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03

2019-06

Supercritical CO2 Drying Technology

Supercritical drying technology is the first technology to realize the batch preparation of aerogel technology, which is relatively mature, and is also the technology adopted by aerogel enterprises at home and abroad. Supercritical drying aims to reach the critical point of the solvent during the drying process through pressure and temperature control, forming a supercritical fluid. Solvents in the supercritical state have no significant surface tension and are avoided during drying of the material. Shrinkage and fragmentation in the material, thereby maintaining the original structure and state of the material, preventing aggregation and coagulation of primary nanoparticles, and preparing high-surface materials, such as nanomaterials and aerogel materials.

2019-06-03

Supercritical CO2 Drying Technology

30

2019-01

Prospect and Prospect of Supercritical Extraction Separation

Substances exist in the form of gas, liquid and solid, and can undergo phase transitions at different pressures and temperatures. When the temperature is higher than a certain value, any large pressure can not make the pure substance from the gas phase to the liquid phase, the temperature at this time is called the critical temperature Tc; and at the critical temperature, the low pressure at which the gas can be liquefied is called the critical pressure Pc.

2019-01-30

Prospect and Prospect of Supercritical Extraction Separation

14

2019-01

Application of Supercritical Carbon Dioxide Extraction Technology

The characteristics of supercritical CO2 extraction determine its wide application range. For example, in the pharmaceutical industry, it can be used for the extraction of effective ingredients of herbs, the refining of heat-sensitive biological products, and the separation of lipid mixtures; in the food industry, the extraction of hops, the extraction of pigments, etc.; in the spice industry, the refining of natural and synthetic spices; the separation of mixtures in the chemical industry.

2019-01-14

Application of Supercritical Carbon Dioxide Extraction Technology
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