Supercritical Fluid Assisted Processing of Filled Compounds

7 Supercritical Fluid Assisted Processing of Filled Compounds 

Supercritical fluids are neither in the gaseous or liquid state and can be formed above a critical temperature and pressure. For example CO2 becomes supercritical above a temperature of 31 °C and a pressure of 7.3 MPa. Under these conditions supercritical fluids can provide a more environmentally acceptable alternative to organic solvents and have consequently found widespread application in a range of process industries, such as extraction aids in both pharmaceutical and food preparation [91-93]. 

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