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Technology Profile: Production of ammonium nitrate

By Intratec Solutions |

This column is based on “Ammonium Nitrate Porous Prills Production Process – Cost Analysis,” a report published by Intratec Solutions. It can be found at: www.intratec.us/analysis/ammonium-nitrate-production-cost. Ammonium nitrate (NH4NO3) is one of the most commercially important ammonium compounds, both in terms of production volume and usage. Its importance comes from the fact that the salt incorporates nitrogen, and makes it readily available in both forms used by plants and crops: nitrate ion and ammonia. While fertilizers are the main use of ammonium nitrate, it is also used in other industries, such as mining, military and civil engineering. NH4 NO3 is mainly commercialized in the following forms: aqueous solution, prills (pellets) and granules. The main grades are related to the content of nitrogen, usually ranging from 20 to 34.5 wt.% in solid forms. Figure 1. The diagram shows a production process for ammonium nitrate porous prills[/caption] The process The process examined here (Figure 1) is a typical vacuum-neutralization process, which consists of two major sections: neutralization and finishing. Neutralization. Initially, liquid ammonia is evaporated, superheated and sent to a neutralization reactor, along…
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