Process for the production of particles
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United States of America Patent
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Oct 23, 2016
filing date -
Feb 21, 2003
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Abstract
A process for the production of particles comprises the steps of formation of a solution of a desired substance in a suitable solvent; ii) generation of an aerosol from the solution of said substance; iii) collection of the aerosol droplets in a vessel containing a non-solvent of said substance; and iv) the application of ultrasound to the droplets dispersed in the non-solvent to effect crystallisation of said substance. The particles produced find application in for example pharmaceutical and agrochemical formulations, especially in inhalation formulations.
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