Grades N-P-K

• 11-52-0

Product Description

physical chemical form granular 11% ammoniacal N (NH4+) 52% phosphate (P2O5) - 44% water soluble - 8% citrate soluble 1.5% sulphate S (SO4-)   color varies from greyish brown to green

Manufacturing Process -
How we make Monoammonium Phosphate 11-52-0

High quality phosphate ore is mined in an open pit and processed into a fine powdered rock. The rock is reacted with water and sulphuric acid to produce a slurry of phosphoric acid and gypsum solids. The gypsum is filtered from the slurry, and the phosphoric acid is increasingly concentrated for various grades and uses. Monoammonium phosphate (MAP) is made by reacting high-quality phosphoric acid with ammonia to produce a hot MAP slurry. A small amount of sulphuric acid is added for grade control. The slurry is turned into solid granules in the granulator. The granular product is dried and screened. Product that is too large or too small is recycled to the granulator.

Benefits

• high analysis reduces handling requirements
• sized for uniform blending
• application flexibility; broadcast, band or seed place
• consistent quality and relatively dust free

Production Locations (capacities -tonnes per year)

Canada     1. Kapuskasing, Ontario (Mine)  average concentrated rock is 38% P2O5 1,100,000 * 2. Redwater, Alberta monoammonium phosphate (MAP) 680,000         United States     3. Dry Valley, Idaho (Mine) average concentrated rock is 28% P2O5 1,100,000 *   4. Conda, Idaho  monoammonium phosphate (MAP) 225,000