§16§Application of compressed gases as solvents has found widespread interest within the scientific community. Its processes have industrial applications. §Gas Extraction deals with the possibilities of supercritical gases as solvents for separation processes. The volume combines physico-chemical aspects with chemical engineering methods. The text generalizes as far as possible, and treats examples in detail. §Gas Extraction covers, for the first time, the subject in textbook form. Most of the examples provide new results that will be helpful for practicing scientists, engineers, and students who want to make use of the techniques. §04§1 Introduction.- 2 Properties of Supercritical and Near-Critical Gases and of Mixtures with Sub- and Supercritical Components.- 3 Supercritical Gases as Solvents: Phase Equilibria.- 4 Heat and Mass Transfer.- 5. Solvent cycle.- 6 The Separation of Solvent and Dissolved Substances: Methods for Precipitation.- 7 Extraction of Substances with Supercritical Fluids from Solid Substrates.- 8 Countercurrent Multistage Extraction.- 9 Chromatography with Supercritical Fluids (Supercritical Fluid Chromatography, SFC).- 10 Conclusion.
