Compositions suitable for use in making fertilizers, methods for making such compositions, and method for making fertilizers using the same

Patent metadata

Field	Value
Publication number	US-11084763-B2
Application number	US-201715622207-A
Country	US
Kind code	B2
Filing date	Jun 14, 2017
Priority date	Jun 18, 2016
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A composition comprises a nonaqeuous, liquid carrier, an inhibitor compound, and a colorant composition comprising an azo colorant. A method for making the composition is also provided. A method for making a fertilizer composition using the disclosed composition is also provided.

First claim

What is claimed is:

1. A composition comprising:
(a) a nonaqueous, liquid carrier;
(b) an inhibitor compound selected from the group consisting of urease inhibitors, nitrification inhibitors, and mixtures thereof; and
(c) a colorant composition, the colorant composition comprising:
(i) an azo colorant; and
(ii) about 1 wt. % to about 60 wt. % of water,

wherein the azo colorant is selected from the group consisting of (i) azo colorants comprising an azo chromophore and a polyoxyalkylene polymer covalently bound to the azo chromophore and (ii) azo colorants comprising a quaternary ammonium counterion having at least one polyoxyalkylene polymer covalently bound thereto.

2. The composition of claim 1 , wherein the nonaqueous, liquid carrier is selected from the group consisting of N-methylpyrrolidone, polyvinylpyrrolidone, propylene glycols, ethanolamine, propylene carbonate, alkyl-glycol ethers, alkyl-arylpolyether alcohols, and mixtures thereof.

3. The composition of claim 1 , wherein the urease inhibitor is selected from the group consisting of N-(n-butyl)thiophosphoric triamide, N-(n-butyl)phosphoric triamide, N-(2-nitrophenyl)phosphoric triamide, thiophosphoryl triamide, phenyl phosphorodiamidate, cyclohexyl thiophosphoric triamide, cyclohexyl phosphoric triamide, phosphoric triamide, hydroquinone, 1,4-benzoquinone, hexaamidocyclotriphosphazene, thiopyridines, thiopyrimidines, thiopyridine-N-oxides, N,N-dihalo-2-imidazolidinone, N-halo-2-oxazolidinone, and mixtures thereof.

4. The composition of claim 3 , wherein the urease inhibitor is N-(n-butyl) thiophosphoric triamide.

5. The composition of claim 1 , wherein the nitrification inhibitor is selected from the group consisting of 2-chloro-6-(trichloromethyl)pyridine, 2-amino-4-chloromethylpyrimidine, dicyandiamide, 3,4-dimethyl pyrazole phosphate, cyanoguanidine, N-2,5-dichlorophenylsuccinanilic acid, guanyl thiourea, sulfanyll-amidothiazole, 4-amino-1,2,4-triazole, 3-methylpyrazole, 1H-1,2,4-triazole, and mixtures thereof.

6. The composition of claim 1 , wherein the composition comprises a urease inhibitor and a nitrification inhibitor.

7. A method for making a composition, the method comprising the steps of:
(a) providing a nonaqueous, liquid carrier;
(b) providing an inhibitor compound selected from the group consisting of urease inhibitors, nitrification inhibitors, and mixtures thereof;
(c) providing a colorant composition, the colorant composition comprising:
(i) an azo colorant; and
(ii) about 1 wt. % to about 60 wt. % of water;

(d) mixing the nonaqueous, liquid carrier, the inhibitor compound, and the colorant composition to produce a composition,
wherein the azo colorant is selected from the group consisting of (i) azo colorants comprising an azo chromophore and a polyoxyalkylene polymer covalently bound to the azo chromophore and (ii) azo colorants comprising a quaternary ammonium counterion having at least one polyoxyalkylene polymer covalently bound thereto.

8. The method of claim 7 , wherein the nonaqueous, liquid carrier is selected from the group consisting of N-methylpyrrolidone, polyvinylpyrrolidone, propylene glycols, ethanolamine, propylene carbonate, alkyl-glycol ethers, alkyl-arylpolyether alcohols, and mixtures thereof.

9. The method of claim 7 , wherein the urease inhibitor is selected from the group consisting of N-(n-butyl)thiophosphoric triamide, N-(n-butyl)phosphoric triamide, N-(2-nitrophenyl)phosphoric triamide, thiophosphoryl triamide, phenyl phosphorodiamidate, cyclohexyl thiophosphoric triamide, cyclohexyl phosphoric triamide, phosphoric triamide, hydroquinone, 1,4-benzoquinone, hexaamidocyclotriphosphazene, thiopyridines, thiopyrimidines, thiopyridine-N-oxides, N,N-dihalo-2-imidazolidinone, N-halo-2-oxazolidinone, and mixtures thereof.

10. The method of claim 9 , wherein the urease inhibitor is N-(n-butyl) thiophosphoric triamide.

11. The method of claim 7 , wherein the nitrification inhibitor is selected from the group consisting of 2-chloro-6-(trichloromethyl)pyridine, 2-amino-4-chloromethylpyrimidine, dicyandiamide, 3,4-dimethyl pyrazole phosphate, cyanoguanidine, N-2,5-dichlorophenylsuccinanilic acid, guanyl thiourea, sulfanyll-amidothiazole, 4-amino-1,2,4-triazole, 3-methylpyrazole, 1H-1,2,4-triazole, and mixtures thereof.

12. The method of claim 7 , wherein the inhibitor compound comprises a urease inhibitor and a nitrification inhibitor.

13. A method for producing a fertilizer composition, the method comprising the steps of:
(a) providing a granular substrate having a surface, the granular substrate comprising a nitrogen source;
(b) providing a coating composition, the coating composition comprising:
(i) a nonaqueous, liquid carrier;
(ii) an inhibitor compound selected from the group consisting of urease inhibitors, nitrification inhibitors, and mixtures thereof; and
(iii) a colorant composition, the colorant composition comprising:
(1) an azo colorant; and
(2) about 1 wt. % to about 60 wt. % of water; and

(c) applying the coating composition to at least a portion of the surface of the granular substrate; and
(d) drying the granular substrate from step (c) to produce a coating on at least a portion of the surface of the granular substrate,
wherein the azo colorant is selected from the group consisting of (i) azo colorants comprising an azo chromophore and a polyoxyalkylene polymer covalently bound to the azo chromophore and (ii) azo colorants comprising a quaternary ammonium counterion having at least one polyoxyalkylene polymer covalently bound thereto.

14. The method of claim 13 , wherein the nonaqueous, liquid carrier is selected from the group consisting of N-methylpyrrolidone, polyvinylpyrrolidone, propylene glycols, ethanolamine, propylene carbonate, alkyl-glycol ethers, alkyl-arylpolyether alcohols, and mixtures thereof.

15. The method of claim 13 , wherein the urease inhibitor is selected from the group consisting of N-(n-butyl)thiophosphoric triamide, N-(n-butyl)phosphoric triamide, N-(2-nitrophenyl)phosphoric triamide, thiophosphoryl triamide, phenyl phosphorodiamidate, cyclohexyl thiophosphoric triamide, cyclohexyl phosphoric triamide, phosphoric triamide, hydroquinone, 1,4-benzoquinone, hexaamidocyclotriphosphazene, thiopyridines, thiopyrimidines, thiopyridine-N-oxides, N,N-dihalo-2-imidazolidinone, N-halo-2-oxazolidinone, and mixtures thereof.

16. The method of claim 15 , wherein the urease inhibitor is N-(n-butyl) thiophosphoric triamide.

17. The method of claim 13 , wherein the nitrification inhibitor is selected from the group consisting of 2-chloro-6-(trichloromethyl)pyridine, 2-amino-4-chloromethylpyrimidine, dicyandiamide, 3,4-dimethyl pyrazole phosphate, cyanoguanidine, N-2,5-dichlorophenylsuccinanilic acid, guanyl thiourea, sulfanyll-amidothiazole, 4-amino-1,2,4-triazole, 3-methylpyrazole, 1H-1,2,4-triazole, and mixtures thereof.

18. The method of claim 13 , wherein the coating composition comprises a urease inhibitor and a nitrification inhibitor.

Assignees

• Milliken & Co

Inventors

• Sculthorpe Christopher M
• Newberry Adam J
• Skinner Kellie P

Classifications

• C05G5/30

  Layered or coated, e.g. dust-preventing coatings · CPC title

• C09K15/04

  containing organic compounds · CPC title

• Y02P60/21

  Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures · CPC title

• C05G3/90 Primary

  for affecting the nitrification of ammonium compounds or urea in the soil · CPC title

• C09K15/26

  containing nitrogen and sulfur · CPC title