prilling

English edit

prilling (uncountable)

The solidification of droplets of molten material falling against an upward stream of air; used especially to agglomerate ammonium nitrate and urea for use as a fertilizer.
- 2005, Douglas K. Louie, Handbook of Sulfuric Acid Manufacturing, pages 5–11:
  In air prilling, molten sulphur is sprayed from the top of a tower against an upward flow of air. As the sulphur falls, the sulphur droplets break into small droplets and cools into prills.

solidification of droplets of molten material