Editing Mixing (process engineering) (section)

===Solid deagglomeration===
Very fine powders, such as [[titanium dioxide]] pigments, and materials that have been [[spray drying|spray dried]] may [[agglomerate]] or form lumps during transportation and storage. Starchy materials or those that form gels when exposed to solvent can form lumps that are [[wetting|wetted]] on the outside but dry on the inside. These types of materials are not easily mixed into liquid with the types of mixers preferred for solid suspension because the agglomerate particles must be subjected to intense shear to be broken up. In some ways, deagglomeration of solids is similar to the blending of immiscible liquids, except for the fact that [[coalescence (chemistry)|coalescence]] is usually not a problem. An everyday example of this type of mixing is the production of [[milkshake]]s from liquid milk and solid ice cream.{{Cn|date=March 2025}}