Composition containing N-butyl thiophosphoric triamide adducts and reaction products
AssigneeKoch Agronomic Services, LLC
InventorsDouglas Barr, Ethel Garnier, Kwame Owusu-Adom
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Abstract
Reaction products and methods for making and using such reaction products are provided. For example, a reaction product comprising an adduct formed from urea, formaldehyde, and a urease inhibitor is described, which can be provided in various forms. For example, such a reaction product can be in the form of a solid or solution. Such a reaction product can also be combined with one or more additional components, including but not limited to, additional urease inhibitor and/or a nitrogen-based fertilizer composition.
Claims19
A composition comprising a urea-formaldehyde concentrate (UFC) and one or more adducts of N-(n-butyl)thiophosphoric triamide (NBPT), urea, and formaldehyde, wherein the one or more adducts comprise about 1% by weight to about 70% by weight of the composition.
A method of making a urease inhibiting urea-formaldehyde concentrate, the method comprising combining N-(n-butyl)thiophosphoric triamide (NBPT) with urea and formaldehyde in amounts suitable to form the concentrate including one or more adducts of the NBPT, urea, and formaldehyde, wherein the one or more adducts comprise about 1% by weight to about 70% by weight of the concentrate.
A method of making a urease inhibiting urea-formaldehyde concentrate, the method comprising combining N-(n-butyl)thiophosphoric triamide (NBPT) with urea and formaldehyde in amounts suitable to form the concentrate including one or more adducts of the NBPT, urea, and formaldehyde, wherein the NBPT, urea, and formaldehyde are combined in amounts such that the formed concentrate comprises about 10% by weight to about 90% by weight of one or more adducts of the NBPT.
A method of forming a urea fertilizer, the method comprising adding to molten urea a mixture comprising a urea-formaldehyde concentrate (UFC) and one or more adducts of N-(n-butyl)thiophosphoric triamide (NBPT), urea, and formaldehyde, wherein the one more adducts of N-(n-butyl)thiophosphoric triamide (NBPT) are represented by the following structure:
Dependencies are inferred from the claim text.