Mosaic Florida
 
 
 
 
Phosphate Fertilizer Production
 
In order to be used as crop nutrients or animal feed, phosphate rock must be converted to a water-soluble form.  Mosaic manufactures fertilizer at three facilities in Hillsborough and Polk Counties. Click here to view a map of our global operations and locations.

However, there's more to the manufacturing story than just our fertilizer and animal feed products. Mosaic is one of the largest renewable energy producers in Florida, generating enough "clean and green" energy to power 100,000 homes. Click here to learn more about cogeneration and Mosaic's green practices. 
 
This manufacturing process begins when the rock is finely ground to uniform size. Sulfuric acid is then added to form phosphoric acid, which is concentrated through evaporation, reacted with ammonia, and granulated to produce two important phosphate/nitrogen crop nutrients - diammonium phosphate (DAP) and monoammonium phosphate (MAP).

These products are later blended to form the nutrients commonly found on bags of lawn fertilizer (e.g., 10-10-10), representing levels of nitrogen, water-soluble phosphorous and potassium. Click here to learn more about Mosaic's products.

Phosphoric acid is also used to manufacture monocalcium and dicalcium phosphate products, which are sold to the animal feed ingredient industry as important diet supplements for use in swine, poultry and cattle feed.
 
 
Phosphogypsum - a By-Product of Fertilizer Manufacturing, Not Phosphate MiningPhosphogypsum, commonly referred to as gypsum or calcium sulfate, is a by-product of the production of phosphate fertilizer. It is not associated with any of Mosaic's mining projects in south-central Florida. Because it is mildly radioactive, gypsum is stored in stacks adjacent to manufacturing facilities, under exacting standards established by the U.S. Environmental Protection Agency and the Florida Department of Environmental Protection. Safe and productive uses for phosphogypsum are currently under study by the Florida Industrial and Phosphate Research Institute, an independent state research agency.