Liquid fertilizer
AssigneeHydrite Chemical Co.
InventorsDean Blankenburg, Eric M. Johnson, Nathan Ludtke
Life of this patent
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Abstract
Disclosed is a liquid fertilizer including: (i) an aqueous composition including ammonium thiosulfate; and (ii) a complex of a metal ion and a chelating agent, wherein the metal ion is selected from the group consisting of zinc, manganese, copper, iron, magnesium, calcium, potassium, and molybdenum. The complex lowers the freeze point of the aqueous composition when creating a liquid fertilizer including the ammonium thiosulfate and the complex. Optionally, the liquid fertilizer includes borate ions. Methods of using the liquid fertilizer are also disclosed.
Claims20
A liquid fertilizer comprising:
- an aqueous composition including ammonium thiosulfate, the composition having a first freeze point;
- and
- a complex of a metal ion and a chelating agent, wherein the metal ion is selected from the group consisting of zinc, manganese, copper, iron, magnesium, calcium, potassium, and molybdenum,
- wherein the fertilizer has a second freeze point that is lower than the first freeze point of the aqueous composition, and
- wherein the aqueous composition includes ammonium thiosulfate in a range of 55 weight % to 80 weight %, the weight % of the ammonium thiosulfate being based on percent by weight of the total aqueous composition, and
- wherein the aqueous composition is present in the fertilizer in a range of 95 weight % to 99 weight %, the weight % of the aqueous composition being based on percent by weight of the total fertilizer, and
- wherein the chelating agent is selected from aminocarboxylic acids, heterocyclic carboxylic acids, polycarboxylic acids, monocarboxylic acids, and mixtures and salts thereof, and
- wherein the liquid fertilizer is stable,
- wherein the liquid fertilizer does not include phosphites.
A liquid fertilizer comprising:
- an aqueous composition including ammonium thiosulfate, the composition having a first freeze point;
- a complex of a metal ion and a chelating agent, wherein the metal ion is selected from the group consisting of zinc, manganese, copper, iron, magnesium, calcium, potassium, and molybdenum;
- and
- borate ions,
- wherein the fertilizer has a second freeze point that is lower than the first freeze point of the aqueous composition, and
- wherein the aqueous composition includes ammonium thiosulfate in a range of 55 weight % to 80 weight %, the weight % of the ammonium thiosulfate being based on percent by weight of the total aqueous composition, and
- wherein the aqueous composition is present in the fertilizer in a range of 95 weight % to 99 weight %, the weight % of the aqueous composition being based on percent by weight of the total fertilizer, and
- wherein the chelating agent is selected from aminocarboxylic acids, heterocyclic carboxylic acids, polycarboxylic acids, monocarboxylic acids, and mixtures and salts thereof, and
- wherein the liquid fertilizer is stable,
- wherein the liquid fertilizer does not include phosphites.
Dependencies are inferred from the claim text.