| 摘要 |
The invention relates to a method for the preparation of particles comprising the following steps: the dispersion, with a first supercritical fluid (SCF-D), of a substance liquid at least comprising a mixture of a substance, of which particles are to be prepared, and a liquid carrier medium; and the subsequent extraction, with another supercritical fluid (SCF-E), after the dispersion of the substance liquid, of the liquid carrier medium. An apparatus according to the invention comprises a particle formation reactor (2), the pressure and temperature of which are controllable; means (18, 21) for the delivery of a substance liquid; feeding means (22, 17; 12, 6) for two different supercritical fluids (SCF-D, SCF-E); a nozzle (17) for dispersing the substance liquid; and for feeding of the dispersed substance liquid to the particle formation reactor (2). |
