agglomeration otherwise aggregation (rus. агломерация otherwise агрегация) — spatial grouping and adhesion of dispersed particles resulting in formation of larger-sized "secondary" particles.


Agglomeration occurs through the binding of primary particles as a result of weak (leading to formation of aggregates) or strong (leading to formation of agglomerates) interactions, while the primary particles substantially retain their shape and size. This distinguishes agglomeration from recrystallisation, where the growth of large particles occurs through the mergence of smaller ones. The term "aggregation" can also be used to denote the process of spatial grouping.


  • Smirnov Andrey V.
  • Tolkachev Nikolay N.


  1. Aleman J., Chadwick A. V. et al. Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007) // Pure and Applied Chemistry. 2007. V. 79, №10. P. 1801–1827.
  2. Rouquerol F., Rouquerol J., Sing K. Adsorption by powders and porous solids. — London: Academic Press, 1999. — 465 p.

Contact us