PARTICLES FROM SUPERCRITICAL FROM SUPERCRITICAL FLUID EXTRACTION OF EMULSION

摘要

A method of producing microparticles and nanoparticles of a solute via the extraction of solvent, having the solute dissolved therein, from an emulsion from source (114) using a supercritical fluid form source (112). The solute to be precipitated is dissolved in the solvent to form a solution, and the solution is dispersed in an immiscible or partially miscible liquid to form an emulsion at source (114). The particles are produced via the extraction of t he solvent from the emulsion using the supercritical fluid in vessel (110). The process can produce an aqueous suspension of particles that are substantiall y insoluble in water, and the solvents used in the process to form the emulsio n initially can be recovered and recycled from vessel ports (120) and (122).