The physical form of ammonium nitrate—whether prills or granules—is not merely an aesthetic choice; it fundamentally dictates its performance in specific applications. The market is segmented by form, each with distinct manufacturing processes and end-use requirements. Porous prills currently hold the largest share, but the granular segment is growing rapidly, driven by technological advancements in agriculture and explosives.

Porous prills are the dominant form for industrial explosives. These small, low-density spheres are engineered with a high internal porosity to rapidly absorb liquid fuel oil, a property essential for creating ANFO and emulsion explosives . The prilling process, where the melt is sprayed in a tower, is optimized to create this porosity while ensuring the prills are strong enough to withstand handling . In the agricultural segment, porous prills are also used in bulk blending operations due to their compatibility with other granular materials .

Granular ammonium nitrate is the fastest-growing form, with a projected CAGR of 6.1% . This growth is largely due to the rise of precision agriculture and the increasing demand for polymer-coated controlled-release fertilizers. Granules are harder and more uniform than prills, making them more resistant to breakage during handling, coating, and application. The granulation process involves building up layers of the melt onto seed particles in a fluidized bed, creating a smooth, spherical, and mechanically robust granule . For a complete overview of the market, you can refer to the main industry report.

For a complete overview of the ammonium nitrate prills and granules market, you can refer to the main Ammonium Nitrate Market report.

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