Composition containing N-(n-butyl) thiophosphoric triamide adducts and reaction products

• US 11,130,717 B2
• Filed: 09/23/2019
• Issued: 09/28/2021
• Est. Priority Date: 07/24/2015
• Status: Active Grant

• Current Assignee: KOCH Agronomic Services LLC (KOCH Industries Incorporated)
• Original Assignee: KOCH Agronomie Services LLC
• Inventors: Barr, Douglas, Garnier, Ethel, Owusu-Adom, Kwame
• Primary Examiner(s): Smith, Jennifer A
• Application Number:
  US16/578,725
• Publication Number:
  US 20200017420A1
• Time in Patent Office: 736 Days
• CPC Class Codes: C05C 9/00 Fertilisers containing urea or urea compounds
• CPC Class Codes: C05G 3/90 for affecting the nitrification of ammonium compounds or urea in the soil
• CPC Class Codes: C07F 9/224 Phosphorus triamides
• CPC Class Codes: Y02P 60/21 Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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.

Claims

1. A liquid composition comprising one or more adducts of the following structures:

2. The composition of claim 1, wherein the composition comprises no dicyandiamide.

3. The composition of claim 1, further comprising free N-(n-butyl) thiophosphoric triamide (NBPT), formaldehyde, and/or urea formaldehyde polymer.

4. The composition of claim 1, wherein the solvent is water.

5. The composition of claim 1, wherein the solvent is an organic solvent.

6. The composition of claim 5, wherein the solvent is N-methylpyrrolidone and/or propylene glycol.

7. The composition of claim 1, wherein the surfactant is chosen from the group consisting of alkylbenzenesulfonates, lignin sulfonates, alkylphenol ethoxylates, polyalkoxylated amines, and combinations thereof.

8. The composition of claim 1, wherein the surfactant is a non-ionic surfactant.

9. The composition of claim 1, wherein the solvent and/or surfactant is present in an amount ranging from about 1 to about 75 percent by weight of the composition.

10. A liquid composition comprising

free N-(n-butyl) thiophosphoric triamide (NBPT);

one or more adducts of the following structure;

11. The composition of claim 10, wherein the solvent is chosen from the group consisting of water, alkyl amide, glycol, glycol derivatives, protected glycols, acetonitrile, dimethyl sulfoxide, alkanolamines, alkylsulfones, monoalcohols, dibasic esters and derivatives thereof, alkylene carbonates, monobasic esters, carboxylic acids, and glycol esters.

12. The composition of claim 11, wherein the alkyl amide is chosen from the group consisting of N-methylpyrrolidone, N-ethylpyrrolidone, and dimethylformamide.

13. The composition of claim 11, wherein the monoalcohol is chosen from the group consisting of methanol, ethanol, propanol, isopropanol, and benzyl alcohol.

14. The composition of claim 10, wherein the surfactant is chosen from the group consisting of alkylbenzenesulfonates, lignin sulfonates, alkylphenol ethoxylates, polyalkoxylated amines, and combinations thereof.

15. The composition of claim 10, wherein the surfactant is a non-ionic surfactant.

16. The composition of claim 10, wherein the one or more adducts and the free NBPT are present in a weight ratio ranging between about 15 wt. % in total of adduct and NBPT to about 50 wt. % in total of adduct and NBPT.

17. The composition of claim 16, wherein the one or more adducts and the free NBPT are present in a weight ratio ranging between about 20 wt. % in total of adduct and NBPT to about 40 wt. % in total of adduct and NBPT.

18. The composition of claim 17, wherein the one or more adducts and the free NBPT are present in a weight ratio ranging between about 25 wt. % in total of adduct and NBPT to about 30 wt. % in total of adduct and NBPT.

19. The composition of claim 10, wherein the solvent and/or surfactant is present in an amount ranging from about 1 to about 75 percent by weight of the composition.