| 摘要 |
<p>A method for producing particles of predetermined sized and/or morphology of a substance in a production arrangement comprising the steps of: i) mixing within a spray nozzle and under flow conditions a stream of a liquid solution in which the substance is dissolved with a stream of a fluid, and ii) passing the mixture in the form of a spray through a spray outlet of the nozzle into a particle collecting container, and iii) separating and collecting within the container the particles. The characteristic feature is that the solvent is a liquid and the fluid is an aqueous liquid in a subcritical state. Preferred nozzles have two coaxial internal transport conduits. One aspect is a production arrangement that can be used in the method. Its characteristic features are functions for a) recycling fluid used in the process, b) for including a make-up agent in the fluid stream, and/or increasing production by paralleling particle formation.</p> |
