Particle Agglomeration and Granule Growth

Bridges due to immobile liquids form adhesional and cohesional bridging bonds. Thin adsorption layers are immobile and can contribute to the bonding of fine particles under certain circumstances. 

Mobile liquids, where interfacial and capillary forces are present. 

Solid bridges formed due to crystallization of dissolved substances during drying. 

The type of bond formed goes through four transition states, described by Newitt and Conway-Jones (33) as  

Droplet (normally happens during spray drying) 

The type of bonds formed approaches through four transition states, described by Newitt and Conway-Jones (34) as (1) pendular, (2) funicular, (3) capillary, and (4) droplet, which normally happens during spray drying. 

If the binding forces are in excess of the breakup forces, either in the wet state or in the dry state, uncontrolled growth will proceed to an overwetted bed or production of excessive fines, respectively. If a more reasonable balance of forces is present, con- 

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