Improvements in prill drying.

摘要

A process for obtaining explosives grade ammonium nitrate (EGAN) prill comprises the step of drying substantially mono-sized EGAN "wet" prill by a process of solids plug flow fluidisation using a vertical transverse flow of drying gas to yield a product of bulk density around 0.6 to 0.7 gm/cc and a final water content in the range of from around 0.1 to 0.6% by weight water.