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US 10,710,939 B2Granted
Coated inorganic materials and methods for forming the coated inorganic materials
AssigneeGreenTechnologies, LLC
InventorAllan Amir Varshovi
Life of this patent
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Abstract
A composition and method for producing an inorganic material with an inorganic coating. The inorganic coating may include ammonium sulfate. The present disclosure also provides a fertilizer having an inorganic coating. A method according to the present disclosure includes granulating an inorganic material and coating the organic material in situ with a reactive coating composition.
Claims14
A method of preparing a fertilizer composition comprising:
- contacting a first inorganic fertilizer material, the first inorganic fertilizer material comprising a plurality of granules of one or more inorganic fertilizer selected from the group consisting of ammonium nitrate, potassium nitrate, calcium nitrate, calcium ammonium nitrate, calcium chloride, calcium carbonate, urea, potassium sulfate, diammonium phosphate, monoammonium phosphate, ammonium sulfate, rock phosphate, potassium chloride, potassium carbonate, magnesium sulfate, and potassium magnesium sulfate, and a combination thereof;
- with ammonium sulfate, calcium nitrate, and water;
- and mixing, wherein in said contacting and mixing, the ammonium sulfate and calcium nitrate react, to produce, on said first inorganic fertilizer material, a coating comprising calcium sulfate dihydrate and ammonium nitrate;
- and drying;
- to prepare the fertilizer composition.
2 more elements
A fertilizer granule comprising:
- a core comprising one or more inorganic fertilizer selected from the group consisting of ammonium nitrate, potassium nitrate, calcium nitrate, calcium ammonium nitrate, calcium chloride, calcium carbonate, urea, potassium sulfate, diammonium phosphate, monoammonium phosphate, ammonium sulfate, rock phosphate, potassium chloride, potassium carbonate, magnesium sulfate, and potassium magnesium sulfate, and a combination thereof;
- and
- an outer coating comprising calcium sulfate dihydrate and ammonium nitrate;
- wherein a weight percentage of nitrogen in the fertilizer granule is about 15%.
1 more element
A fertilizer granule comprising:
- a core comprising one or more inorganic fertilizer selected from the group consisting of ammonium nitrate, potassium nitrate, calcium nitrate, calcium ammonium nitrate, calcium chloride, calcium carbonate, urea, potassium sulfate, diammonium phosphate, monoammonium phosphate, ammonium sulfate, rock phosphate, potassium chloride, potassium carbonate, magnesium sulfate, and potassium magnesium sulfate, and a combination thereof;
- and
- an outer coating comprising calcium sulfate dihydrate, ammonium nitrate, and ammonium sulfate.
Dependencies are inferred from the claim text.