Method and apparatus for the formation of particles

Details Method and apparatus for the formation of particles Method and apparatus for the formation of particles

B - Operations, Transporting

01

J

B01J 2/04 (2006.01) A61K 9/14 (2006.01) A61K 9/16 (2006.01) B01F 5/06 (2006.01) B05B 7/06 (2006.01)

Patent

CA 2166301

The invention provides a method for the formation of a particulate product which comprises the co-introduction of a supercritical fluid and a vehicle containing at least one substance in solution or suspension into a particle formation vessel, the temperature and pressure in which are controlled, such that dispersion and extraction of the vehicle occur substantially simultaneously by the action of the supercritical fluid. The invention also provides a particulate product of such a method; apparatus for use in carrying out the method; and a nozzle for use in the apparatus for co- introducing fluids into a particle formation vessel.

L'invention concerne un procédé de formation d'un produit particulaire comprenant l'introduction simultanée d'un fluide supercritique et d'un véhicule contenant au moins une substance en solution ou en suspension dans une cuve de formation de particules à l'intérieur de laquelle la température et la pression sont contrôlées, de telle manière que la dispersion et l'extraction du véhicule surviennent sensiblement en même temps sous l'action du fluide supercritique. L'invention se rapporte également à un produit particulaire obtenu selon ce procédé, à l'appareillage utilisé pour réaliser le procédé, ainsi qu'à une buse servant dans cet appareillage à introduire simultanément des fluides dans une cuve de formation de particules.

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