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What is CO2 in Essential Oils
Apr 23, 2018

The principle of the supercritical carbon dioxide extraction separation process is the use of supercritical carbon dioxide for the special dissolution of certain special natural products, the use of supercritical carbon dioxide solvency and its density relationship, namely the use of pressure and temperature on the ability of supercritical carbon dioxide dissolution. ongoing. In the supercritical state, the supercritical carbon dioxide is brought into contact with the material to be separated to selectively extract components of different polarity, boiling point, and molecular weight. Of course, the extracts obtained for the respective pressure ranges cannot be uniform, but the conditions can be controlled to obtain the optimal proportion of the mixed components, and then the supercritical fluid can be converted into a common gas by means of depressurization and temperature increase. Complete or basic precipitation, so as to achieve the purpose of separation and purification, so the supercritical fluid CO2 extraction process is a combination of extraction and separation.