Ammonium nitrate production is a complex, energy-intensive industrial process requiring significant expertise and infrastructure. The process begins with the production of anhydrous ammonia (NH₃) from natural gas or other feedstocks, which is then oxidized to produce nitric acid (HNO₃). The final step involves a neutralization reaction between ammonia and nitric acid, which produces a hot, concentrated ammonium nitrate melt .

This hot melt is then processed into the final solid product forms—prills or granules—through specialized techniques. Prilling involves spraying the concentrated melt from the top of a tall tower against an upward current of conditioned air. The droplets cool and solidify into spherical particles. The specific cooling and drying conditions are critical, as they determine the final product's density and porosity. For agricultural grade, the goal is dense, hard prills; for industrial grade, the process is engineered to create porous prills with high oil absorption . Granulation is an alternative to prilling, where the melt is layered onto small seed particles in a fluidized bed to grow larger, more uniform granules .

The production process is a major area for innovation. Producers are focusing on improving energy efficiency and reducing the carbon footprint. A key trend is the integration of green or blue ammonia as a feedstock. Globally, there are about 60 green and blue ammonia projects with USD 14 billion in committed investment . This transition is driven by carbon pricing mechanisms like the EU CBAM and could fundamentally alter the cost structure of production. For a comprehensive view of the market and future trends, you can consult the main market report.

For a comprehensive view of ammonium nitrate production, consult the main Ammonium Nitrate Market report.