Ammonium Phosphates Snapshot

Ammonium phosphates are derived from a reaction of ammonia and phosphoric acid and they are nearly totally used as fertilizers. Less than 3% of the world consumption is used in industrial applications and animal feed. DAP, diammonium phosphate, is the main solid phosphate fertilizer. Its excellent handling properties and N-P-K composition 18-46-0 make it well suited to both large- and small-scale agriculture. The production of one tonne of DAP requires 0.23 tonnes of ammonia and 1,175 tonnes of phosphoric acid 40% P2O5 (0.470 tonnes P2O5). Actually this means that the production of one tonne of DAP requires almost one tonne of the fourth element, sulphur. The DAP trade is the dominant element in the phosphate scene, heavily influencing production and prices, some 35-40% of the global output of phosacid is used in DAP manufacture. More than 40% of the global production of DAP is traded across borders, much more than ammonia, but significantly less than potash. DAP is widely used in bulk blending. The production of 1 tonne MAP, monoammonium phosphate, typically 11-53-0, requires 0.15 tonnes of ammonia and 1.35 tonnes of phosphoric acid 40% P2O5.  MAP is produced in both granular and non-granular form, the latter being used in the production of granular NPK and suspension fertilizers.

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