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US 2002/0177533 A1Published application
Particulate solids of surface-active compounds
AssigneeBayer Aktiengesellschaft
InventorsPeter-Roger Nyssen, Dietmar Fuchs, Hans-Peter Muller
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Abstract
The invention relates to particulate solids comprising more than 90% by weight of natural or synthetic surface-active compounds for which a) the mean particle size of the particulate solid particles is 10 to 3000 μm, b) the surface-active compounds are solid at room temperature, and c) the surface-active compounds have a melting point of from 25 to 250° C.
Claims22
A particulate solid comprising more than 90% by weight of a natural or synthetic surface-active compound wherein
- a) particles of the particulate solid have a mean particle size of from 10 to 3000 μm,
- b) the surface-active compound is solid at room temperature, and
- c) the surface-active compound has a melting point of from 25 to 250° C.
A process for the production of a particulate solid of a surface-active compound comprising
- (1) introducing the compound in liquid form at a temperature above the melting point of the compound into a cryogas with droplet formation,
- (2) cooling the compound to the solid state, and
- (3) separating the compound from the cryogas as particulate solid.
Dependencies are inferred from the claim text.