Sedimentation centrifugation.
4.Purification method
4.1 Extraction.
4.1.1. According to the way the two liquids are in contact.
4.1.1.1. Step-by-step contact type.
4.1.1.2. Continuous contact type.
4.1.2.According to the equipment structure.
4.1.2.1. Component type (step-by-step type).
4.1.2.2. Mixing-clarification tank (centrifugal extraction).
4.1.2.3 tower type (step-by-step type, continuous contact type).
4.1.3 According to the two-phase morphology.
4.1.3.1. Liquid-phase extraction.
4.1.3.2. Solid phase extraction (such as macroporous resin adsorption).
4.2. Precipitation method.
4.2.1. Water extracts alcohol precipitation.
4.2.2. Alcohol extraction and water sinking.
4.2.3 Precipitant method.
4.3. Ion exchange method.
4.4. Chromatography.
4.4.1. Silica gel chromatography.
4.4.2. Alumina chromatography.
4.4.3. Polyamide chromatography.
4.4.4. Molecular sieve method.
4.5. Membrane separation method.
4.6. Crystallization method.
5.Drying method
5.1. Fluidized bed drying.
5.2. Vacuum drying.
5.3. Spray drying.
5.4. Freeze-drying.
5.5. Infrared drying.
5.6. Microwave drying.
5.7. Electrostatic drying.
6.Granulation
6.1 Dry granulation.
6.2. Wet granulation.
6.3. Boiling granulation.