Formation of the Ammonium Nitrate Nanoporous Structure in the Vortex Device with Pre-humidification of Granules

Abstract

The article deals with morphological features of the nanoporous surface of ammonium nitrate granules obtained through the humidification of the ordinary ammonium nitrate followed by heat treatment. A new method to produce porous ammonium nitrate in a vortex device with a remote pre-humidification zone is proposed. The morphology of the initial granules of the ordinary ammonium nitrate, ammonium nitrate after humidification and heat treatment in a vortex granulator, and ammonium nitrate after humidification and heat treatment in a vortex granulator with a pre-humidification zone is compared. The obtained data form the basis to improve the technology of the porous ammonium nitrate production in devices with active hydrodynamic modes.