Patent ID: 6589500
Filing Date: 2003-07-08
Classification: B01D,B01F,B01J

Abstract:
A method for the manufacture of a product in the form of a controlled uniform particle size precipitate, which method comprises the steps of supplying to a first tangential input of a fluidic vortex mixer a solvent containing the product or a precursor therefor in solution, said fluidic vortex mixer having a second tangential input and an axial outlet, supplying to said second tangential input of the fluidic mixer an anti-solvent, whereby rapid mixing of the solvent and anti-solvent takes place in the vortex mixer and a precipitate of the product or precursor therefor is produced in the solvent/anti-solvent mix emerging from said axial outlet of the vortex mixer, and feeding said emerging mix from the axial outlet directly into a precipitate entrapment device for entrapping said precipitate upon its emergence from said axial outlet for preventing or reducing further growth of said precipitate.