Abstract

The present invention relates to a process for forming substantially dust-free additive granules, comprising the steps of: a) extruding or otherwise processing an additive or blend of additives to provide an substrate; b) cooling the substrate; c) conveying the substrate onto a profiled surface; and d) fragmenting the substrate into granules by means of a first rotating roller bearing on the substrate on the profiled surface.

IPC Classes  ?

• B01J 2/20 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
• B02C 4/08 - Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
• B02C 4/12 - Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate
• B02C 4/20 - Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a bar wherein the roller is corrugated or toothed