Process for preparing granules of water-insoluble solids
AssigneeBayer Aktiengesellschaft
InventorsHans-Heinz Molls, Vaclav Kaspar, Bernhard Vosteen, Georg Dehmel, Reinhold Hornle, Karlheinz Wolf
Life of this patent
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Abstract
Process for preparing granules of water-insoluble solids, characterized in that a non-thixotropic press or filter cake of the solid is comminuted by cutting and the product obtained is dried while in rolling motion in a dryer for pourable solids.
Claims2
A process for preparing granules of water-insoluble solids said solids comprising a water-insoluble pigment which comprises comminuting a non-thixotropic press or filter cake of such solids by introducing said press or filter cake via a rotating driver to a dicing cylinder of a dicing apparatus and therein dicing said solids and drying the so diced solids in a dryer while subjecting the same to a rolling motion such that said solids only come in contact with parts of said dryer which are rigidly connected to one another.
A process for preparing granules of water-insoluble solids said solids comprising a water-insoluble dyestuff which comprises comminuting a non-thixotropic press or filter cake of such solids by introducing said press or filter cake via a rotating driver to a dicing cylinder of a dicing apparatus and therein dicing said solids and drying the so diced solids in a dryer while subjecting the same to a rolling motion such that said solids only come in contact with parts of said dryer which are rigidly connected to one another.
Dependencies are inferred from the claim text.