Solubility, Extraction, and Nanoparticles Production in Supercritical Carbon Dioxide: A Mini‐Review
Gholamhossein Sodeifian, Mohammad Mahdi Behvand Usefi
Abstract
Abstract Supercritical carbon dioxide (SC‐CO 2 ) is CO 2 that is stored beyond its critical point of 7.4 MPa and 31.1 °C. Given the request for consumption of a green solvent for the environment, SC‐CO 2 is widely utilized in chemical, food, and pharmaceutical industries. To design material and drug production processes using supercritical fluid (SCF) technology, knowledge of their solubility is important. Temperature and pressure are the main factors in the study of solubility. Solubility data are then evaluated using equation of state, semi‐empirical, and intelligence models to establish suitable correlations. SC‐CO 2 is one of the most important materials used in SCFs to study solubility. Another application of SC‐CO 2 is in the field of material extraction to reduce the consumption of organic solvents. Nanoparticles production in drug industry is another advantage of SC‐CO 2 . Micro and nanoparticles can be produced using SCF techniques. In this review, the applications of SC‐CO 2 in drug solubility, extraction of valuable materials, and nanoparticles production for pharmaceutical processes are reported and discussed. Finally, the main challenges are explained.