| abstract |
In the process according to the invention, a granulate suitable for dripping is prepared from the particulate material or mixture of materials and from a solution of a macromolecule binder. This paste is dripped through a capillary into a precipitating liquid that dissolves only the solvent used to dissolve the polymer, while not the other ingredients of the paste. In the cooled, low-surface precipitation liquid, the drop takes a spherical shape, the polymer solvent diffuses from the drop into the precipitating liquid, and the drop solidifies, transforms into a particulate material which is separated and optionally dried. -1- |