METHOD OF SYNTHESISING COATED ORGANIC OR INORGANIC PARTICLES

摘要

The present invention relates to a method for the "in situ" manufacture, in a pressurised CO₂ environment, of coated particles. The manufacturing method is characterised in that the steps of synthesising the particles and coating these particles are coupled so that the synthesised particles remain dispersed in a pressurised CO₂ environment at least until the coating. The device comprises a reactor for synthesising particles in a pressurised CO₂ environment; a means of injecting the coating material and its precursor into said reactor; a means of feeding said reactor with a pressurised CO₂ environment, in which the means of injecting the coating material or its precursor is coupled to the synthesis reactor so that the injection of the coating material or its precursor into said reactor does not suppress the dispersion in the pressurised CO₂ environment of the particles in said reactor.